Stefano Zoia, On Odontiomorpha with description of two new species On Odontiomorpha Jacoby, 1900 with description of two new species (Coleoptera: Chrysomelidae)*

● Stefano Zoia

Abstract. A redescription of Odon- Zusammenfassung. Odontiomorpha Riassunto. Viene ridescritta Odontio- tiomorpha minuta Jacoby, 1900 (Na- minuta Jacoby, 1900 aus Natal wird morpha minuta Jacoby, 1900 (Natal) e tal) and a description of O. capensis wiederbeschrieben, O. capensis sp. nov. descritte O. capensis sp. nov. (Cape Pro- sp. nov. (Cape Province) and O. cuprina und O. cuprina sp. nov., beide aus der vince) e O. cuprina sp. nov. (Cape Pro- sp. nov. (Cape Province) are provided; Kap-Provinz Südafrikas, werden neu vince); viene brevemente discussa la the position of the Odontiomor- beschrieben. Die systematische Stel- posizione del genere Odontiomorpha pha Jacoby, 1900 is briefly discussed lung von Odontiomorpha Jacoby, 1900 Jacoby, 1900 evidenziandone le affini- and its relationship to Odontionopa wird kurz diskutiert und ihre Nähe zu tà con Odontionopa Chevrolat, 1836. Chev rolat, 1836 is pointed out. Odontionopa Chevrolat, 1836 heraus- gestellt.

Key words. , Odontiomorpha, Odontionopa, new species, South Africa, Afrotropical Region.

Introduction Odontiomorpha Jacoby, 1900 straight, continuous with prosternal an- terior margin; prosternum a little longer Describing the new genus Odontiomorpha, Clavareau, 1914: 65. than wide, transversely convex in the for the new species O. minuta, Jacoby Selman, 1965: 172 (Odontomorpha, sic!). middle, finely pubescent. Mesothoracic (1900) arranged it in a group, namely Selman, 1972: 15 (Odontomorpha, sic!). episterna triangular; mesosternum with Odontionopinae (following Chapuis 1874 distal margin concave; metathoracic and Lefèvre 1885), which included the Type species. Odontiomorpha minuta Ja- epimera oblong, moder ately wide African genera Odontionopa Chev rolat, coby, 1900. (about four times longer than wide), pu- 1836, Obelistes Lefèvre, 1885 and Phascus bescent; metasternum with distal border Lefèvre, 1884. Odontiomorpha was later Diagnosis. of small size impressed in the middle. Abdomen dor- considered by Selman (1965, 1972) in the (1.8–2.9mm) with oblong body, the sally poorly sclerotized; pygidium scle- tribe Colaspoidini due to the “pygidium prothorax narrower than the elytra, the rotized, with a longitudinal median grooved medially”, together with the latter oblong, with humeri well devel- groove (Figs 3, 7, 11), covered by the genus Platycorynus Chevrolat, 1836. The oped, moderately protruding. Head or- elytra; sternites finely pubescent. Elytra description of two new species of Odon- thognathous, scarcely retracted into the either glabrous or pubescent, irregular- tiomorpha gives me the opportunity to re- prothorax; eyes relatively wide and ly punctured, only at sides with traces consider the position of this genus. prominent, intere; frons punctured, with of rows of punctures; epipleura moder- a fine pubescence, without any sulcus ately wide, tapering to the elytral Depositories near inner border of the eyes; labrum apex. Metathoracic wings fully devel- with distal margin concave or straight; oped. Legs moderately robust, with MCZH – Museum of Comparative Zoolo- mandibles short, robust; palpi with the very fine pubescence; femora moderate- gy at Harvard University, Cambridge, last joint twice the second in length. ly widened, each with a small median Massachusetts, USA; NHML – Natural First antennomere oblong, second ob- tooth; pro- and mesotibiae arched; History Museum, London, England; MD- long, a little shorter than the third, third meso- and metatibiae emarginate distal- coll (Mauro Daccordi coll., Verona, Italy; to sixth slender, seventh to eleventh ly; tarsal claws appendiculate. Aedeagus MSNM – Museo Civico di Storia Naturale moderately enlarged. Pronotum trans- tube-like, strongly flexed dorso-ventral- di Milano, Italy; SZcoll – Stefano Zoia verse, almost so wide at base as at distal ly; apex wide and robust, with distal coll., Milano, Italy. border, sides curved throughout; prono- margin more or less rounded; tegmen tal base finely bordered, sides with mod- open dorsally, the two arms hardly erately wide and finely serrate border, reaching the sides of the median lobe; reaching the distal corners; pronotum ostium dorsal, subovate. Spermatheca * This research received support from the SYN- densely punctate, with a fine pubes- C-shaped; spermathecal ductus not scle- THESYS Project http://www.synthesys.info/ cence, in the known species with a rotized, moderately long; spermathecal which is financed by European Community Research Infrastructure Action under the FP6 transverse impression in the basal third, gland tubular, thin, longer than the „Structuring the European Research Area“ Pro- almost reaching the pronotal sides; spermathecal body; vagina without in- gramme. anterior margin of proepisterna nearly ner sclerotized plates. Styli small, coni-

