April, '08] ENTOMOLOGICAL NEWS. 1 77 



broad black shining band on the occiput and the vertex attenuated 

 anteriorly; a small indistinct reddish-brown spot above each eye; ros- 

 trum yellow with a brown spot on each side close to the base ; palpi 

 brownish, lighter at the joints; first two segments of the antennae 

 yellow, others wholly brownish-black, middle segments slightly excised 

 below; thorax sulphur yellow; dorsal stripes black, shining, the median 

 one slightly dilated anteriorly; collare orange-yellow in the middle, 

 blackish or brownish on the sides; a small back dash in the dorsal- 

 pleural membrane just before the base of the wing; pleura sulphur- 

 yellow, variegated with one or two reddish-yellow spots ; scutellum 

 reddish-brown; metanotum yellow with a faint reddish-brown spot 

 posteriorly; halteres brownish-yellow, darker toward the tip; coxae 

 and base of femora light yellow ; femora and tibia brownish-yellow, 

 black at the tips ; tarsi black ; abdomen yellow with dorsal, lateral and 

 ventral, interrupted black stripes ; eighth and ninth tergites of male 

 wholly black; eighth sternite black, the posterior angles and a narrow 

 border of the deep V-shaped incision yellowish, posterior angles bear- 

 ing a few yellow hairs of moderate length; appendages of the hy- 

 popygium yellow ; eighth segment of female black, ovipositor reddish- 

 yellow, upper valves long, slender, very slightly decurved at the tip, 

 lower valves not reaching to the tip of the upper valves ; wings hya- 

 line ; costal and subcostal cells with a slight yellowish tinge ; stigma 

 brown; second posterior cell sessile. Length, male 13 mm., wing 13 

 mm., female, 14 mm., wing 13 mm. 



Hab. — Wyoming - . One male, one female. 



Much like P. vittula Lw. but may be distinguished by the 

 fewer lighter markings on the pleura and particularly by the 

 deep V-shaped incision on the posterior margin of the eighth 

 sternite of the male. 



Pachyrhina occidentalis n. sp. 



Yellow ; head opaque, orange-yellow above, much lighter yellow be- 

 hind the eyes and below ; occipxit with an arrow-shaped brownish spot ; 

 rostrum, palpi and first three segments of antennae orange-yellow, re- 

 maining segments of antennae dark brown; palpi darker toward the 

 rip; thorax light yellow, dorsal stripes brownish-yellow or reddish- 

 yellow, broad, shining, the lateral ones expanding somewhat anter- 

 iorly; the sides of the collare, the coxae and irregular spots on the 

 pleura, brownish or reddish-yellow; thoracic suture marked with black 

 at both ends and with a black spot in the middle; three black spots 

 along the dorso-pleural membrane, the first just back of the collare, 

 the second a short distance in front of the wing and the third at the 

 base of the wing; scutellum and metanotum with a broad, reddish- 

 yellow stripe; halteres yellowish at the base, darker toward the tip, 



