752 BOSTON JOURNAL 



GORYTES Latr. 



G. PHALERATUS. — Black, sericeous, varied with yellow j wings 

 dusky. 



Inhabits Indiana. [368] 



Body blackish, impunctured : head golden sericeous : antennae, 

 basal joint yellowish : nasus and mouth, excepting the tip of the 

 mandibles, pale yellow : thorax, posterior margin of the collar, 

 abbreviated line over the wings, and wing-scale, yellow : scutel 

 yellow : wings dusky, purplish-fuliginous, tinged with yellowish 

 towards the base ; stigma small ; second cubital cellule obviously 

 hexagonal : metathorax with two large, oblong-oval, yellow spots ; 

 triangle at base destitute of small lines and with but a single 

 impressed line : tergum, basal segment yellow ; posterior narrow 

 margin, and lobed spot on the disk communicating with the base, 

 black : second segment yellow on the posterior margin, the yel- 

 low rather dull and a little undulated on its inner edge : third 

 and fourth segments with obsolete yellowish posterior margins : 

 pleura somewhat silvery sericeous, with three almost confluent 

 yellow spots in a line with the collar : feet pale, honey-yellow ; 

 thighs and coxae, with more or less of black above. 



Length about half an inch. 



This is a large species. The character which Jurine mentions 

 as common to all the species, of having behind the scutel a tri- 

 angular space, in which parallel lines are sculptured, is so modi- 

 fied in this species as to present the triangle with only a simple 

 longitudinal impressed line. 



NYSSON Latr. 



N. AURINOTUS. — Black ; metathorax two-spined; tergum with 

 three lateral spots. 



Inhabits Indiana. 



Body black, punctured : head before with a slight yellowish 

 sericeous reflection ; mandibles piceous ; collar [369] with an ob- 

 scure golden margin, terminating in a spot : metathorax with a 

 golden spine each side, in a golden spot : wings dusky : tergum 

 on the posterior edges reflecting whitish j at base of the first seg_ 

 ment, obscure golden sericeous ; posterior margins of the first, 



[Vol. I. 



