SPH.EEOPHTHALMA. 375 



level of the dorsulum, which is also much more strongly convex; the stigma 

 larger ; the middle tibiae with only one spur ; and the recurrent nervures received 

 by the second and third cubital cellules, instead of both being received by the 

 second. 



The species are very similar in the coloration of the body, being, as a rule, of a 

 uniform brownish tint and without much, if any, sculpture, this being also the case 

 with Brachycistis. In both groups the abdomen may have a long or a short peduncle ; 

 and the wings may have two or three cubital cellules. The stigma is larger than in 

 the typical Sphcerqphthalma. 



So far as is known the species are nocturnal in their habits and come to light at 

 night. Hitherto they have been found chiefly in the southern parts of the United 

 States and in Mexico. 



In the arrangement of the species I have followed Blake as far as possible. 



130. SphaBrophthalma orizaba. 



Agama orizaba, Blake, Trans. Am. Ent. Soc. iii. p. 259 \ 

 Photopsis orizaba, Blake, op. cit. xiii. p. 260 2 . 



Hab. Mexico 1 2 . 



This species has only two cubital cellules ; the others here enumerated having three. 

 I am not sure if it is to be referred to the genus JEdrionotus, Eadoszk., which has only 

 two cubital cellules, with the abdomen subsessile. As defined by Eadoszkowsky, 

 Photopsis has only two cubital cellules. 



131. SphaBrophthalma oeax. 



Ferruginea, longe albo-hirta ; abdomine nigro, albo-hirto, basi apiceque ferrugineis ; alis hyalinis, stigmate 



nigro. d 1 . 

 Long. 9 millim. 



Hab. Mexico, Northern Sonora (Morrison). 



The head is a little narrower than the thorax, ferruginous, the ocelli in a black 

 patch ; covered all over with widely separated and not very deep round punctures ; 

 the vertex and front bearing long fuscous hair ; the oral region and the base of the 

 mandibles covered with long white hair; the tips of the mandibles blackish. The 

 antennae are as long as the head and thorax united, fuscous, the basal two joints 

 ferruginous; the third joint a little longer than the fourth; the scape covered with* 

 long white hair, the flagellum with a short close fuscous pubescence. The thorax is 

 wider than the head, covered, but not very closely, with long white soft hair ; above 

 not very distinctly punctured ; the mesopleurae more strongly punctured ; the meta- 

 pleurse indistinctly reticulated ; the median segment distinctly and regularly reticulated 