39 Entomologische Zeitschrift · Stuttgart · 121 (1) 2011 cal, sclerotized. A relatively long and sternum, dorsum glabrous, pygidium pus 2.5 mm (length range of the exam- thin spiculum gastrale is present. without median sulcus. ined specimens 2.3–2.9 mm). Habitus as in Figs 1–2. Distribution. Eastern South Africa. Key to species Coloration. Body pitch-black, without Comparative notes. The sulcus on the 1 Head and pronotum with a very fine metallic reflections; head, pronotum and pygidium (Figs 3, 7, 11) is in relation to pubescence; elytra almost bare, only elytra black with cupreous or bronze presence of an internal raised carina along at sides and on the apical slope the metallic reflections; labrum, mandibles the elytral suture, on its distal part (Figs punctures bearing very short hairs vis- and legs reddish, palpi yellowish; first to 4, 12), maintaining the elytral coapta- ible at high enlargement; elytra wide fifth antennomere yellowish, sixth to tion. In Odontiomorpha this carina is con- (length/width ratio: 1.3), moderately eleventh more or less darkened, their base nected to a similar structure along the impressed on the basal third, without usually yellowish. distal part of the elytral external border, raised areas; profemora arched; in the inner side (Figs 4, 12), which ulte- aedeagus and spermatheca as in Figs Head. Frons moderately convex with a riorly limits the abdominal movements 15–19 . . . . O. minuta Jacoby, 1900 thin longitudinal median sulcus; surface giving a better fastening of the set. The – Dorsum obviously pubescent . . . . . 2 finely microreticulated, punctation hard- apomorphic presence of a sulcus on the ly visible; clypeus almost impunctate, pygidium developed independently in 2 Dorsum with relatively long golden with a fine microreticulation; pubes- different Eumolpinae groups; it charac- pubescence; elytra oblong (length/ cence whitish to pale yellowish, fine, rel- terizes some genera at present ranged in width ratio: 1.4), strongly impressed atively long, bent, like the one on the different “sections” of Eumolpinae, as on the basal third and with a longitu- pronotum. First antennomere twice briefly discussed by Medvedev (2005). dinal, not punctured, shiny low carina longer than wide, moderately bent, sec- In the Afrotropical the character was re- on the apical slope of each elytron; ond nearly twice longer than wide, fee- ported only for Odontiomorpha and elytral sides almost straight from base bly bent on the outer side, third thinner, Platycorynus; in the latter the inner cari- to midlength; protibiae longer, feebly three times longer than wide, subequal na along the lateral elytral border is to- bent, almost straigth near base; to fourth, fifth a little shorter than the tally missing, while the one along the su- aedeagus and spermatheca as in Figs fourth and longer than the sixth, seventh ture is stronger (Fig. 14); it corresponds 20–22 ...... O. capensis sp.nov. to eleventh wider, nearly twice longer to a more complex median sulcus of the – Dorsum with shorter, bent, light pu- than wide. pygidium (Fig. 13), showing a substan- bescence; elytra wide (length/width tial different organization in these gen- ratio: 1.3), feebly impressed on the Thorax. Pronotum 1.5 to 1.6 times wider era; hence the inclusion of Odontiomor- basal third, the apical slope scattered- than long, highly convex along the distal pha in a group close to Patycorynus as ly punctured throughout, without border, less so at base, hence the lateral done in the past (Selman 1965, 1972) raised areas; elytral sides bent through - borders regularly inclined downwards has no support, stating that no other out, clearly widened from base to from the base to the distal corners; later- synapomorphies can be found to support midlength; protibiae shorter, bent al borders moderately wide, finely ser- this theory. throughout; spermatheca as in Fig. 23 rate; surface with a transverse arcuate ...... O. cuprina sp.nov. impression in the basal third, almost The position of Odontiomorpha near reaching the pronotal sides; another less Odontionopa has to be re-evaluated in re- Odontiomorpha capensis sp. nov. evident impression near the pronotal dis- lation to several synapomorphies: distal tal edge, more evident at sides (Fig. 1). border of proepisterna continuous with Holotype. `, “South Africa (Cape Prov.) Surface finely and densely punctate, the prosternal one, division between pro - Stormriver, Tsitsikamma-berge, 1.XII. shiny between the punctures, with sparse episterna and prosternum well marked 1981, Klapperich leg. [white printed and moderately long pale yellowish pu- by a sulcus (deeper in Odontiomorpha) label]; Holotypus Odontiomorpha ca pen - bescence. Scutellum oblong, pubescent. and by a different level of the two, well sis n. sp., S. Zoia det. 2010 [red printed Elytra oblong (length/width at humeral separated coxae, appendiculate claws, label]” (NHML). level = 1.4) with a strong impression on last joint of labial palps almost twice the the basal third at both sides of the discus; penultimate, elongated second anten- Paratypes. 37 ex., South Africa (Cape Prov.) sides subparallel (males) or feebly widen - Stormriver, Tsitsikamma-berge, 1.XII.1981, Klap- nomere (although clearly shorter than ed (females) from humera to the distal perich leg. (31 ex. SZcoll; 3 ex. MDcoll; 3 ex. the third), clypeus continuous with frons, MSNM); 1 ex., South Africa, Cape Prov., 10 km N third, then regularly curved to the apices, head without any sulcus along the inner Knysna, 430 m, 6.II.1995, S. Zoia leg. (SZcoll); which form a right angle; humeri promi- border of eyes, elytra irregularly punc- 4 ex., South Africa, Western Cape, Swellendam, nent, covering the elytral sides in dorsal tured, abdomen dorsally poorly sclero- 19.XI.2007, C. Giusto E. Colonnelli G. Osella view; punctation strong, close, irregular, tized, aedeagus strongly bent dorso ven- (SZcoll); 3 ex., South Africa, Cape Prov., road Uni - partially confluent near the humera, with ondale-Knysna, 6–15 km N Knysna, 170–300 m, trally with wide, rounded apex. 2.XI.1993, P. A. Audisio leg. (SZcoll) traces of arrangement in rows near the elytral sides; surface between the punc- Odontionopa mainly differs from Odon- Derivatio nominis. The name refers to tures shiny, moderately convex on the tiomorpha in body size (Odontionopa the Cape Province, original land of this discus; a longitudinal, not punctured, > 3.5 mm; Odontiomorpha < 3.0 mm) and species. shiny low carina is present on the apical habitus, in meso- and metatibiae not slope of each elytron in both sexes. Sur- emar ginated near apex, narrower pro - Description. Body length of the holoty- face pubescent, each puncture with a yel-

