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NEW YORK STATE MUSEUM 



curved, chitinous spines and its ventral margin terminated by a 

 stout, recurved hook. Unci long, slender, approximate, broadly 

 rounded posteriorly. Setaceous lobes probably absent. 



Fig. 19 Deinocerites cancer, ventral aspect of male 

 genitalia, much enlarged (Original) 



Female. The female genitalia of this species diverge ^'ery widely 

 from the ordinary type. There are a dorsal pair of subtriangular, 

 articulated processes, each bearing two long non articulated, stout, 

 curved, blunt," chitinous processes. Tergum small, deeply exca- 

 vated mesally. Venter of eighth segment produced as a pair of 

 stout, chitinous, non articulate lobes, the ventral posterior margin 

 crowned with a series of stout, chitinous spines arising from con- 

 spicuous tubercules. 



Aedes fuscus O.S. Genitalia, male. Basal clasp segment 

 stout, subconical. Terminal segment subapical with a very large, 

 rovmded basal lobe and the slender tip with a pair of blunt, diver- 

 gent processes. There are no traces of a terminal articulated spine. 

 Claspette a conspicuous subtriangular, ventral prolongation of the 

 inner basal wall. Harpes very slender, semitransparent at base, 

 more strongly chitinized and brownish apically, bifurcate. Lateral 

 limb about one third longer than the median branch, each rather 

 thickly clothed with fine setae and ornamented with several lateral 

 and a long conspicuous terminal spine. Harpagones stout, recurved, 

 tapering to a rather acute, obscurely dentate point. Unci narrow, 

 approximate, ventral limb slightly excurved to a nearly acute 

 point, dorsal limb stouter, incurved to an acute point. Setaceous 

 lobes stout, rounded apically and with numerous long, rather weak 

 spines. These latter organs are more or less concealed by the over- 

 lying appendages of the preceding segment. [PI. 18, fig. 2] 



