Tribe CULICINI. 



The proboscis is well developed. Eyes large, but never broadly contiguous 

 above. Palpi generally small in the female, but as long as the proboscis in the 

 more generalized anophelines ; generally long in the male, often considerably ex- 

 ceeding the proboscis in length, but short in specialized forms in several genera. 

 Antennae with the joints of the shaft subequal in the female, in the male usually 

 all but the last two much shortened and with the hairs of the whorls long and 

 dense. In the group typified by Deinocerites, however, the antennae of the male 

 essentially resemble those of the female, being entirely without the peculiar 

 shortening of the basal Joints. Vertex usually with a tuft of long hairs or scales 

 projecting forward between the eyes. Setae of mesonotum usually well de- 

 veloped, most forms with strong subdorsal longitudinal rows on the disk, be- 

 sides marginal setae and those at the roots of the wings. Postnotum nude, except 

 in Dinominietes and some Hcemagogus; the former has one or two coarse setae 

 near the posterior angle, the latter two or three minute setae in some specimens. 

 Abdomen subcylindrical in the female, its shaped varied in the different genera, 

 either truncate at the tip, the cerci not prominent, or produced and tapering, 

 with the terminal segments more or less retractile and the cerci exserted. Scale 

 vestiture of head and body various, either of fiat scales throughout or to greater 

 or less extent of narrow curved or otherwise modified ones. Wings moderate, 

 the veins well-scaled, the scales of various shapes, usually narrow and linear, 

 not infrequently of different colors and marked with a pattern, especially in the 

 more generalized forms. Legs not unusually long, except in the anophelines, 

 rarely ornamented with outstanding scales in the form of fringes or tufts. 

 Claws of the feet either toothed or simple, nearly always in part at least toothed 

 in the males. Coloration various, in most forms without marked metallic luster. 



The larvae of the Culicini show great diversities of structure, but, after the 

 first molt, are easily recognizable by the presence of the ventral brush of the last 

 segment. This consists of a series of hairs or hair-tufts along the mid-ventral 

 line, sometimes extending over the whole length of the segment, but more 

 frequently occupying the portion behind the chitinous plate. The head is 

 usually rounded or subquadrate and transverse, elongate in the anophelines 

 and Uranotoenia. The mouth-brushes are usually well developed, and, in the 

 predaceous forms, are modified for capturing their prey. The mouth-parts 

 proper are of a much more uniform type than in the Sabethini. Great diversity 

 occurs in the development of the antennae. The most primitive forms, the 

 anophelines, have two independent respiratory openings on the dorsum of the 

 eighth abdominal segment, protected by an imperfect closing apparatus of 

 surrounding chitinous plates. The more specialized forms have a variously 

 modified breathing-tube on the dorsum of this segment; the trachese open 

 into a common chamber, which can be closed by a complex mechanism and 



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