40 Stefano Zoia, On Odontiomorpha with description of two new species

Figs 1–7. New species of Odontiomorpha. – 1–4. Odontiomorpha capensis sp. nov. 1. Holotypus, dorsal view. 2. Holotypus, lateral view. 3. Pygidium (paratype). 4. Elytral apex, inner view (paratype). – 5–7. Odontiomorpha cuprina sp. nov. 5. Holotypus, dorsal view. 6. Holotypus, lateral view. 7. Holo - typus, pygidium.

41 Entomologische Zeitschrift · Stuttgart · 121 (1) 2011 lowish, relatively long, adpressed hair. wider than the fourth, sixth shorter, sev- Holotype. “Type H.T. [white printed Epipleura not clearly widened proximal- enth to tenth wider, nearly 1.5 times round label with red border]; Malvern, ly, nearly of the same width from the longer than wide, eleventh about twice Natal 8.97, 8532 [handwritten white base to the end of the second abdominal as long as wide. label]; Jacoby Coll. 1909-28a [printed sternite, then gradually restricted to the white label]; Odontiomorpha minuta elytral apex. Thorax. Pronotum 1.6 times wider than Jac. [blue handwritten label]” (NHML). long, highly convex along the distal bor- Abdomen. Pygidium without a distinct der, less so at base, hence the lateral bor- Other examined material. 1 `, Malvern, Natal, distal raised area, the sulcus extending to ders regularly inclined downwards from viii.1897, 8533 (same as in Holotype); Odon- tiomorpha minuta Jac. [hand written blue label, over the mid-length of the pygidium (Fig. the base to the distal corners; lateral bor- same as in holotype]; Natal, Malvern, viii.1897, Sir 3). Aedeagus as in Figs 20, 21, strongly ders moderately wide, finely serrate; sur- G.A.K. Marshall (NHML; this is a type speci- bent distally. Spermatheca (Fig. 22) with face with a superficial transverse arcuate men from Jacoby’s collection); 1 ex., Malvern ductus relatively long and in a large part impression in the basal third, not reach- Natal 15.8.92[?], Jacoby 2nd Coll.; minuta Jac.; narrowly spiralled; spermathecal gland ing the pronotal sides (Fig. 5). Surface Type 9732 (images on: http://insects.oeb.harvard. longer than the spermathecal body. densely punctate, shiny between the edu/MCZ/FMPro?-DB=Image.fm&-Lay=web& Format=images.htm&Species_ID=9889&-Find) punctures, with moderately long silvery (MCZH); 1 ex., Malvern, N[atal], 8-1900 (NHML); Diagnosis. Dorsum with relatively long pubescence. Scutellum oblong, densely Malvern Natal (MDcoll); 10 ex., South Africa, golden pubescence; elytra oblong (length/ pubescent. Elytra oblong (length/width Na tal, Weza, Ngele Forest, m 1200–1550, 30° width ratio: 1.4), strongly impressed on at humeral level = 1.4) with feeble im- 31’ S, 29°48’E, indig. forest, 7/8.XII.1995, A. De the basal third and with a longitudinal, pression on the basal third at both sides Biase leg. (7 ex. SZcoll; 3 ex. MSNM); 8 ex., idem, not punctured, shiny low carina on the of the discus; sides bent, clearly widened M. Biondi leg. (SZcoll); 2 ex., idem, P. Audisio leg. (SZcoll); 1 ex., South Africa, Natal, Weza, apical slope of each elytron; elytral sides from humera to midlength, then regular- Lorna Doone Forest, m 1100, 30°33’S, 29°43’E almost straight from base to midlength; ly curved to the apices, which form an indig. forest, 6.XII. 1995 A. De Biase leg. (SZ- protibiae relatively long, feebly bent, al- angle less than 90°; humeri prominent, coll); 1 ex., idem, P. Audisio leg. (SZcoll). most straigth near base; aedeagus and covering the elytral sides in dorsal view; spermatheca as in Figs 20–22. punctation