CRICKETS — CHOPARD 259 



Family Trigonidiidae 



Key to the American genera 



1. Last joint of maxillary palpi more or less dilated but of normal shape ... 2 

 Last joint of maxillary palpi considerably expanded, foliaceous 10 



2. Elytra of male presenting a distinct mirror 3 



Elytral venation similar in both sexes 7 



3. Head flattened above; eyes horizontally lengthened; 5th joint of maxillary 



palpi very short Cyrtoxipha Brunuer 



Head convex above; eyes vertically lengthened; 5th joint of maxillary palpi 

 longer 4 



4. Form extremely slender; posterior metatarsi nearly twice as long as the other 



joints together Macroanaxipha Hebard 



Not so slender; posterior metatarsi shorter 5 



5. Anterior tibiae without tympana; size very small Falciciila Rehn 



Anterior tibiae with more or less distinct tympana; size larger 6 



6. Auditory tympana Unear, imperforate; tegmina corneous, the veins poorly 



defined. Color of insect bright Symphyloxiphus Rehn 



Auditory tympana oval; tegmina membranaceous. Color of insect dull 

 yellow or brownish to blackish Anaxipha Saussure 



7. Elytra covered with a fine pubescence Hebardinella Chopard 



Elytra without hairs on the dorsal surface 8 



8. Elytra! veins quite straight, parallel, projecting 9 



Elytral veins less projecting, more or less obhque and diverging. 



Metioche Stal 



9. Posterior legs abnonnally long Estrellina Hebard 



Legs of normal length Khicnogryllus Chopard 



10. Head and pronotum very elongate; coloration more or less metallic; pronotum 



without pubescence Cranistus Stal 



Head short; pronotum a little longer than wide 11 



11. Eyes feebly projecting; pronotum without hairy covering. 



Phyllopalpus Uhler 



Eyes more strongly projecting; pronotum with hairy covering. 



Phylloscyrtus Guerin 



Genus Cyrtoxipha Brunner, 1873 

 Cyrtoxipha pernambucensis Rehn 



Cyrtoxipha pernambucensis Rehn, Proc. Acad. Nat. Sci. Philadelphia, vol. 72, 

 p. 283, pi. 11, fig. 39, 1920. 



Specimens examined: PEutj: Pucallpa, Jan. 29, 1948 (19), Feb. 1. 

 1948 (19), Schunke; Tingo Maria, Nov. 14, 1949 (19), AUard. 



Genus Anaxipha Saussure, 1874 

 Anaxipha peruviana Saussure 



Figure 3,g 



Cyrtoxipha peruviana Saussure, Mission scientifique au Mexique .... Recher- 

 ches zoologiques, pt. 6, section 1 (Orthoptferes) , p. 378, 1874. 



