288 
A Monograph of Culicidae, 
SECTION D. 
Proboscis Short, not Formed for Piercing. 
Sub-Family CORETHRINA. 
1. Metatarsus longer than the first tarsal joint.Genus 21 Corethra 
2. Metatarsus shorter than the first tarsal joint.Genus 22 Mochlonyx 
Genus 21.— CORETHRA. Meigen (1803). 
(Illig. Mag. ii. 2G0, pi. x. ancl Syst. Beschr. Dipt. i. 14, 1, Meigen; Ins. 
Lapp. 808, 1, Zetterstedt; Hist. Nat. Dipt. i. 47, 1, Macquart; Bull. 
Soc. Imp. Nat. Mosc. iii. (1845), Cimmerthal; Faun. Germ. 109, 16, 
Panzer; Klass. Zvveifl. i. 81, Meigen; Gen. Crust, iy. 247, Latreille ; 
Dipt. Neer. p. 331, Yan der Wulp; Ins. Brit. Dipt. iii. 250, Walker; 
Fn. Austr. Die Fliegen, Schiner, i.; Syst. Ent. iy. 246, 58 ( Tipula ), 
Fabricius; Anim. sans Yerteb. iii. 444, 7 ( Tanypu-s ), Lamarck; Syst. 
Nat. v. 2826, 101 (Tipula), Gmelin; Ins. vi. 149, 20 {Tipula), De Geer.) 
Mouth not formed into a piercing proboscis; rostrum short 
and broad with two rounded hairy terminal knobs ; palpi about 
the same length in the male and female, four-jointed, joints 
hairy; antennae fourteen-jointed, about as long as the head and 
thorax, pilose in the $, very plumose in the $, slightly 
moniliform ; verticillate hairs arising from the base of the upper 
third of the joints. Thorax oval, covered with long curved hair¬ 
like scales; scutellum not trilobed, as in the other Culicidae 
(except Anopheles ), but simple, the posterior border uniformly 
curved ; metathorax rather small, nude. Abdomen long, slender, 
often almost transparent, devoid of scales, but hairy ; in the female 
the abdomen ends in two small curved blunt hairy processes ; male 
genitalia provided with claspers. Wings with the veins as in 
Culex, but the first longitudinal is some distance from the costa, 
and the sub-costal ends much nearer the tip of the wing than in 
