THE CANADIAN ENTOMOLOGIST. 277 



tooth first named, with a distinct notch intervening, and the other near the 

 apex ; branches of the inferior appendage tapering, upcnrved, their tips 

 appearing outside the inner angle of the superiors. 



Vulvar lamina of female completely divided into two short, broad 

 lobes, and hind femora each with a double row of less numerous, much 

 longer and stronger spines, otherwise similar to the male. 



One male, Ft. Reed, Fla., 6th March, 1876, collected by Professor 



J. H. Comstock, and in the Cornell University collection ; and a number 



of specimens of both sexes, Gotha, Fla., 27th and 28th February, collected 



by Miss Matilda Wichtendahl, and in the collection of Mr. C. C. Adams. 



Our smallest species; as closely related to G. militaris as to any 

 other. 



Ophiogomphiis pJialeraius, n. sp. 



Length 47 mm., abdomen 35 mm., hind wing 30 mm. 



Face yellow, vertex black, except two rings on the base of each 

 antenna, two minute crescents surrounding the lateral ocelli in front, the 

 ends of the postocellar ridge and a spot on the rear, including the middle 

 of this ridge ; occiput yellow, with a thin fringe of brown hair on the 

 straight hind margin. 



Thorax thinly pubescent ; prothorax brown, with a yellow twin spot 

 on the middle and a larger yellow spot on each side. Dorsum of thorax 

 with a moderate stripe of brown, divided by yellow on the middle of the 

 carina, contracted on the collar ; humeral and antehumeral stripes of 

 brown, confluent above and below, around a narrow dividing line of 

 yellow. Sides of thorax yellow, with narrow lines of pale brown on the 

 sutures. Legs yellow, a blackish spot on the apical fourth of the femora 

 above, tibise and tarsi black, with a yellow stripe on the external face of 

 the tibia? ; knees yellow. Wings hyaline ; costa yellow, stigma pale 

 brown ; antecubitals of the fore wing 31, of the hind wing 9, postcubitals 

 of all wings 9-10. 



Abdomen brownish, with a row of broad spots on the dorsum of 

 segments 1-9, covering segment 1, restricted to the basal two-thirds of 

 segments 2-9, best defined on the middle segments. Segment 10 wholly 



