ANAXIPHUS.— CYETOXIPHUS. 233 



ANAXIPHUS, Sauss. 



Anaxipha, Saussure, Miss. Scient. Mex., Orthopt. p. 370 (1870) . 

 Anaxiphus, Saussure, Mel. Orthopt. 6 e fasc. p. 615. 



Very small insects, of testaceous colour. The elytra of the males quite membra- 

 naceous and transparent, with the post-anal and post-axillary veins nearly straight. 



1. Anaxiphus pulicarius, Burm. 



Gryllus pulicarius, Burm. Handb. d. Ent. ii. p. 732. 2 (1838). 



Anaxipha pulicaria, Sauss. Miss. Scient. Mex., Orthopt. p. 371. 1 ( ? <$), t. 7. fig. 1 ((?). 



Anaxiphus pulicarius, Sauss. Mel. Orthopt. 6 e fasc. p. 615. 1. 



Testaceus ; elytris $ abdomine paulo brevioribus, <$ longioribus : tibiis anticis foramine in latere interno. 

 — Long. 6-7 millim. 



Hab. North Ameeica, Dallas in Texas (Boll). — Mexico, Eastern Cordillera, Orizaba. 



CYETOXIPHUS, Brunn. 



Cyrtoxipha, Brunner v. Wattenwyl, Mittheil. schweiz. ent. Ges. iv. p. 168 (1873); Saussure, Miss. 



Scient. Mex., Orthopt. p. 373. 

 Cyrtoxiphus, Saussure, Mel. Orthopt. 6 e fasc. p. 616. 



Small insects, of testaceous colour. The elytra of the males large, quite 

 membranaceous, with the field between the diagonal and the post-anal veins usually 

 containing a more or less evident triangular area, this being very distinct in the species 

 with wide elytra and obsolete in those with narrow elytra. 



The species of Cyrtoxiphus are difficult to distinguish from each other. The 

 principal characters are to be found in : — 



1. The ovipositor (Tab. XL figg. 39, 45) (compressed and somewhat curved). It 

 may be longer and more slender (fig. 43), or shorter and wider (fig. 39); in the latter 

 case the second half is suddenly somewhat dilated (figg. 39, 44, a). In addition, the 

 end of the superior margin, which is very slightly horizontally truncate (so as to form 

 the acute apex of the organ), varies in shape according to the species. When the 

 truncation is short, the obtuse angle formed by it on the superior outline (fig. 45, a) is 

 near the end of the ovipositor ; when it is longer, it is placed at two-thirds of its 

 length, or even in the middle (fig. 39), and coincides with the angle foimed by the 

 dilatation of the apical half. The pointed, cuneiform end of the organ is finely, in 

 some cases more coarsely, denticulated. 



2. The elytra of the males are in some species slender, with the speculum of the 

 tambourine rhomboidal, longer than broad ; in others the elytra are very wide, and 

 the speculum is squarely rhomboidal, as broad as long, and the pronotum is much 

 dilated behind, so as to correspond with the breadth of the elytra. 



In both sexes the lateral field of the elytra has three longitudinal veins and a fourth 

 very short one. This rudimentary vein may be placed between the two inferior 

 biol. cente.-amer., Orthopt., March 1897. 2 Hh 



