Stuttgarter Beiträge zur Naturkunde Serie A (Biologie)

Herausgeber:

Staatliches Museum für Naturkunde, Rosenstein 1, D-70191 Stuttgart

Stuttgarter Beitr. Naturk. Nr. 691 | 95S.,28 Abb. Stuttgart, 20. IV. 2006

Contribution to the knowledge of African Clytrinae (Coleoptera: Chrysomelidae)

Lev N. MEDVEDEV

Abstract

Three new species of African Clytrinae are described: Clytra pubipennis n.sp. and Clytra camerunica n.sp. from Cameroon, Coptocephala pubescens n.sp. from Guinea and Guinea- Bissau. New synonyms: Clytra monardi Pic n.syn. = Clytra lacerofasciata Quedenfeld; Clytra weisei L. Medvedev n. syn. = Clytra scutellaris Weise; C. juncta Pic n. syn. and C. dar- tevellei Burgeon n.syn. = Coptocephala imitans imitans Jacoby. Keys for the Clytra maxima and Coptocephala imitans species groups are given.

Keywords: Chrysomelidae, Clytrinae, Clytra, Coptocephala, Africa, new species, new sy- nonyms.

Zusammenfassung

Drei neue Clytrinae aus Afrika werden beschrieben: Clytra pubipennis n.sp. und Clytra camerunica n.sp. aus Kamerun, Coptocephala pubescens n.sp. aus Guinea und Guinea-Bis- sau. Neue Synonyme: Clytra monardi Pic n. syn. = Clytra lacerofasciata Quedenfeld; Clytra weisei L. Medvedev n. syn. = Clytra scutellaris Weise; C. juncta Pic n.syn. und C. dartevellei Burgeon n. syn. = Coptocephala imitans imitans Jacoby. Bestimmungsschlüssel für die Clytra maxima- and Coptocephala imitans-Artengruppen werden gegeben.

Contents

DP „nt ode N na RE eee ned U ec 2 AK OO I N TE ee nr 2 De CUT ANIME CLOUDS oe ce sig mern Pen hr te ER ath EG AY af ee es Pr 2 ZAP iN DUVIDCRIIS ASSP NN pec Site cet ae he DE NE ORS eGR Sy 2

2.12, Clyira.cameränca: Pu. ang PP vs At ike pO hte IT 3

2.1.3 Key to specks ot Chirz maxımazgroup nee ae eee ne 3

D2 PCOPLOCED a a TITAS: ST OUP nn an ee Bw etn ues ee SPN A 6 22 Cremerall trun sure cease. hae ame. Bl an ova anime © teins aan ann nates anna Mla Wad 6

DZ Df Cbptocephala.pubescens BSP ar Le Mu et 6

2.2.3 Key to species of Coptocephala imitans-group +4. n 2 2 en 7.

Sr Reterencess. EIERN EN SAT a ET EEE a ml 9

2 STUTTGARTER BEITRÄGE ZUR NATURKUNDE Ser. A, Nr. 691 1 Introduction

African Clytrinae are still unsatisfactorily investigated (MEDVEDEv 1993, MEDVEDEV & ERBER 2003). In the present paper I revise two poorly known species groups, the Clytra maxima-group and the Coptocephala imitans-group.

The genus Clytra Laicharting, 1781 is represented in Africa by a number of nat- ural species groups which are poorly known. This concerns primarily the C. maxi- ma-group which consists of six described species: C. maxima Jacoby, 1895, C. lacerofasciata Quedenteld, 1888, C. scutellaris Weise, 1912, C. monardi Pic, 1939, C. nigrohumeralis Pic, 1939 and C. weisei L. Medvedev, 1969. This group is character- ized by the combination of the following four characters: entirely black prothorax; pubescent propleurae; a peculiar structure of the aedeagus which is very deeply con- cave dorsally all along its length; elytra usually fulvous, but often with black pattern, sometimes more or less pubescent dorsally. By a number of characters and its gener- al appearance this species group is comparable with the subgenus Ovoclytra L. Medvedev, 1961 from the Near East.

All species of the C. maxima-group, especially males, are extremely rare in muse- um collections. Having been involved in the study of African Clytrinae since 50 years, I have about 20 specimens belonging to this group at my disposal, and some of them I am inclined to consider as new species. As far as I can judge, the structure of the aedeagus in this group is highly characteristic, hence making the dis- tinction of the species easy. A key to the species and descriptions of two species new for science are provided below.