strong, close, irregular; sur- Redescription. Body length of the holoty- face between the punctures shiny, mod- pus 1.8 mm (length range of the exam- Odontiomorpha cuprina sp. nov. erately convex; the surface on the apical ined specimens: 1.8–2.7 mm, see note slope has a few short not punctured below). Habitus as in Figs 8, 9 (holoty- Holotype. ´, “South Africa: W Cape, stripes. Surface pubescent, each punc- pus) and 10. Robinson Pass - m 850, 33.52.40S 22.01. ture with a silvery, moderately long, bent 85E, 6.V.2005 - E. Colonnelli [white hair. Epipleura moderately widened Coloration. Body pitch-black, without printed label]; Holotypus Odontiomorpha proximally, gradually restricted to rear, metallic reflections; head, pronotum and cuprina n. sp., S. Zoia det. 2010 [red evanesced before the elytral apex. elytra metallic, dark greenish to dark printed label]” (NHML). cupreous, usually with greenish to bluish Abdomen. Pygidium with a distinct shiny reflections; mouth parts and legs yellow Derivatio nominis. The name refers to distal area, the median sulcus evanescing or reddish; first to fifth antennomere yel- the metallic color of the dorsum in this at midlength of the pygidium (Fig. 7). lowish to reddish, sixth at least partially species. Spermatheca (Fig. 23) with ductus rela- darkened, seventh to eleventh more or tively long and in a large part spiralled; less darkened. Description. Body length of the holotypus spermathecal gland longer than the sper- 2.5 mm. Habitus as in Figs 5, 6. mathecal body. Head. Frons moderately convex, with a thin longitudinal median sulcus, some- Coloration. Body pitch-black, without Male. Unknown. times evanescing; surface with fine punc- metallic reflections; head, pronotum and tation and microreticulation; clypeus elytra metallic cupreous; labrum, man - Diagnosis. Dorsum with shorter, bent, with fine punctation, sometimes almost dibles, palpi and legs reddish, tarsi red- light pubescence; elytra wide (length/ smooth; pubescence white, fine, bent. First dish, the last joint and claws in large part width ratio: 1.3), feebly impressed on antennomere twice longer than wide, black; first to fifth antennomere yellow- the basal third, the apical slope scat- feebly bent, second 1.5 times longer than ish, sixth to eleventh darkened. teredly punctured throughout, without wide, third longer and thinner than the raised areas; elytral sides bent through- second, subequal to fourth and fifth, Head. Frons moderately convex with a out, clearly widened from base to mid- sixth shorter than the fifth, seventh to thin longitudinal median impression; length; protibiae bent throughout; sper- tenth wider, 1.3 times longer than wide, surface punctate and finely microreticu- matheca as in Fig. 23. eleventh 1.7 times longer than wide. lated; clypeus punctate, shiny; pubes- cence silvery, fine, bent, like the one on Odontiomorpha minuta Thorax. Pronotum 1.6/1.8 times wider the pronotum. First antennomere 1.2 Jacoby, 1900 than long, highly convex along the distal times longer than wide, second nearly border, less so at base, hence the lateral twice longer than wide, feebly bent on Odontiomorpha minuta Jacoby, 1900: borders regularly inclined downwards the outer side, third thinner, more than 239, pl. XX fig. 6; from the base to the distal corners; later- three times longer than wide, subequal Odontiomorpha minuta, Clavareau, al borders entire, finely serrate; surface to fourth, fifth so long as and a little 1914: 65. with a transverse arcuate impression in

