Colasposoma (Colasposoma) brevepilosum maritimum, Zoia, 2012

Zoia, Stefano, 2012, Eumolpinae (Coleoptera: Chrysomelidae) of Socotra Island, Insect biodiversity of the Socotra Archipelago (Acta Entomologica Musei Nationalis Pragae 52), pp. 449-501 : 473-474

Colasposoma (Colasposoma) brevepilosum maritimum subsp. nov.

( Figs. 66–69 , 74–75 , 127–128 , 142 )

Type locality. Yemen, Socotra Island, Noged plain, Qaareh (waterfall), 12°20′10″N, 53°37′56″N.

Type material. HOLOTYPE: J, ‘ Yemen, Soqotra Is., 2003 5-6/xii, Noged plain, Qaareh (waterfall), 57 m, N12°20′10″ E53°37′56″ [GPS], David Král lgt.[printed white label]; Yemen – Soqotra 2003 Expedition; Jan Farkač, Petr Kabátek & David Král [printed white label] ; Holotypus Colasposoma (Colasposoma) brevepilosum ssp. maritimum n. S. Zoia det. 2012 [printed red label]’ ( NMPC). PARATYPES (2 spec.): ‘ Yemen, Soqotra Is., 24-26/xi.2003, Wadi Ayhaft , 190 m, N12°36′38″ E53°58′49″ [GPS], David Král lgt.’ (1 ♀ NMPC; 1 J SZCM) .

Description. Habitus as in Figs. 127–128 ; body length of holotype 6.8 mm, of paratypes 6.7 mm (J), 5.8 mm (♀).

Body dark brown to black with some bronze and greenish metallic reflections; head, pronotum and elytra dark bronze, metallic; labrum brown, mandibles black, lightly metallic, palpi yellowish; antennomeres reddish, VII–XI dull, somewhat darkened in ♀ specimen; legs dark brown with some metallic reflections.

Frons convex, with light median impression between eyes, with very fine pubescence in holotype, almost bare in other specimens, with close, moderately strong punctures, partially confluent near eyes and in median impression of frons; surface between punctures convex, shiny; clypeus not separated from frons, bare, punctate, with fine microreticulation and finer punctation distally, distal border concave. Antennomere I nearly 1.6 times longer than II and nearly twice as wide, feebly bent on outer side; antennomere II two times longer than wide; antennomere III nearly as long as I and nearly three times longer than wide; antennomeres IV and V subequal to III; antennomere VI shorter than V; antennomeres VII–X dull, feebly widened, VII little longer and wider than following ones; antennomere XI 1.2 times longer than X, little wider.

Pronotum 2.1–2.2 times wider than long (3.5 × 1.7 mm in holotype); convexity of surface interrupted before distal border by transversal impression, more evident in males; pronotal sides arched and margined throughout, widest in basal fourth in males, in basal third in female; base wider than distal border; angles with small tooth with bristle, distal angles visible from above; surface with moderately strong, close punctation, punctures stronger and in large part confluent on sides; small longitudinal area without punctures on basal third of disc, in two paratypes this area feebly raised; pubescence very fine, short, more evident on sides.

Scutellum 1.4 times wider than long, rounded, punctured, finely pubescent.

Hypomeron shiny, with relatively strong and spaced punctation, bare; distal border of prosternum regularly concave throughout, finely margined; prosternum divided from hypomera by evident notosternal suture, more impressed distally; prosternum in midline little longer than wide between procoxae, feebly convex, punctate, with long whitish pubescence. Mesoventrite one third narrower than prosternum between procoxae, its distal edge concave, surface finely punctured, pubescent; mesepimera not punctured, bare. Metaventrite finely transversely rugose, finely punctured on sides, with long and thin pubescence, distal border shortly incised in middle; metacoxae as spaced as mesocoxae; metanepisterna nearly 4 times longer than wide, with close punctation and fine pubescence.

Elytra 1.2–1.3 times longer than wide at humeri (4.8 × 4.1 mm in holotype); surface almost regularly convex in males, with subhumeral impression on sides and feeble impression on basal third laterally on disc; in males punctation relatively fine and close, stronger only on sides; surface between punctures smooth, flat, with some micropunctures on disc; in females surface more strongly impressed in basal third, with rounded low lateral carina, from humeral callus up to apical slope, and with second shorter carina near elytral apex; punctation in females not significantly different from that of males; apices at slight acute angle; humeri lightly prominent in males, stronger in females, finely punctured; elytral pubescence very short and thin on disc, more evident on sides. Epipleura wide at base, moderately wide till base of third abdominal sternite, then gradually tapering to elytral apices, strongly angulated with elytral surface, not punctured, smooth, shiny, almost bare except for fringe of very small setae along outer border.

Legs moderately long; femora unarmed, feebly swollen, more so in male profemora; tibiae straight, protibial surface rough in distal half in males ( Fig. 74 ); protarsomeres III widened in males. Claws bifid in about one third of their length, with short inner tooth.

Dorsal side of abdomen poorly sclerotized; pygidium sclerotized, its apex rounded and pubescent; abdominal ventrites roughly punctured and pubescent.

Aedeagus as in Figs. 66–67 ; two very large tracheae enter the median lobe from basal hood.

Spermatheca as in Fig. 75 ; coxites short, conical, sclerotized; spiculum ventrale relatively long and thin; vagina without any sclerotization.

Differential diagnosis. A subspecies of C. (C.) brevepilosum sp. nov. characterized by stronger punctation of frons and pronotum, shorter pubescence on dorsum and different shape of the apex of aedeagus.

Etymology. Collecting localities are at low altitude, not far from the sea; the name maritimum emphasizes the altitude different from the localities of the nominal form.

Figures

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.

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.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. 139–144. Distribution maps of the species based on the studied material (in Fig. 142, question marks indicate a possible montane form of C. (C.) brevepilosum sensu lato, see species description).