44 ORTHOPTEROUS GROUP INSARAE 



1906. Hormilia Rehn, Proc. Acad. Nat. Sci. Phila., 1905, p. 806.' 



1906. Insara Kirby, Synon. Catal. Orth., II, p. 442. (In part.) 



1907. Hormilia Rehn, Proc. Acad. Nat. Sci. Phila. 1907, p. 58. 

 1907. Hormilia Rehn, Proc. Acad. Nat. Sci. Phila., 1907, p. 78. 

 1907. Hormilia Rehn, Proc. Acad. Nat. Sci. Phila., 1907, p. 78. 



1909. Hormilia Rehn and Ilebard, Proc. Acad. Nat. Sci. Phila., 1909, p. 167. 

 1909. Hormilia Rehn and Hebard, Acad. Nat. Sci. Phila., 1909, p. 474. 



Genus monotypic. Genotype — Insara strigulata Walker = 

 Insara tolteca [Phaneroptera tolteca] (Saussure) . 



This genus is a member of the Phaneropterinae and of the group 

 Insarae (Hormihae of Brunner, 1878), to which group the genera 

 Callinsara, Dolichocercus, Brachyinsara and Arethaea also belong. 

 The genus appears to be peculiar to North and Central America; 

 the two species credited to it (as Hormilia) from South America 

 belonging with little doubt to an allied genus. The remaining de- 

 scribed genera belonging to the group Insarae are also peculiar to 

 North and Central America, with the exception of Callinsara which 

 is known only from South America. 



Generic Description. — Fastigium of vertex narrow, compressed, 

 subequal, subhorizontal, with a decided medio-longitudinal sul- 

 cation, lateral margins roundly elevated; fastigium of vertex in 

 contact with facial fastigium, the two presenting a flat cephalic sur- 

 face, their lateral aspect presenting an outline which forms a sharp- 

 ly rounded angle of a little more than ninety degrees. Antennae 

 subcrassate proximad, from three to five times the length of the 

 body. Pronotum not at all or decidedly constricted in the meso- 

 cephalic portion; dorsum flat or deeply sellate, bounded laterad by 

 clearly defined angulations or low but distinct lateral carinae; 

 lateral lobes angularly inserted, perpendicular or nearly so, caudal 

 margin of same more or less arcuate; humeral sinus distinct or 

 indicated only by a very feeble sinuation. Tegmina very long or 

 abbreviate, rather broad or very narrow; apex of same obliquely 

 truncate or rounded. Wings present. Abdomen more or less 

 dilated; dorsal segments more or less acute-angulate produced 

 mesad ; disto-dorsal segment of males having a more or less pro- 

 nounced and extensive depression. Cerci of males short or long, 

 straight or incurved either evenly or with a decided angulation, 

 crassate; apex of same toothed, this tooth directed meso-dorsad or 

 dorsad at an angle to the cercus. Subgenital plate of male short, 

 lateral margins narrowing distad and produced in articulate or 