42 Stefano Zoia, On Odontiomorpha with description of two new species

Figs 8–12. Odontiomorpha minuta Jacoby, 1900. 8. Holotypus, dorsal view. 9. Holotypus, lateral view. 10. Specimen from Weza, Ngele Forest, dorsal view. 11. Pygidium (Weza, Ngele Forest). 12. Elytral apex, inner view (Weza, Ngele Forest). – Figs 13, 14. Platycorynus dejeani Bertoloni, 1849 (Kenya, Malindi). 13. Pygidium. 14. Elytral apex, inner view.

43 Entomologische Zeitschrift · Stuttgart · 121 (1) 2011

ae at side of each elytron form low longi- tudinal costae. Surface apparently glab- rous, very small setae can be seen at great enlargement inside the punctures, at least on the apical slope of the elytra. Epipleura wide at base, gradually taper- ing from base to rear, evaneshing near the elytral apices. 16 18 17 Abdomen. Sulcus of the pygidium very short, limited to the distal, more sclero- 15 tized, raised area of the pygidium, evaneshing or totally absent proximally (Fig. 11). Aedeagus as in Figs 17, 18 (specimen of small size from the type lo- cality), and 15, 16 (specimen of bigger size), strongly bent near the base. Sper- matheca (Fig. 19) with ductus relatively long; spermathecal gland longer than the 22 spermathecal body. 23 19 Note. In the examined material there is an evident gap in body size between smaller specimens (1.8–1.9 mm in length) and bigger ones (2.1–2.7 mm in length) with no intermediates. Type material in- cludes both forms: the holotypus is the smallest specimen within the available material, the type in MCZH collection is of big size instead. Despite this differ- ence, I found no other significant charac- ters to divide the two forms; I consider them conspecific, although they are easy to divide at a first sight. Additionally, the smaller specimens are brighter, with the distal transversal impression on the pronotum which is evident only at sides, usually totally absent in the middle; no substantial differences are detected in 21 the aedeagal morphology (compare Figs 20 15, 16 and 17, 18); spermatheca was not examined in the smaller specimens.

