19U7, 



NATURAL SCIENCES OF PHILADELPHIA. 



171 



form pattern; interspace between the eyes no narrower than the 

 fastigiuni ; fastigium sHghtly acutc-angulatc in the male, rcctangulate 

 in the female, the width being nearly that of the eye, between the 

 points of greatest width the fastigium is bounded caudad by a low 

 transverse carina, hardly indicated in the male, ccphalad of which the 

 disk is slightly excavate ; when viewed laterad the angle of the fastigium 

 is slightly rounded into the facial outline which is distinctly but not 

 greatly retreating; frontal costa very narrow dorsad, much more so 







Fig. 7. — Tropinotus guarani ii. sp. Lateral view of female tj-pe. (X 2.) 



comparatively in the female than in the male, from whence it regularly 

 but gradualh^ expands except for a short subequal portion in the 

 vicinity of the ocellus, in the male the costa is punctate but not sulcate, 

 in the female it is sulcate for a moderate distance dorsad and ventrad 

 of the ocellus, punctate elsewhere; eyes subovate, somewhat prominent 

 in the male when viewed dorsad, in length distinctly (c?) or slightly ( 9 ) 

 longer than the infraocular sulcus; antennaj in length slightly exceed-- 

 ing the pronotum in both sexes, slightly depressed proximad. Pro- 

 notum with the greatest width contained slightly less than twice (d^) 

 or once and two-thirds ( 9 ) in the length of the same; cephalic margin 

 slightly acute-angulate (6^) or rectangulate ( 9 ), the margins slightly 

 concave laterad; caudal margin acute-angulate in both sexes but 

 sharper in the male than in the female and with the lateral portions 

 concave; dorsal crest moderately high, the greatest height being on the 

 metazona which is arcuate somewhat independent of the prozona and 

 in the male being higher comparatively and more arcuate than in the 