The Coptocephala imitans-group is comparatively common and widely distrib- uted, but the species are variable in the colour of the upperside, so that many aber- rations have been described as separate species. After having investigated the struc- ture of the aedeagus, I propose a key for this group and describe a new species.

Acronyms of depositories

LM Collection of L. MEDvEDEv, Moscow, Russia SMNS Staatliches Museum für Naturkunde, Stuttgart, Germany

Acknowledgments

The author is grateful to JAN BEZDEK (Brno) for valuable remarks.

2 Taxonomy

2.1 Clytra maxima-group

2.1.1 Clytra pubipennis n.sp. (Figs. 1, 8)

Holotype (2): Cameroon, leg. JANGERN, V.1912, coll. L. Korın (LM). Paratype: 1 2, Uganda, leg. GravER (LM).

Description Black, elytra fulvous with apex and hind part of lateral margin narrowly black (Fig. 1), antennal segments 2 and 3 reddish, at least below. Pubescence white yellow. Body cylindrical. Clypeus shining, sparsely punctate, with a few short hairs, its anterior margin triangularly incised. Frons distinctly pubescent, with coarse jeder

MEDVEDEV, AFRICAN CLYTRINAE 3

lw

Figs. 1-4. Clytra spp., pattern of elytron. - 1. C. pubipennis n. sp. 2. C. sp. A. 3. C. lacerofas- ciata. 4. C. maxima.

tudinal rugosity in middle and granulate near inner side of eyes, granules weakened anteriorly. Vertex pubescent, finely punctate, with longitudinal central groove. An- tennae serrate from the 5‘ segment on. Prothorax with comparatively dense (holo- type) or very sparse (paratype) adpressed pubescence, finely punctate, dull, with in- terspaces microscopically dotted; lateral margins reflexed throughout its length. Scutellum triangular, pubescent and punctured except mid line and extreme apex. Elytra densely pubescent and punctured, dull. Spermatheca as in Fig. 8. Body length 11.0-11.5 mm.

2.1.2 Clytra camerunica n.sp. (Figs. 7, 10)

Holotype (d): Cameroon, Joko (LM). Paratype: 1 2, Cameroon, Batanga (LM).

Description

Black, elytra fulvous with extreme apex narrowly black (indistinct in 3), antennal segments 2 and 3 reddish. Pubescence silvery white.

Body elongate ovate. Clypeus shining, sparsely punctate, its anterior margin broadly incised. Frons densely pubescent along inner margin of eyes, with coarse punctures and rugosity, longitudinally grooved in middle. Vertex convex, with dense erect pubescence and fine punctures. Antennae serrate from the 5th segment on. Up- perside not pubescent. Prothorax shining, very finely punctate, lateral margin nar- rowly reflexed in anterior half, but much broader behind middle. Scutellum triangu- lar with truncate apex, pubescent and punctured except mid line and apex. Elytra shining, finely punctate. Last abdominal sternite of male deeply incised on middle of hind margin. Aedeagus feebly undulate in lateral view, not bulbous before apex, with broad and obtuse longitudinal ridge on underside; deep impression of upperside does not reach the apex (Fig. 7). Spermatheca thin, with very long, thin and clubbed ductus (Fig. 10). Body length of d 12.6 mm, of ¢ 11.3 mm.

2.1.3 Key to species of Clytra maxima-group

1 Upperside pubescent. Prothorax densely punctate. Elytra not shining. Body cylindrical Stun We en en BF PD ONE See aE TES ce 2

STUTTGARTER BEITRÄGE ZUR NATURKUNDE Ser. A, Nr. 691

AN i j

6 7

Figs.5-7. Clytra spp., aedeagus lateral, dorsal and ventral. - 5. C. maxima. 6. C. scutellaris. 7. C. camerunica n. sp.

nl oi

Upperside not pubescent, or only apical slope of elytra finely pubescent ............ 4 Prothorax bare, moderately shining. Extreme apex of elytra narrowly black. Body length 9.2 mm. South Cameroon [Possibly a local form of C. pubipennis] ....C. sp. B

Protharax nubescentedull sat ary) Mee Se eats a a ee ED abe ene 3 Only extreme apex of elytra narrowly black (Fig.1). Body length 11.0-11.5 mm. - Cameroons Lean Ga: chen ence deed seigt abet are Tiaras carmela ie tats C. pubipennis n. sp.

