Buvirilia Group

Characters that the Buvirilia Group (as subgenus Buvirilia) in the preferred cladogram of Reinert et al. (2009) are indicated by an asterisk (*). ADULTS – Vertex of head with *broad and narrow decumbent scales (only narrow scales listed in formal description of Buvirilia), numerous long erect forked scales on occiput and vertex; eyes separated by approximately width of 1 corneal facet; antennal pedicel with setae on mesal surface, flagellar whorls of males with numerous long setae directed dorsally and ventrally; maxillary palpus of females dark-scaled with pale apex, maxillary palpus of males with 5 palpomeres, about as long as proboscis, palpomeres 4 and 5 down-turned, numerous long ventrolateral setae on palpomeres 4 and 5 and distally on palpomere 3; proboscis dark-scaled with median ventral patch of pale scales, often forming partial band; scutum with narrow scales, scales more or less sparse, especially on scutal fossa, background scales dark bronze, pale scales forming indefinite pattern on anterior acrostichal, dorsocentral and scutal fossal, supraalar areas and margins of prescutellar bare area, *posterior dorsocentral area without pale stripe, *prescutellar area with scales; anterior and posterior acrostichal setae and anterior and posterior dorsocentral setae present; scutellum with narrow pale scales on all lobes; postpronotal scales, postspiracular scales, *lower proepisternal scales, upper and lower mesokatepisternal scales, lower prealar scales and upper mesepimeral scales present; wing dark-scaled, upper calypter with numerous marginal setae, alula with narrow scales on posterior margin, remigium dorsally with 1–3 distal setae; femora dark-scaled anteriorly with narrow basal pale band; tibiae dark-scaled; fore- and midtarsi with narrow basal pale bands on tarsomeres 1–3, hindtarsus with broad basal bands on tarsomeres 1–5 (*hindtarsomere 1 and *hindtarsomere 2 with basal pale scales); fore- and midungues of females equal, each unguis of pair with 1 tooth, fore- and midungues of males unequal, larger foreunguis with 1 tooth, smaller foreunguis simple, larger midunguis simple, smaller midunguis with 1 tooth, hindungues equal and simple in both sexes; tergum I dark-scaled with patch of broad pale scales on laterotergite, terga II–VI dark-scaled with few basomedian pale scales (not forming complete bands); terga of males with numerous long lateral setae and tergum VIII with median triangular projection on posterior margin; segment VII dorsoventrally flattened in females. FEMALE GENITALIA – Tergum VIII and sternum VIII longer than wide, both normally without scales, tergum with straight posterior margin, sternum with narrow median non-pigmented strip on proximal 0.30, posterior margin broadly rounded; tergum IX a single sclerite with median posterior emargination; postgenital lobe slightly wider than median width of cercus, with small apical emargination; cercus long, narrow, without scales; upper and lower vaginal sclerites absent; insula lip-like, few setae in lateral patches; 3 spermathecal capsules. MALE GENITALIA – Very large; ninth tergal lobes short, narrow, blunt, each bearing few short flattened setae; sternum IX mostly membranous with basal, lateral and posteromedian pigmented areas; gonocoxite with numerous scales, mesodorsal margin with small apical lobe bearing 1 long stout seta and basal lobe consisting of large distal oval structure bearing numerous setae, oval structure connected to basomesal area of dorsal surface segment VII dorsoventrally flattened in females, mesal surface membranous; gonostylus attached at apex of gonocoxite, with 3–5 small scales near mid-length and 1 narrow gonostylar claw inserted at apex; claspette comprised of narrow, elongate columnar stem with lanceolate claspette filament at apex; aedeagus tube-like, widest in distal 0.33. LARVAE – Antenna with numerous spicules, seta 1-A with 3 or 4 branches, not reaching apex of antenna; seta 4-C branched, inserted mesal and slightly posterior to seta 6-C; *seta 5-C 0.21‒0.38 length of dorsal apotome, *with few branches, inserted posterior and slightly mesal to seta 6-C; seta 6-C single; seta 7-C multi-branched, inserted more or less directly lateral to seta 4-C; seta 13-C and seta 14-C single; seta 19-C minute; setae 1–3-P not borne on common setal support plate, seta 4-P triple, branches short, slender; *seta 6-T branched; seta 6-I,II,V single, long, *6-II branched, longer than 6-III, 6-III,IV double; seta 7-I single, slightly shorter than seta 6-I; *seta 10-VII and *12-VII branched; seta 1-VIII with 3 or 4 branches, shorter than seta 2-VIII; *seta 2-VIII double; comb comprised of numerous scales in patch; siphon with several evenly spaced pecten spines; seta 1-S multi-branched, *inserted within pecten; saddle incomplete, with small attached acus; seta 1-X inserted on saddle; ventral brush (seta 4-X) with 1 (rarely 2) branched precratal seta and remaining setae borne on grid with both transverse and lateral bars. PUPAE – Seta 1-CT much shorter than seta 3-CT; *seta 11-CT branched; seta 3-I double; *seta 3-II inserted lateral to seta 2-II, *thinner than seta 1-II; *seta 5-II longer than seta 3-II; setae 6,7-I single, 7-I rarely double; seta 1-II multi-branched; seta 5-II inserted lateral to seta 4-II; seta 3-III long, double; *seta 2-V inserted anterior to setae 3-V; seta 3-V single; seta 5-V,VI double, 5-V noticeably longer than following tergum, 5-VI slightly longer than following tergum; seta 2-VI inserted lateral to seta 1-VI; seta 6-VII inserted posterior and very slightly mesal to seta 9-VII; seta 9-VIII inserted anterior to posterolateral corner of segment; paddle rounded apically, without hair-like marginal spicules; seta 1-Pa short, branched. See genus Ochlerotatus.