Figs 15–23. Genital structures. – 15–19. Odontiomorpha minuta Jacoby, 1900. 15. Aedeagus, dorsal Acknowledgements. Special thanks are view (Weza, Ngele Forest). 16. Aedeagus, lateral view. 17. Aedeagus, dorsal view (Malvern, Natal). due to Sharon Shute (NHML) and 18. Aedeagus, lateral view. 19. Spermatheca (Weza, Ngele Forest). – 20–22. Odontiomorpha capensis Philip D. Perkins (MCZH) for the loan of sp. nov. 20. Aedeagus, dosal view (holotypus). 21. Aedeagus, lateral view. 22. Spermatheca (para - typus from Stormriver, Tsitsikamma-Berge). – 23. Odontiomorpha cuprina sp. nov., spermatheca the type specimens and to Michele Zi - (holotypus). lioli (MSNM) who has produced the SEM pictures to illustrate some aspects of Odontiomorpha and Platycorynus mor- the basal third, almost reaching the pro - on the basal third at both sides of the dis- phology. notal sides, evanescing or not in the mid- cus; punctures inside these impressions dle; another more superficial transversal are usually partially confluent; sides impression is present near the pronotal bent, more or less widened from the base References distal edge, sometimes interrupted in the to mid-length, then regularly curved to Chapuis, F. 1874. Tome dixième. Famille des middle but always evident at sides (Figs the apices which form a right angle; Phy to phages. In. Lacordaire, T. & Chapuis F. 8, 10). Surface finely and densely punc- humeri prominent; punctation strong, (eds) Histoire naturelle des Insectes. Genera tate, with fine microreticulation and white close, irregular, with traces of arrange- des Coléoptères. I–IV, pp 455. Paris. fine pubescence. Scutellum oblong, shin- ment in rows at elytral sides; surface be- Clavareau, H. 1914. Chrysomelidae: 11. Eu - molp inae. In. Junk, W. & Schenkling, S. (eds) ing, glabrous or with few and very small tween the punctures feebly convex on Coleopterorum Catalogus, pars 59, pp 215. W. hairs. Elytra oblong (length/width at the discus, more convex at sides and on Junk, Berlin. humeral level = 1.3) with an impression the apical slope; in females the interstri- Jacoby, M. 1900. On new Genera and Species of

44 Stefano Zoia, On Odontiomorpha with description of two new species

Phytophagous Coleoptera from South and Medvedev, L. N. 2005. A new genus and new Selman, B. J. 1972. Eumolpinae (Coleoptera: Central Africa. Proceedings of the Zoological species of Eumolpinae (Coleoptera, Chryso - Chry somelidae). Exploration Parc National de Society of London 1900: 203–266, 1 tab. melidae) from Turkey. Entomologische Blätter la Garamba. Mission H. de Saeger 55: 1–95. Lefévre, E. 1885. Eumolpidarum hucusque co- 100 (3): 191–196. gnitarum catalogus, sectionum conspectu sys- Selman, B. J. 1965. A revision of the Nodini and tematico, generum sicut et specierum nonnul- a key to the genera of Eumolpidae of Africa ● larum novarium descriptionibus adjunctis. (Co leoptera: Eumolpidae). Bulletin of the Bri - Stefano Zoia, Mé moires de la Société royale des sciences de tish Museum of Natural History (Ent.) 16 (3): via Ponte Nuovo 109/4, I-20128 Milano MI; Liége, 2 série 11: 1–172. 141–174. E-Mail: [email protected]

45