54: 



del. Fastiffium of the vertex shorter than the eves. 



ARNlLIAStal. 



ec. Mesosternal lobes more or less distant. Prosterual tubercle coni- 

 cal, somewhat acute, 

 d. Prosternum with the hind margin rounded. Pronotum cjiin- 

 drical. when viewed from the side straight above, the meta- 

 zona not elevated. Frontal costa below the ocellus and late- 

 ral carintv of face subobsolete. Eves verv oblique, less 

 prominent. ^ STENOPOLA Stal. 



dd. Pronotum with hind margin obtuse-angled. 



" PAKACOKXOPS Giglio-Tos. 

 bb. Posterior tibia^ terete, not laminate, the margins rounded, 

 c. Posterior tarsi with the first and second joints subequal in length 

 Fastigium of the vertex horizontal or siibhorizontal, somewhat 

 prominent. The front strongly oblique. Tegmina as long or 

 longer than abdomen. Pronotum sub-cvlindrical. 



BUCEPHALACKIS Giglio-Tos. 

 cc. Posterior tarsi with the second joint distinctlv shorter than the 

 first, 

 d. Fastigium of the vertex triangular or in front truncate, divided 

 fi-om the frontal costa by a transverse carina or distinct angle, 

 e. Upper carina of hind femora smooth, 

 f. Interspace between mesosternal lobes narrower than the 

 lobes themselves, distinctly longer than wide. Proster- 

 nal tubei'cle conical, the apex acute. Mesosternal lobes 

 in female distiuet. Intel-space of vertex Ijetween eyes 

 not narrower than widest part of frontal costa. 



ALEUAS Stal. 

 ff. Interspace between mososternal lobes of about equal width 

 with the lobes themselves, quadrate. 



JODACKIS Giglio-Tos. 

 e. Upper carina of hind femora more or less serrate. Fastigium 

 of the vertex horizDUtally projecting, acuminate, 

 f . Pronotum rugose with the hind margin rounded, the median 

 carina visible throughout. Tegmina and wings some- 

 what abbreviated. Vertex between the eves moderately 

 broad. A'iLEKXA Stal. 



ff. Pronotum at most coarsely punctate on posterior lobe, the 

 hind margin angulate and with the median carina oblit- 

 erated between the transverse sulci. Tegmina and 

 wings greatly surpassing the abdomen. Vertex between 

 the eyes very narrow. 0S3IIL10LA Giglio-Tos. 



dd. Fastigium of the vertex cletlexed or horizontal, gently fading 

 into the frontal costa. 

 e. Mesosternal lobes longer than wide, their internal margin 

 straight. SCHISTOCEKCA Stal. 



ee. Mesosternal lobes transverse or of equal width and length, 

 their internal margin rounded, 

 f. Posterior tibia' furnished with eight or sometimes more than 

 eight spines in the outer row. 

 g. Tegmina equaling the abdomen in length or abbreviate, 

 never lobiform or rudimentary, always with the inner 

 margins overlapping, 

 h. Head small, not exserted, the hind part narrower than 

 front edge of pronotum: occiput and vertex on the 

 same plane with the pronotum. 



ATKACHELACKIS Giglio-Tos. 