Apical half of elytra black (Fig. 2), humerus with feeble traces of a dark spot. Body length 10.5 mm. West Africa (Uelleburg) [Possibly a local form of C. pubipennis] ...C. sp. A Apical slope of elytra pubescent; elytra not shining, with black apical half, as in Fig. 2. Prothorax densely punctate. Body cylindrical. Body length 9.4 mm. - Congo (Bambe-

sa) [1 2 examined; possibly a local form of C. pubipennis] .................- C. sp. C Elytra bare and shining. Prothorax not densely punctate ...... 222222222 nern: 5 Elvira withllarge humeral spot an ne a a a a a a 6 Elytra without humeral spot and postmedian band ........... 000s sees eee eee ees 8

Postmedian band of elytra strongly reduced or absent, extreme apex black. Body length 9-12 mm. Angola (Bimbi) [Very possibly identical with C. lacerofasciata Quedenfeld] Aye cet nn. LE Freshest ots Oe ste east te etcees C. nigrohumeralis Pic, 1939

MEDVEDEV, AFRICAN CLYTRINAE )

Figs. 8-10. Clytra spp., spermatheca. 8. C. pubipennis n.sp. 9. C. lacerofasciata. 10. C. ca- merunica Nn. sp.

= Elytra with well developed postmedian band 6. 4 ees eek ee ea 7 7 Extreme apex of elytra narrowly black (Fig. 3). - Body elongate ovate. Spermatheca as in Fig. 9. Body length 11.3-12.3 mm. - Guinea?, Cameroon [The species was described from “Guinea, Kassai”, but it seems that “Kassai” means the river Kasai in Congo] [= C.

WIONATAL Pie 1939 Di SVs erinnere C. lacerofasciata Quedenteld, 1888 Extreme apex of elytra not black. “West Africa” [1 2 examined; possibly identical with C tacerofasceta Ouedenteld) C62 cp tasey tg A eee coals shales tases C. sp. D

8 Apical third of elytra black (Fig. 4). Underside of aedeagus with acute longitudinal ridge and bulbous on each side before apex (Fig. 5). - Body length 9.5-12.5 mm. Sierra Leone (Rhodomp), Guinea (Old Calabar) [According to the original description, males should have only the extreme apex of the elytra black, whereas the apical quarter is black in the

6 STUTTGARTER BEITRÄGE ZUR NATURKUNDE Ser. A, Nr. 691

females; I have studied a series of males, including types, and they all have the apical third

Ob qidatter black || Mactan aa en Soke area etree nee as C. maxima Jacoby, 1895

Only extreme apex of elytra black. Underside of aedeagus with broad and obtuse longi- tudinal ridge nor bulbous. before pH. I ce cde Mania die death ote th a! Pah © 9

9 Scutellum and elytra red fulvous (terracotta). - Congo (Lukulola) [dd unknown] ..... Seesresnptere ce, de dt Raine! ye Bot rem cans Wen yin peer ee dnd Sale wey ale Reese Bara ed C. sp. E

=. „Seutellum black, elytra tulvous fae.) cn tg Mer Sites re ae 10

10 Species from East Africa. Body cylindrical, elytra distinctly punctate. Aedeagus (Fig. 6) strongly undulate in lateral view, the deep impression of the upperside reaches the apex. Body length 9.7-13 mm. - Uganda, Tanzania, Kenya(?) [A type specimen from Beni was studied] [= C. weisei L. Medvedev, 1969 n.syn.] ............ C. scutellaris Weise, 1912

Species from West Africa. Body elongate ovate, elytra finely punctate. Aedeagus (Fig. 7) feebly undulate in lateral view, the deep impression of the upperside does not reach the apex. Body length 11.4-12.7 mm.— Cameroon ..............4-. C. camerunica n. sp.

2.2 Coptocephala imitans-group 2.2.1 General

This small group of species is characterized by the dull and fulvous upperside, usually with more or less developed black patterns, and the broad head of the male, which is as wide as the anterior margin of the prothorax and usually bicoloured. Aedeagus more or less of the same type in all species, with elongate triangular apical part.

Types of all species, except C. occipitalis Jacoby, were investigated by MEDVEDEV (1992, 1993).

