Genus Culicada. 365 



cross-vein about its own length distant from the mid ; halteres 

 with ochreous stem and grey-scaled knob. 



Length, — 5 mm. 



$ . Antennae and palpi black ; hair-tufts of latter rich 

 brownish-black, apical portion clavate ; fore ungues very unequal, 



Fig. 142. 

 Wing of Culicada abserrata. 9 . Felt. 



both uniserrate, the larger with a bend in the middle giving a 

 marked sinuous appearance ; the mid are also unequal, but the 

 larger one is simply curved, both uniserrate ; the posterior pair 

 equal and uniserrate. Genitalia has basal segment of clasp 

 stout, irregularly curved, rounded ; apical portion nearly strap- 

 shaped ; describing almost a semicircle and with a curved blunt 

 spine apically ; harpes long, irregularly curved, pointed. At 

 extreme base, slightly anterior of the basal segment of the clasp, 

 there is a pair of short fleshy organs tipped with four or five 

 stout spines. 



Length. — 5 * 5 mm. 



Habitat. — Elizabeth Town and Nassau, New York (E. P. Felt). 



Time of capture. — May and June (E. P. Felt). 



Observations. — Re-described from a perfect <£ and 9 sent me 

 by Professor Felt. 



The male ungues are very marked, and do not agree with 

 what Felt states : — " Ungues of the front tarsi on male side 

 unequal, all others and those of female side equal." 



Felt seems to have described an abnormal specimen, for an 

 hermaphrodite insect can only be looked upon as such. He 

 states : — " Described from a single bred, bisexual individual." 



The specimens he sends me are normal and quite distinct 

 from any other species I know. They certainly come in the genus 

 Culicada, and not Culex as Felt mentions, although at first sight 

 it resembles C. fatigans and, on closer examination, C. dentatus, 

 Theob., owing to the J uniserrate ungues. 



The structure of the thoracic and wing scales differs and 



