Coquillettidia Dyar, 1905

ADULTS – Compound eyes narrowly separated above antennal pedicels, interocular space with or without scales; maxillary palpus of females with minute apical palpomere, without scales, maxillary palpus of males as long or longer than proboscis, apex of palpomere 3 and all of palpomere 4 somewhat broadened, palpomere 5 well developed, setose, not upturned; proboscis with or without pale scales, longer than forefemur; scutal scales of 1 or 2 colours; acrostichal setae in a more or less complete line; scutellar scales often sparse; antepronotum without scales; postspiracular setae absent; mesokatepisternum with scales largely restricted to lower area or if numerous on upper part not continuous with prealar sales; dorsal scales of wing usually all narrow and unicolorous, rarely with mixture of broader dark and pale scales; legs with or without conspicuous pale markings, tarsi with or without pale bands; scales of abdominal tergum I confined to small central area. FEMALE GENITALIA – Abdominal segment VIII largely exposed, sternum without lateral flap-like lobe; cercus rounded, without upturned apical process; postgenital lobe usually more or less rounded distally, at most slightly emarginate apically; 3 spermathecal capsules. MALE GENITALIA – Ninth tergal lobes more or less distinct, with few to many setae; gonocoxite more or less cylindrical or conical, mesal membrane present or absent; gonostylus with apical or subapical spiniform gonostylar claw; claspette short, poorly developed, with 1 or more elongate apical spiniform setae; aedeagus variable, with or without spicules. LARVAE – Hypostomal suture usually interrupted in anterior 0.5; antenna with distal part usually as long as proximal part, flexible, annulated, jointed and movable along peculiar diagonal ventral connection to basal part; setae 2,3-A much shorter than distal part; seta 4-III,IV inserted laterad of seta 3; comb usually with at least 5 spine-like scales, basolateral denticles and spicules sometimes present; setae 3,4,5-VIII always in compact group; seta 1-S usually on a distal lobe of siphon; ventral brush with 4 or 5 pairs of setae on grid, some precratal setae sometimes also present on ventral midline of saddle; accessory setae (x,y,z-X) sometimes present on saddle. PUPAE – Trumpet with apex produced into a narrow poorly sclerotised process surrounded by a “cellular” lobe on 2 sides (usually broken off in pupae detached from plant parts); all cephalothoracic setae unbranched; seta 9-VIII inserted on dorsal surface of segment, removed from caudolateral angle; all setae very small and single; seta 3-III–VI absent; seta 11-II–VII usually absent, an alveolus occasionally present; paddle long and narrow. See genus Coquillettidia.