996 FAMILY XXXII. — VELIID,£. 



eastern states.'' 7 On account of the rarity of macropterous in- 

 dividuals the following key is based on the brachypterous ones 

 alone. 



KEY TO EASTERN SPECIES OF RHAGOVELIA. 

 a. Last joint of middle tarsi subequal in length to or longer than the 

 one preceding; hind femora of male distinctly swollen, spinose 

 beneath; reflexed connexiva of female almost meeting along part 

 of the dorsal surface of abdomen; color blackish, sometimes with a 

 faint bronze lustre. Fresh water species. 

 b. Pronotum of female subtruncate behind; hind femora of male not 

 more swollen than in female, armed beneath on apical half only. 

 c. Connexivum narrowly or not at all yellow; joint 1 of antennas dis- 

 tinctly more than one and one-half times as long as 4. 

 d. Meso- and metanota broadly exposed behind the pronotum; first 

 segment of connexivum of female with a tuft of long matted 

 hairs arising from its hind angle; front trochanters of males 

 with a stout black spine on outer face. 1133. obesa. 



dd. Mesonotum wholly and metanotum in great part, concealed be- 

 neath pronotum ; first segment of female connexivum without 

 tuft of hairs; front trochanters of males unarmed. 



1134. CHOREUTES. 



cc. Connexivum with margins broadly yellow; joint 1 of antennae not 



more than one and one-half times as long as 4; front trochanters 



of male armed and first connexival of female with tuft of hairs 



as in obesa. 1135. flavicincta. 



bb. Pronotum of female prolonged backward in a slightly elevated 



knobbed process ; hind femora of male strongly swollen, armed 



beneath throughout their length. 1136. oriander. 



act. Last joint of middle tarsi distinctly shorter than the one preceding; 



hind femora not swollen, in males minutely setose beneath; reflexed 



connexiva of female widely separated throughout their length; 



color leaden gray. Salt-water species. 1137. plumbea. 



1133 (1309). Rhagovelia obesa Uhler, 1871, 107. 



Oblong-ovate, strongly narrowed behind. Above black, with a brown- 

 ish or bronzed tinge; pronotum with a small orange-red spot each side of 

 median line and narrow side margins of both it and connexivum orange- 

 red; antenna?, tibia? and tarsi dark brown; coxa?, trochanters and usually 

 the base of front femora yellow ; under surface clothed with a short 

 bluish-sericeous pile, this extending over front margin of pronotum. Head 

 with interocular area scarcely wider than eye, and with a fine elevated 

 longitudinal line. Antenna? with a few short erect hairs. Pronotum 

 minutely very sparsely punctate and with a fine median carina, its hind 

 margin broadly rounded, male, subtruncate, female; in winged females 

 with apex prolonged, curved upward, its tip slightly widened, feebly 

 forked. Meso- and metanota both fully exposed as concentric rings be- 



•' 7 Tue "Indiana" records of Walker (1873, 161) and Champion (1898. 13fi) for 

 /,'. distincta Champ, were probably based on a mislabelled specimen as distincta is a 

 Mexican species known in this country only from Arizona. 



