458 NEW YORK STATE MUSEUM 



and tibiae with some shading of yellow and largely yellowish 

 ventrally. Claws imidentate, those of the fore and mid legs 

 unequal. Wings with costa and first and second longitudinal veins 

 rather thickly clothed with dark brown scales; fringe grayish 

 purple. Petiole of first submarginal cell about as long as the cell, 

 that. of the second a little longer. Posterior cross vein about its 

 own length from the mid cross vein. 



Described from several freshly bred specimens taken at Nassau, 

 May 10, 1905. 



Corethra fuliginosus n. sp. 



Female. Proboscis very short, pale yellowish. Palpi fuscous 

 yellow, about three times as long as the proboscis with the third 

 and fifth segments subequal, fourth shorter. ^ Antennae about one 

 half the length of the body, pale yellowish; basal segment sub- 

 globular, fuscous internally, others brownish with sparse basal 

 whorls and a scanty clothing of pale yellowish hairs. Occiput 

 rather thickly clothed with purplish brown hairs. Pronotal lobes 

 prom.inent with lateral tufts of stout hairs. Mesonotum with a 

 narrow median line of short, black hairs and a nearly smooth, sub- 

 dorsal brown area, narrowing posteriorly. Sublaterally the meso- 

 notuir. is clothed with long, dark brown hairs, becoming longer 

 posteriorly except for a rather broad sublateral naked space poster- 

 iorly. Pleura nearly naked. Scutellum prominent with numerous 

 long, brown apical setae; postscutellum smooth, yellowish with 

 dark brown inverted V. Halteres, basal portion yellowish trans- 

 parent, apical fuscous. Abdomen a uniform fuscous, sparsely 

 clothed with long, yellowish hairs, ventral surface a fuscous yellow. 

 Coxae pale yellowish. Legs nearly uniform yellowish fuscous. 

 Wings with the costa thickly clothed with dark brown scales, other 

 veins rather thickly ornamented with light brown or straw yellow 

 scales; fringe purplish gray. Petiole of first stibmarginal cell about 

 one third the length of the cell ; that of the second about as long as 

 the cell. Posterior cross vein less than its own length from the 

 mid cross vein. 



Described from a freshl}- bred specimen taken at Nassau N. Y., 

 June 12, 1905. 



MORPHOLOGY AND PHYLOSENY 



The culicid antennae are normally composed of 14 segments 

 with possibly a rudimentary 15th apparent in a few species. The 

 first segment is subglobular in both sexes and in the female the 

 succeeding ones are relatively simple, each with a basal whorl of 

 stout hairs and usually moderately to thickly clothed with very 

 short, fine hairs. The male antennae have the basal whorl present 

 in the female except that the individual hairs are somewhat more 

 slender and much longer. This sex is recognized at once in all but 

 a very few, by the very long, fine hairs or plumes occurring on seg- 

 ments 2 to 12 inclusive. These latter appear to be nothing but the 



