40 Journal New York Entomological Society. |Vo1. ix. 



will be found to be accompanied by some structural dilTerence that, 

 when once correlated, will serve to determine what the storing habit 

 of the species is. 



Though all the species heretofore mentioned were interesting ob- 

 jects of study, all paled before the little blue and green Augochlora 

 humeralis which was followed through all its stages. 



The life history of that species, with figures illustrating also some 

 of the matters hereinbefore referred to, will form a second part of this 

 essay. 



NEW SPECIES OF HETEROCERA FROM TROP- 

 ICAL AMERICA.— I. 



By William Schaus. 



SYNTOMID^. 

 Pseudosphex noverca. 



Head grayish. Collar black, fringed posteriorly with gray. Thorax black; a 

 transverse gray line posteriorly. Abdomen black ; a gray streak laterally at base ; 

 ventral valve fringed with white. Wings hyaline, the veins black. Primaries : cos- 

 tal margin broadly, inner margin narrowly on basal half, suffused with dark brown ; 

 fringe dark brown. Secondaries : the basal half of costa narrowly suffused with dark 

 brown. Expanse, 27 mm. 



Habitat : Castro, Parana. 

 Bombiliodes jamaicensis. 



Palpi and head black. Collar and thorax black ; collar and patagias with a crim- 

 son streak, mottled with white scales, and inwardly shaded with metallic blue scales. 

 Abdomen crimson ; a dorsal black band ; the segments posteriorly black ; underneath 

 pale brown. Thorax below and legs black, the latter streaked with blue ; tarsi circled 

 with white. Wings transparent. Primaries : the margins black ; the apex broadly 

 black ; a large black spot at end of cell touching costa, and a smaller spot about cen- 

 ter of cell resting on costa, and not reaching the median vein. Secondaries : apex 

 broadly, outer and inner margin narrowly black. Antennas black, tips yellow. Ex- 

 panse, 39 mm. 



Habitat : Jamaica. 

 Bombiliodes xanthogastroides. 



Antennas black, streaked with white at apex. Head black ; vertex dark blue. 

 Collar black with two dark blue spots. Thorax black. Abdomen black basally, 

 shaded with blue laterally ; the last four segments orange ; underneath the last three 



