480 NEW YORK STATE MUSEUM 



tapering gradually and with a short, stout, apical spine. Claspette a 

 prominent basal lobe bearing a conspicuous, stout, apical spine. 

 Harpes apparently absent; harpagones strongly recurved, each 

 with a large and a small tooth. Unci prominent, broad, fused, 

 terminating posteriorly in a rounded, perforated process. Set- 

 aceous lobes not produced, bearing about seven stout setae. 



Culicella melanurus Coq. Genitalia, male. Basal clasp segment 

 stout, tapering to a rounded apex. Terminal segment slender, 

 tapering slightly and with a rather short, stout, apical spur. Clasp- 

 ette a rather conspicuous basal lobe bearing a number of stout setae. 

 Harpes apparently absent; harpagones curved, strongly recurved, 

 each with a larger and two smaller, recurved teeth. Unci broad, 

 separated anteriorly, posteriorly rounded, inner edges appressed 

 though not fused. Setaceous lobes not produced, each bearing a 

 number of stout spines. 



Female. Lobes broadly roimded, apparently attached dorsally, 

 with the nearly circular margin of the free end ventral. T.ergum 

 produced beyond the lobes, broadly rounded. Posterior margin of 

 the seventh abdominal segment fringed with a series of very stout, 

 long spines. 



Theobaldia annulata Meig. Genitalia, male. Basal clasp seg- 

 ment stout, tapering gradually to a rather broadly rounded apex. 

 Terminal clasp segment slightly enlarged at the base, rather strongly 

 curved and with a short, stout apical spine. Claspette a rather 

 conspicuous basal lobe bearing a number of stout setae and several 

 strong apical spines. Harpes stout with broadly expanded base, 

 the apical portion dilated, strongly spined and ending in one or two 

 stout, chitinous spurs. There is a peculiar sensory organ on the neck 

 of the harpes or just before its distal expansion. It is an oval, 

 elevated area with a number of clear spots, from each of which arises 

 a stout seta. Harpagones wanting. Unci stout, rather slender, 

 somewhat acute apically. Setaceous lobes slightly developed and 

 bearing numerous long, rather slender setae. [PI. 12, fig. 2] 



Theobaldia incidens Thom. Genitalia, male. Basal clasp seg- 

 ment stout, somewhat elongate, obliquely truncate to a rather acute 

 apex. Terminal clasp segment rather slender, tapering gradually 

 from the slightly expanded base and bearing a rather long, slender 

 apical spine. Claspette with a rather conspicuous basal lobe bearing 

 two stout apical setae. There is, in addition, a somewhat prominent 

 subapical setaceous process armed with several stout setae, sug- 

 gesting the very characteristic group of apppendages in Culex 

 proper. Harpe elongate, slender, with apex slightly expanded and 

 divided into two major apical teeth and one or two smaller subapical 

 ones. The peculiar sensory organ observed inT. annulata 

 Meig. is more strongly developed in this species, being a con- 

 spicuous oval or subglobular elevation crowned with numerous 

 stout setae. Harpagones wanting. Unci approximate, convolute, 

 ventral margin broadly rounded and tapering to a truncate pos- 

 terior edge with a conspicuous spine laterally. Setaceous lobes 

 weakly developed, each with about seven rather slender, weak 

 spines. [Pi. 12, fig. i] r>'?9 i^-'i 



