MORGAN HEBARD 149 



in C. lutea as discussed under that species), moderately broad 

 with costal and sutural margins straight and in greater part sub- 

 parallel; scapular area very broad; discoidal sectors (except in 

 insularis and possibly in punctipennis) normally five in number 

 (this including the median vein and its branches and the ulnar 

 vein); diagonal channel of dextral tegmen (diagonal vein of au- 

 thors) pronounced in anal field, extending to discoidal vein and 

 occasionally traceable beyond among the costal veins; portion of 

 dextral tegmen, which is concealed when at rest, less suffused and 

 with cross-veinlets more distinct than in other portions of the 

 organ. Wings weakly to distinctly iridescent (except in imitans) ; 

 a number of costal veins strongly and briefly clubbed distad; 

 ulnar and axillary vein branched; intercalated triangle small but 

 evident. Supra-anal plate in both sexes very small and strongly 

 transverse. Cerci elongate, flattened; with lateral margin of 

 each segment narrowly deplanate and with this margin weakly 

 convex in lateral outline; segments normally ten in number and 

 well defined, the last three decreasing rapidly in size, the last 

 segment being minute and cylindrical. Subgenital plate of males 

 moderately large, in the majority of species symmetrical but in 

 some very strongly asymmetrical. Subgenital plate of females 

 very large, decidedly produced mesad. Cephalic femora slender 

 with ventro-cephalic margin supplied proximad with (usually 

 four) long, widely spaced spines the more distal shortest, succeeded 

 distad by a more closely set row of shorter spines terminated by 

 two long spines; ventro-caudal margin with two widely spaced 

 long spines meso-distad and a single long distal spine. Other 

 femora supplied distad with a long dorsal spine and single shorter 

 distal spines on each of the ventral margins, which margins are 

 further supplied with a few long spines. ]\Ioderately well de- 

 veloped arolia present. 



Generic Distribution.— The genus is known from the south- 

 eastern United States, the Bahamas, Greater Antilles, Little 

 Cayman Island, Antigua, Dominica, Barbados, Trinidad and 

 Panama. It is not represented in large series of material before 

 us from continental tropical North America north of Panama. 



Environmental Notes. — In the southeastern United States we 

 have found C. lutea widely distributed among the dead leaves, 

 pine needles and grasses in the forest, and also in the open under 



TRANS. AM. ENT. SOC, XLII, 



