GOMPHTJS. 105 



with a stripe upon the middle, and one each side, laterally, broad, 

 black, divided with yellow ; feet black, the anterior and posterior 

 femora partly yellowish ; abdomen dilated at the apex, black, a 

 dorsal line broader at the base, yellow, at the apex wanting ; a 

 basal, lateral yellow stripe, and the eighth and ninth segments, each 

 side, yellow; appendages black ; vulvar lamina narrow, two-parted ; 

 wings hyaline, pterostigma yellow; twelve antecubitals ; 10 — 11 

 postcubitals ; two discoidal areolets. 



Length 48 millim. Alar expanse 64 millim. Pterostigma 3 

 millim. 



Hah. New York (Schaum) ; Virginia (Osten Sacken). 



15. G. villosipes ! 



Gomphus villosipes Selys ! Synops. 34,41. — Gomphus pallidus Selys! Mo- 

 nog. Grompk. 145, 47 ; pi. viii, fig. 6. (partly.) 



Greenish-yellow, spotted with black ; head yellowish, with a 

 black stripe in front ; thorax greenish-yellow, dorsum with a stripe 

 upon the middle, and a lateral, broad one, each side, divided with 

 yellow, black ; sides with an interrupted, black line ; feet black, 

 anterior femora beneath yellowish, tibise with an external yellow 

 line ; apex of the abdomen a little dilated, dorsum of the abdomen 

 black, with a maculose, yellow stripe upon the middle ; segments 

 8 and 9 black, 10 yellow ; appendages yellowish, black at apex, 

 the superior ones divaricated, deplanated, the apex acute and 

 curved inwards ; the inferior one broadly forked, the apex recurved ; 

 wings hyaline, pterostigma yellow. Male. 



Eleven antecubitals ; ten postcubitals ; three discoidal areolets. 



Length 41 millim. Alar expanse 59 millim. Pterostigma 3-J 

 millim. 



Hah. North America (Vienna Museum). 



16. G. pallidus ! 



Gomphus pallidus Ramb.! Neuropt. 163, 12. Selys ! Monog. Grompli. 145, 

 47 ; pi. viii, fig. 6 (Partly). Selys ! Synops. 33, 40. 



Testaceous; head pale; thorax villous, olivaceous, dorsum each 

 side, with an obsolete rufous line ; feet testaceous, femora above 

 and tibise beneath blackish-brown ; abdomen long, the ninth seg- 

 ment longer than the others; apex hardly dilated, testaceous, each 

 side with a broader subfuscous stripe, which is wanting at the 



