199 



lateral lobe acute, arcuate ; posterior transverse sulcus situated a little in 

 front of the middle. Elytra passing the posterior femora considerably; apex 

 rounded. Color a whitish-fulvous. 



Length to the tip of the elytra, 1.5 inches. 



Eastern Mexico (Saussure). 



SPHE]\ARIU1?I, Charp. 



This genus, which is very briefly described by Charpentier, appears to 

 be allied to Pyrgornorpha in tWe form of the head, but varies considerably 

 from that genus in the form of the pronotum and body. The head is conical; 

 the occiput horizontal or sub-ascending; the vertex somewhat prolonged in 

 advance of the antennae, slightly ascending. Face oblique, and slightly 

 curved inward. Eyes oval. Antennse consisting of 12 to 14 joints; sub- 

 cylindrical, somewhat acuminate, with distinct joints. Pronotum sub-elongate, 

 expanding posteriorly, and slightly selliform ; sub-cylindrical and obtusely 

 rounded behind. Thorax long in proportion to the body, and broad at the 

 posterior extremity. Abdomen short, tapering rapidly to the posterior 

 extremity; apex of the male curved upward. Posterior legs somewhat 

 elongate, the femora passing the abdomen. Elytra minute, not meeting on 

 the back ; wings wanting. Whether the prosternum is spined or not is not 

 mentioned in any description that I have seen. 



S. purpiirascens, Charp., Orthop., Tab. 31. 



Sexes alike in color and size. Vertex rounded, ascending in front of the 

 eyes, apex broad and blunt; it is almost divided by an impressed line. The 

 eyes are somewhat angular and projecting. Face deflexed at about 4.t de- 

 grees ; broader below than above ; frontal costa distinct and sulcate ; lateral 

 carinae distinct. Antennse scarcely reaching the posterior extremity of the 

 pronotum ; slightly flattened. Pronotum nearly three times as long as the 

 crown of the head; expanding considerably posteriorly; the sides extend 

 farther down behind than in front. Elytra rudimentary, placed low on the 

 sides, not meeting above ; very narrow, reaching the second abdominal 

 segment. Abdomen short, broad at base, narrow at the apex ; that of the 

 male curved upward ; cerci conical. 



Color. — Yellow beneath; sides and above purplish-red, which is the 



