102 NEUROPTERA OF NORTH AMERICA. 



ferior one broad, bifid, hardly shorter ; wings hyaline, pterostigma 

 pale fuscous. Male. 



Fourteen antecubitals ; 11 12 postcubitals ; two discoidal are- 

 olets. 



Length 50 millim. Alar expanse 64 millim. Pterostigma 3 

 nrillim. 



Hob. Hudson's Bay. 



This species is very much like G. serpentinus Charp. ; of Europe. 



Subgenus Gomplms. 



8. G. spinosns! 



Gomphus spinosus Selys t Monog. Gompli. 120, 35 ; pi. vii, fig. 2. Selys, 

 Synops. 40, 51. 



Fuscous, spotted with yellow ; head yellow, with a black band 

 before the eyes; dorsum of the thorax fuscous, a medial stripe 

 dilated in front, and a subcontiguous streak each side, yellow; sides 

 yellowish; feet black, the anterior femora beneath yellowish; pos- 

 terior femora extremely long, spinous ; abdomen long, yellow, a 

 broad, brownish-black stripe upon each side; superior appendages 

 divaricated, trigonal, the apex acute, recurved, upon the under 

 side on the middle, a blunt tooth ; the inferior one broad, forked ; 

 the vulvar lamina narrow, bifid; wings hyaline, pterostigma large, 

 yellow; 13 14 antecubitals; eleven postcubitals; two discoidal 

 areolets. 



Length 54 61 millim. Alar expanse 76 80 millim. Ptero- 

 stigma 4 millim. 



Hob. Georgia. 



0. G. armatus. 



Gomphus armatus Selys ! Monog. Gompli. 122, 36. Selys, Synops. 40, 52. 



Fuscous, spotted with yellow ; head yellow, front with a trans- 

 verse black line inferiorly ; thorax fuscous, a middle stripe, dilated 

 in front, and a humeral and antehumeral streak, yellow ; sides yel- 

 low, with two fuscous stripes; feet black, anterior femora yellowish 

 beneath; posterior femora extremely long, spinous ; abdomen long, 

 the apex very much dilated, yellow, a broad brownish-black stripe 

 each side; appendages like those of G. spinosus, pale fuscous; 

 wings hyaline; pterostigma large, yellow. Male. 



Fifteen antecubitals ; ten postcubitals ; two discoidal areolets. 



