182 NEUROPTERA OF NORTH AMERICA. 



oblong, yellow; membranule nigro-cinereous ; 8 10 antecubitals ; 

 6 t postcubitals ; three discoidal areolets, then two. 



Length 25 31 millim. Alar expanse 38 47 millim. Ptero- 

 stigma 2 2J millira. 



Hob. Cuba (Poey). 



15. D. elisa! 



Diplax elisa Hagen ! 



Fuscous, head yellowish in front, the labium with a medial, 

 fuscous stripe ; front with a narrow black band before the eyes ; 

 thorax fuscous, the middle sulcus obscurer ; the sides fuscous or 

 yellow, moderately punctated with black ; feet black, base of the 

 femora partly yellowish; abdomen a little thickened, triquetral, 

 black, segments 1 7 with a dorsal, larger, phalerate, yellow spot; 

 appendages yellowish ; genital lobe narrow, small, triangular ; 

 vulvar lamina broad, oval, the apex excised ; wings hyaline, the 

 anterior margin and base flavescent, an apical and ante-apical 

 fuscous spot ; anterior wing at base with a small spot, and the pos- 

 terior ones with a large fuscous spot, which is lacerated, divided, 

 veined with yellow, and a broad yellow band ; antecubital veins 

 margined with fuscous in part; pterostigma oblong, large, yel- 

 low ; membranules white ; eight antecubitals ; 7 8 postcubitals ; 

 three discoidal areolets. 



Length 33 millim. Alar expanse 60 millim. Pterostigma 3 

 millim. 



Hob. Bergen Hill, New Jersey (Guex) ; Chicago ; New York 

 (Osten Sacken). 



16. D. ornata! 



Diplax ornata Ramb. Neuropt. 96, 93. 



Yellow varied with black ; head yellow in front, labium with a 

 black stripe in the middle ; front with a narrow black band before 

 the eyes ; thorax yellow, dorsum with a broad, medial, black stripe ; 

 sides yellow, with three oblique, black, somewhat brassy stripes ; 

 abdomen triquetral, black, segment 1 7 with a dorsal, large, pha- 

 lerate, yellow spot ; superior appendages yellow, the inferior one 

 fuscous ; genital lobe narrow, linear ; vulvar lamina short, trun- 

 cated, each side with an inflated tubercle ; feet black, the anterior 

 femora yellowish at base; wings hyaline, the posterior ones with a 

 large, basal, fulvous spot, and two lacerated, fuscous stripes, the 



