92 BULLETIN 31, UNITED STATES NATIONAL MUSEUM. 



of Syrplius sometimes assume); vertex dark metallic green, emitting^ a 

 stripe of the same color, which reaches the base of the antenna?, where 

 it expands a little ; between this stripe and the eyes the front is yellow. 

 Antennae black, sometimes faintly reddish on the under side, near the 

 suture of the second and third joints; third joint rather larae, oval, 

 blunt. Thoracic dorsum of arather bright metallic green; on each side 

 a yellow stripe runs from tlie humerus to the callosiry near the scutel; 

 the latter yellow, the extreme base and corners blackish, or brown. 

 Pleurae with a large, illdetined yellow spot below the wings. First ab- 

 dominal segment with a yellow spot each side (just under the halteres); 

 the tirst cross-band, (on the second segm<Mit), is either interrupted by a 

 verj^ narrow black line in the middle, or entire : the second band is co- 

 arctate in the ujiddle, its hind margin being a shadow obtuse angle; the 

 same may be said of the tliird band, except that the obtuse angle is 

 deeper, and often has a notch in the middle, which sometimes cuts the 

 band in two; there is a narrow fourth band at the base of the fifth seg- 

 ment, encroaching upon the hind margin of the preceding segment; the 

 fifth segment has a narrow yellow posterior margin. Legs yellow, hind- 

 legs black or brown, except the base of the femora, and a space on both 

 sides of the knees. Wings with a distinct brownish tinge on the distal 

 half, anteriorly; stigma brownish; sometimes the whole wing has a 

 brownish yellow tinge. 



"Habitat, West Point, X. Y., in Sei)tember 8-10, three females; Illi- 

 nois; Pennsylvania. (The specimen from the latter locality is smaller, 

 wings more hyaline, legs and autenn;e of a paler coloi). The first and 

 third bands are as often interrupted as not; the second often shows a 

 vestige of an interruption in the shape of an indistinct blackish line in 

 the middle." — Osten Sacken, 1. c. 



A single female specimen from Connecticut (Di. L. T. Day) agrees 

 very well with the foregoing descri[)tion, except that the third joint of 

 the antenuii; is black above and at the tip, and the other joints are red- 

 dish. The first and third cross bands of the abdomen are narrowly in- 

 terrupted, the second entire, but emarginate behind. 



Xanthogramma divisa. 



Xanthogramma divisa Willistou, Proc. Aiu. Phil. Soc, xx, 311. 



Habitat. — Washington Territory, White Mountains! 



9 . Length 9 to IT"". Face and cheeks yellow, or reddish-yellow. 

 Face nearly perpendicular, gently concave below the antenna', and with 

 a large obtuse tubercle below. Front above metallic greenish-black, 

 continned as a broad stri])e to the base of the anteniue, somewhat ex- 

 panded below; on the sides yellow. Antenna? black; somewhat red- 

 dish below on the sides of the second, and of the third joint near the 

 base. Dorsum of thorax deep metallic green, with rather ill-defined 

 yellow lateral stripes. Pie u roe with a large ill-defined spot. Scutellum 

 a somewhat translucent yellow, its base narrowly black. Abdomen : 