2.2.2 Coptocephala pubescens n.sp. (Fig. 24)

Holotype (d): Guinea, Tabuna valley, 15.11.1984, leg. S. Murzın (LM). Paratypes: Guinea-Bissau [Portugal Guinea], leg. Ferm, 1 d (LM), 1 2 (SMNS).

Description

Fulvous; antennae except 3 basal segments, 2 small round spots in middle of pro- thorax, postbasal (sometimes strongly reduced) and preapical spot of elytra, under- side and sometimes legs black.

3. Body narrow and elongate, parallel-sided. Head as wide as prothorax, frons and clypeus punctate, anterior margin of clypeus arcuately emarginate, vertex im- punctate, frons broad, 2.8 times as wide as diameter of eye, with large groove in middle. Antennae serrate from the 4 segment on. Prothorax twice as wide as long, with very short pubescence in holotype, smooth in paratype, distinctly punctate, shining, with impression on each side behind middle. Scutellum triangular, convex, punctate. Elytra 1.8 times as long as wide, parallel-sided, with short erect pubes- cence, densely punctate, interspaces microsculptured. Anterior legs a little longer than mid and hind ones. Aedeagus as in Fig. 24. Body length 6.6-7.5 mm.

@. Head narrower than prothorax which is 1.7 times as wide as long. Elytra 1.6 times as long as wide. Body length 6.9 mm.

Remarks It seems that the anterior elytral spot is well developed in the female and strongly reduced in the male.

as

N

MEDVEDEV, AFRICAN CLYTRINAE

en io.) @ «

Figs. 11-19. Coptocephala spp., pattern of prothorax. 11-14. C. maculaticollis. 15, 16. C. occipitalis. 17. C. sp. A. 18, 19. C. sp. B.

—_

N

wo

aN

2.2.3 Key to species of Coptocephala imitans-group

Elytra pubescent. Body more elongate and parallel-sided. Prothorax with 2 black spots in middle. d: Anterior margin of clypeus arcuately emarginate. Body length 6.6-7.5 mm. Gumeir@innea-Bssaln eh tan. a ee en ee PO a ea C. pubescens n. sp. Elytrasiop pubescent. Dody- more robust Ar. 6 ss? et sea sc alin cows Batya oth Bee een 2 Suture of elytra with narrow but very distinct black stripe. Head fulvous with black spots near eyes, sometimes connected. Prothorax with large spot on each side, connected along basal margin, rarely with 5 spots. Elytra with broad central stripe from humerus to apical slope. Underside and legs black or femora fulvous beneath. Aedeagus as in Fig. 25. Body

length’ 6.5=9 11m. Tanzania I ehe eat C. kigomana Burgeon, 1942 Suture of elytra fulvous. Head black with fulvous clypeus or fulvous with black spots near EVER en ee are ae ne ER ie 3

Prothorax with very dense and coarse punctures, interspaces smaller than punctures, con- vex, more or less rugose. Head black with fulvous clypeus and (sometimes) frons; pro- thorax with central black spot, sometimes more or less divided; elytra with humeral spot and central longitudinal patch black, underside and legs black. Very rarely upperside en- tirely and legs partly fulvous (1 specimen from Musosa, Congo). ¢: Anterior margin of clypeus with deep arcuate emargination; aedeagus as in Fig. 26. Body length 7.0-7.8 mm. CONGO nk oi ghia tee ketenes en here ge a C. opaca Burgeon, 1942 Prothorax finely punctate, with interspaces flat and much larger than punctures ....... Anterior margin of clypeus with quadrangular or trapeziform emargination in male. Ful- vous, posterior part of head black; prothorax with central black spot, sometimes more or less reduced (Figs. 11-14); elytra with black stripe from humerus to apical slope, underside and legs black, but tibiae often more or less fulvous. Aedeagus as in Fig. 27. Body length 5.5-6.2 mm. Cameroon, Central African Republic, Sudan, Congo ................... De hg oe BEE ee en eR C. maculaticollis Pic, 1927 Anterior margin of clypeus with arcuate emargination. Prothorax without central black SP OG 2 A ee tek Br NEN ER PREMIER Fr eS 5

8 STUTTGARTER BEITRÄGE ZUR NATURKUNDE Ser. A, Nr. 691

ul

Figs. 20-23. Coptocephala spp., pattern of elytron. 20, 21. C. occipitalis. 22, 23. C. sp. B.

