REPORT OF THE STATE ENTOMOLOGIST 1904 473 



Desvoidea obturans Walk. Genitalia, male. Basal clasp seg- 

 ment stout, conic, tapering gradually to a rounded apex. Terminal 

 clasp segment rather stout, strongly curved and with a series of 

 stout spines occurring along th% inner margin of the apical half. 

 Claspette an inconspicuous basal lobe bearing several stout spines. 

 Harpes rather stout, tapering to a somewhat rounded apex. Harpa- 

 gones short, stout, terminating in a stout, recurved spine. Unci 

 approximate with dorsal, ventral and apical margins strongly ser- 

 rate. Setaceous lobes indeterminate. 



The genus Desvoidea presents some extraordinary characters 

 in the genitalia. The terminal clasp segment is remarkable because 

 of the series of stout, chitinous spines along a considerable propor- 

 tion of its inner margin and the unci are unique in that they appear 

 to be composed of a series of fused, stout, chitinous processes, giv- 

 ing the free margins a strongly serrate character. 



Mucidus alternans Westw. Genitalia, male. Basal clasp seg- 

 ment stout, gently rounded exteriorly to a more or less rounded or 

 oblique apex. Terminal clasp segment strongly curved, slender 

 and bearing a stout, rather long apical spine. Claspette a rather 

 conspicuous basal lobe bearing a number of coarse setae and one or 

 more stout, chitinous spines. Harpes long, slender, basal portion 

 short, apical part strongly curved, terminating in an acute point. 

 Harpagones rather long, slender, terminating in a stout, recurved 

 spine. Unci approximate, slender, with a broadly rounded apex. 

 Setaceous lobes apparently rudimentary, though the stout setae 

 normally occurring, are present. [Pi. 7 fig. i] 



Culicelsa taeniorhynchus Wied. Genitalia, male. Basal clasp 

 segment stout, rather long, slightly tapering to a somewhat rounded 

 apex. Terminal segment slightly swollen in the middle and with 

 a long apical spur. Claspette a prominent internal lobe at the basal 

 third, bearing numerous long setae. Harpes long, basal portion 

 setaceous, incurved; apical naked and with a prominent retrorse, 

 exterior spine. Harpagones regularly curved, ending in an acute, 

 external spine. Unci broad, approximate, with rounded apex. 

 Setaceous lobes of ninth segment slightly developed, each bearing 

 a number of stout spines. 



Culicelsa aurifer Coq. Genitalia, male. Basal clasp segment 

 rather stout, with distinct apical lobe, and at its extremity a 

 peculiar, thick tuft of long scales or hairs. Terminal segment 

 slender, slightly swollen in the middle and with a long, stout apical 

 spine. Claspette a prominent internal process near the middle, 

 bearing a falcate, chitinous spine. Harpes long, slightly curved 

 inwardly, basal portion setaceous, apical part terminating in a 

 large bladelike structure with a short, external retrorse spine. 

 Harpagones curved, with an external terminal spine and a number 

 of peculiar, short, external setae about their middle. Unci long, 

 slightly separated, the apex subacute. Setaceous lobes well devel- 

 oped, each crowned with about six long, stout spines. 



