Revision of Genus Leptosomatomyia Theobald, 1905 from Thu, 2013-12-05 12:08

Leptosomatomyia is characterised by the following combinations of characters. Characters that diagnose Leptosomatomyia in the phylogenetic analyses of Reinert et al. (2009) are indicated by an asterisk (*).

ADULTS – Dark mosquitoes; vertex with broad and narrow scales; eyes narrowly separated above antennal pedicels; antenna not strongly verticillate in males, *flagellar whorls with several setae directed more or less dorsally and ventrally and several directed laterally; maxillary palpus very short in both sexes, less than 0.25 length of proboscis in males; scutum with pale-scaled margins, median pale stripe and curved posterolateral pale lines ending at base of wing, pale scaling sometimes reduced in males; acrostichal setae absent; dorsocentral setae present; scutellum with broad and narrow scales; paratergite and postspiracular area with narrow pale scales; upper proepisternum, mesokatepisternum and mesepimeron with large patches of broad pale scales, *1 large patch on mesokatepisternum, *2 patches on mesepimeron; several lower mesepimeral setae present; *base of hindcoxa more or less in line with dorsal margin of mesomeron, *hindfemur without dorsal and apical pale scales, *hindtibia entirely dark-scaled; hindtarsomere 1 as long or slightly longer than tibia; *ungues of all legs simple in both sexes; abdomen of males very elongate. FEMALE GENITALIA – Abdominal segment VIII small, retracted, *seta 2-S inserted lateral and approximately on level with seta 1-S; tergum IX with deep median posterior emargination and wrinkled lateral areas; cercus short, wider distally than at mid-length; postgenital lobe covered with small spicules, apex emarginate; insula tongue-like, with tuberculi near apex. MALE GENITALIA – *Sternum IX without setae and scales; gonocoxite without apical lobe, with large setose sternomesal lobe, *setae on basomesal area of dorsal surface all slender; gonostylus simple, *noticeably broader at mid-length than proximally, *gonostylus/gonocoxite index ≥ 0.73; gonostylar claw short, broad, inserted at apex of gonostylus; claspette absent; aedeagus comprised of 2 lateral plates, each with several teeth; paraproct long, *with apical teeth. LARVAE – *Antenna without spicules, seta 1-A single; *labiogula wider than long; setae 4–7-C multi-branched, *seta 4-C inserted on level with seta 5-C, *seta 7-C inserted approximately on level with seta 5-C; *seta 1-M single; *seta 12-VII inserted approximately on level with seta 13-VII; comb with 4–6 scales in a single row; siphon short, relatively broad, pecten on proximal 0.5, seta 1-S inserted at distal end of pecten; saddle almost complete; anal papillae very long, sausage-shaped. PUPAE – Trumpet without tracheoid area; *seta 5-CT ≤ 1.2 length of seta 4-CT. See Aedini.