Colasposoma subgen. Colasposoma Laporte, 1833

Zoia, Stefano, 2012, Eumolpinae (Coleoptera: Chrysomelidae) of Socotra Island, Insect biodiversity of the Socotra Archipelago (Acta Entomologica Musei Nationalis Pragae 52), pp. 449-501 : 460

Colasposoma subgen. Colasposoma Laporte, 1833

A key to species of the subgenus Colasposoma from Socotra

1 Claws simple, arcuate; antennomere XI reddish; femora and tibiae clearly bicolored; dorsum with very short and dense pubescence; habitus as in Figs. 115–116 ; length 5.7–8.9 mm. ................................................................................................. C. (C.) austerum sp. nov.

– Claws bifid, the inner tooth more or less short; other characters different. ..................... 2

2 Hypomeron shiny, with only a few punctures on margins, bare; dorsum uniformly metallic dark blue, more rarely green; habitus as in Figs. 121–122 ; length 4.3–5.7 mm. ............... ............................................................................................ C. (C.) atrocyaneum sp. nov.

– Hypomeron punctured throughout. ................................................................................. 3

3 Punctures of pronotum and elytra more superficial, surface pubescent at least on sides of pronotum and elytra. ........................................................................................................ 5

– Pronotum and elytra with strong and dense punctation, bare. ......................................... 4

4 Dorsum dark, metallic, unicolored; legs reddish, dark, with more or less evident metallic hue; claws bifid in about their midlength, with inner tooth short; habitus as in Figs. 119–120 ; length 3.6–4.9 mm. .................................................................. C. (C.) purcharti sp. nov.

– Head and pronotum metallic green, elytra yellowish; legs yellowish; claws appendiculate, shortly divided in about their midlength; habitus as in Figs. 129–130 ; length 5.0– 5.8 mm. ................................................................................................ C. (C.) hajeki sp. nov.

5 Elytral punctation fine and superficial, surface nearly bare on elytral disc, with fine pubescence on sides; elytral side (♀) with a raised carina going from humerus to apical slope ( Fig. 36 ); large part of legs reddish; habitus as in Figs. 117–118 ; length 9.3 mm. ............ .............................................................................................. C. (C.) unicostatum sp. nov.

– Elytral surface more strongly punctate, pubescent throughout; elytral side with a low, rounded carina, which starts from humeral callus and reaches apical slope ( Fig. 72 ); a second, shorter carina is near elytral apex; legs metallic. ............................................... 6

6 Punctation in the middle of the frons moderately strong, dense and scarcely confluent; punctures on the pronotal disc more superficial, surface between two punctures usually wider than diameter of a puncture, shiny; elytral pubescence short, uniform, evident; apex of aedeagus as in Fig. 59 ; habitus as in Figs. 123–124 ; length 5.5–8.0 mm. ..................... ..................................................................... C. (C.) brevepilosum brevepilosum sp. nov.

– Punctation in the middle of the frons strong, dense, largely confluent; punctures on the pronotal disc stronger, surface between two punctures narrower than diameter of a puncture; elytral pubescence very short, on the disc scarcely exceeding the depth of the punctures; apex of aedeagus as in Fig. 66 ; habitus as in Figs. 127–128 ; length 5.8–6.8 mm. ............ ................................................................... C. (C.) brevepilosum maritimum subsp. nov.

– Punctation in the middle of the frons strong, dense, largely confluent; punctures on pronotal disc stronger, surface between two punctures narrower than diameter of a puncture; elytral pubescence short, uniform, evident; apex of aedeagus as in Fig. 63 ; habitus as in Figs. 125–126 ; length 5.7 mm (J). ............. C. (C.) brevepilosum orientale subsp. nov.

Figures

Figs. 105–116. Habitus, dorsal and lateral view of: 105–106 – Colasposoma (Falsonerissus) socotranum (Gahan, 1903) (♀, wadi Ayhaft); 107–108 – C. (F.) grande grande (Lefèvre, 1890) (J lectotype); 109–110 – C. (F.) grande insulare subsp.nov.(J holotype); 111–112 – C. (F.) distinguendum sp. nov. (J holotype); 113–114 – C. (F.) villosum sp. nov. (J holotype); 115–116 – C. (Colasposoma) austerum sp. nov. (J holotype).

Figs.117–128. Habitus, dorsal and lateral view of: 117–118 – Colasposoma (Colasposoma) unicostatum sp. nov. (J holotype); 119–120 – C. (C.) purcharti sp. nov. (J holotype); 121–122 – C. (C.) atrocyaneum sp. nov. (J holotype); 123–124 – C. (C.) brevepilosum sp. nov. (J holotype); 125–126 – C. (C.) brevepilosum orientale subsp. nov. (J holotype); 127–128 – C. (C.) brevepilosum maritimum subsp. nov. (J holotype).

Figs. 129–138. Habitus, dorsal and lateral view of: 129–130 – Colasposoma (Colasposoma) hajeki sp. nov.(Jholotype); 131–132 – Erythraella bicuspidata gen. et sp. nov. (J holotype); 133–134 – Macrocoma niedobovae sp. nov. (J holotype); 135–136 – Macrocoma bezdeki sp. nov. (J holotype); 137–138 – M. hulai sp. nov. (J holotype).

Figs. 35–43. 35–36 – Colasposoma (Colasposoma) unicostatum sp. nov. (♀ holotype): 35 – spermatheca; 36 – side of elytron. 37–43 – Colasposoma (Colasposoma) purcharti sp. nov. (37–39, 43:J holotype; 40–41:J, Qualentiah; 42:♀, wadi Ayhaft): 37 – aedeagus, apex, dorsal view; 38 – aedeagus, lateral view; 39 – aedeagus apex, lateral view; 40 – tegmen; 41 – ventral sclerite of sternite IX; 42 – spermatheca; 43 – protibia and tarsus.

Figs. 70–75. 70–72 – Colasposoma (Colasposoma) brevepilosum brevepilosum subsp. nov. (70: J holotype; 71–72: ♀, Zemhon area): 70 – protibia and tarsus; 71 – spermatheca; 72 – elytron, lateral view. 73 – Colasposoma (Colasposoma) brevepilosum orientale subsp. nov. (J holotype): protibia and tarsus. 74–75 – Colasposoma (Colasposoma) brevepilosum maritimum subsp. nov. (74: J holotype; 75: ♀, wadi Ayhaft): 74 – protibia and tarsus; 75 – spermatheca.

Figs. 59–69. 59–62 – Colasposoma (Colasposoma) b. brevepilosum sp. nov. (59–60: J holotype; 61–62: J, Firmihin): 59 – aedeagus, apex, dorsal view; 60 – aedeagus, lateral view; 61 – tegmen; 62 – ventral sclerite of sternite IX. 63–65 – Colasposoma (Colasposoma) brevepilosum orientale subsp. nov. (J holotype): 63 – aedeagus, apex, dorsal view; 64 – aedeagus, lateral view; 65 – ventral sclerite of sternite IX. 66–69 – Colasposoma (Colasposoma) brevepilosum maritimum subsp.nov.(66–67, 69:J holotype; 68:J, wadi Ayhaft): 66 – aedeagus, apex, dorsal view; 67 – aedeagus, lateral view; 68 – tegmen; 69 – ventral sclerite of sternite XI.