OF ABDOMEN OP THE MALE 

 FROM ABOVE. 



308 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxii. 



the lateral lobes with creamy white; meso-and nietapleura each with 

 an elongate white spot. 



Measurements. — Length, pronotiun, 10 mm.; elytra, 21; posterior 

 femora, 36; width, pronotum at the hinder 

 part of the disk, 0.5; posterior femora at 

 widest point, 5. 



Ti/pe.—Odt. No. 10163, U. S. National 

 Museum. 



Sj>ecliiiens examined. — One male, the type 

 (tig. 16), Texas. 



Fig. 17.— rehnia spinosa. Tip Tliis large yellow species with the conspic- 

 uous black spines is a ver}^ noticeable insect. 

 The piceous spines on the yellow femora 

 serve to impart to it a very spinose appearance, quite different from 

 any other of our native forms. Bruner, who kindly presented this 

 curious creature to the National Museum, is authorit}^ for the above 

 habitat, the specimen itself being without label of any sort. But he 

 expresses himself as being very positive of the locality. It is very 

 surely an introduced species, probably coming from Mexico or Central 



America. 



ZACYCLOPTERA, new genus. 



D-jscriptlon. — Male, female unknown. Head moderate; eyes 

 medium in size, prominent; vertex not prominent, narrow, scarcel}^ 

 as broad as the basal segment of the antennae, about one-fifth as 

 broad as the interocular space. Pronotum large, produced posteriorly 

 over the base of the abdomen; lateral lobes considerably inclined, 

 about twice as long as high, rounded below, posteriori}^ broadly 

 sinuate; disk rounded, slightly elevated on the posterior fourth, 

 anteriorl}^ truncate, posteriorly broadly rounded: lateral carina? indi- 

 cated on the posterior fourth by rounded shoulders, anteriorly repre- 

 sented only l)y a light-colored stripe; median carina not indicated. 

 Prosternuui armed with a pair of short spines. Wings and eh tra of 

 equal length, projecting beyond the pronotum a little more than the 

 pronotal length; wings exceedingly broad, decidedly broader than 

 long and uniforndy piceous; elytra apically narrowly rounded, the 

 tympanum occupying about one-third the length of the elytra beyond 

 the pronotum. Legs long and slender; posterior femora more than 

 tAvice as long as the pronotum and very little swollen on the basal half, 

 armed below on both margins with a few very small sharp spines; 

 posterior tibiie armed below with four apical spurs; anterior tibia^ 

 armed above on the outer carina only with three spines. Tip of the 

 abdomen much shrivelled in the onlv specimen seen, but thesupraanal 

 plat(? seeius obscure and the last abdominal segment is long and deeply 

 and narrowly cleft; cerci short, about twice as long as the basal width 

 and apically depressed and formed into two teeth, directed inward and 

 a little downward. 