5 Prothorax without black spots. - Anterior margin of clypeus with deep, almost semicircular emargination in male. Elytra with black humeral spot and longitudinal spot in middle, some- times connected with humerus; rarely elytra unspotted. Body length 5.6-6.6 mm ........ 6

=, Prothorax swith 2—5 black spotie.s iii Fedde deals Berater: 7

6 Head fulvous with black stripes along inner margin of eyes. Legs fulvous or black with ful- vous tibiae. Aedeagus as in Fig. 28. - West Africa: Dahomey, Ivory Coast, Togo, Benin, Niger, Congo [= C. binotaticeps Pic, 1927, C. juncta Pic, 1927 n.syn., C. diversiceps Pic, 1927, C. dartevellei Burgeon, 1942 n.syn., C. villiersi Pic, 1950) ......... eee eee eee eee

PP ne SR ee dey Ree Rae tet A el ER ER LE. C. imitans imitans Jacoby, 1895

Head fulvous with black vertex. Legs black or with partly fulvous tibiae. East Africa: Ta ZANT Aas godess par sense reese tess oats okey oh shea eee Sa) eens C. imitans opacipennis Weise, 1902

7 Elytra with black humeral and postscutellar spot and elongate patch in center (Figs. 20, 21). Head fulvous, sometimes with narrow stripe on inner margin of eyes or with 2 small spots on vertex black. Prothorax with 2 or 4 black spots arranged in transverse row in middle (Figs. 15, 16). Underside black, legs usually entirely fulvous. Spots of upperside sometimes reduced or postscutellar spot of elytra connected with elongate patch. Anterior margin of clypeus with shallow emargination in male. Body length 5.8-6.7 mm. Congo, Zambezi, TAZA Tce rs Ay ete ce Mes Nhe ee ge C. occipitalis Jacoby, 1903

Elytra without prescutellar spot. Head black with fulvous clypeus .................. 8

8 Prothorax with 4 spots arranged in arcuate row and small spot before scutellum black (Fig. 17). Elytral pattern as in C. maculaticollis Pic. Body length 5.7-5.8 mm. Congo (Kafakumba), Tanzania (Kigonsera) [dd unknown] [Possibly identical with C. imitans Ja- CODY | le eee Lehe. eke etait hohe Ne a (cs RE EEL ER AIR ER AR C. sp. A

Prothorax with 2 spots at sides and sometimes with small spot before scutellum (Figs. 18, 19). Humeral spot of elytra elongate and sometimes connected with central spot (Figs. 22, 23). d: Anterior margin of clypeus with rather deep arcuate excavation, aedeagus identical with C. imitans Jacoby. Body length 5.4-5.8 mm. Congo (Musosa) [Possibly only colour Form OLG tan ACODy |e a A eae sae a cet, ae nn C. sp. B

MEDVEDEV, AFRICAN CLYTRINAE 9

24

26 27 28

Figs. 24-28. Coptocephala spp., aedeagus dorsal (25 also lateral). - 24. Coptocephala pubescens n.sp. 25. C. kigomana. 26. C. opaca. 27. C. maculaticollis. 28. C. imitans.

3 References

Mepvepev, L. N. (1992): Type specimens of the subfamily Clytrinae (Coleoptera, Chryso- melidae) from the Maurice Pic collection of the Museum National d’Histoire Natu- relle, Paris. Annales de la Société entomologique de France (nouvelle Série) 28: 15-25.

Mepvepev, L. N. (1993): New species and a new genus of South African Clytrinae (Coleop- tera, Chrysomelidae). - Annals of the Transvaal Museum 36: 1-8.

MEDvEDEv, L. N. & ERBER, D. (2003): New and poorly known Clytrinae from Southern Af- rica. Part 1 (Insecta, Coleoptera, Chrysomelidae). Mitteilungen aus dem Museum für Naturkunde Berlin, zoologische Reihe 78: 197-206.

Author’s address:

Dr. Lev N. MEDVEDEYV, Severtsov Institute for Ecology and Evolution, Leninsky prospect 33, 119071 Moscow, Russia; e-mail: lev. medvedev@sevin.ru

Manuscript received: 3.X1.2005, accepted: 27.XII.2005.

ISSN 0341-0145

Autoren-Richtlinien: http://www.naturkundemuseum-bw.de/stuttgart/schriften Schriftleitung: Dr. Hans-Peter Tschorsnig, Rosenstein 1, 70191 Stuttgart Gesamtherstellung: Gulde-Druck, 72072 Tübingen