110 Bulletin of the Brooklyn Entomological Society Vol. XVI 



have constituted the material on which the following conclu- 

 sio:ns are based. 



Didymops floridensis n. sp. 



Type, male. Lakeland, Florida, March 28, 1912 (Davis). 

 Davis collection. 



Larger than transversa, and with a sharper front angle 

 to the occiput. When the head is viewed in profile the 

 post-clypeus is seen to be considerably sinuate at the ex- 

 tremity ; in transversa there is no sinuation or only a feeble 

 one. The abdominal appendages are about alike in both 

 species, but in floridensis the close set hairs conspicuous 

 On the terminal segments of the abdomen are very short, 

 and about one half as long as in transversa. In the type 

 and paratype of floridensis the lower part of the a.nal loop' 

 is straight and finally angled at the outer extremity, whereas 

 in transversa the lower portion of the loop has generally 

 an even curve. 



In transversa the first antecubital space is clouded wholly 

 or in part in both front and hind wings ; in floridensis these 

 spaces are clear. In transversa the costa, the median vein, 

 and at least the basal part of the submedian vein are brown 

 or brownish, while in floridensis the venation is black or 

 nearly so except the costa which is pale. In transversa the 

 frons is brown or dark brown; in floridensis it is almost 

 entirely shining black. In transversa the occiput is green- 

 ish yellow and more broadly triangular than in floridensis 

 where it is shining lemo:n yellow in color with the sides 

 forming a more acute angle. The head is dull yellowish 

 behind the eyes in transversa; in floridensis there is a long, 

 narrow, shining black area chiefly above the tubercle, and 

 extending to the occiput. The colors generally are more 

 contrasting in floridensis than in transversa; the yellows are 

 replaced by orange and the browns by black especially on 

 the head. The abdomen widens out near the extremity in 

 the same manner in both species; in both the appendages 

 are nearly entirely pale in color, and except as indicated the 

 spots and colors are also about the same in both. 



Measurements in Millimeters. 



Male Type. 



Total length 65 



Width of bead across eyes 10 



Length of abdomen 46 



