NATURAL SCIENCES OP PHILADELPHIA. 65 



The uniform bluish-green color, transversely impressed thorax, 

 and simply punctate elj'tra render them readily recognizable. 



LONGITARSUS, Chev. 



Also easily known, generall}^, by the elongate first joint of the 

 posterior tarsus and the pale testaceous color; tlie elytra are 

 punctate, thorax not impressed. The species are bej'ond my skill 

 to unravel from the incomplete material before me. 



Balophila, Foudr, (Glyptina, Lee). 



Thorax not margined at the base or impressed ; elytra striate, 

 first joint of posterior tarsi tolerably long. Anterior coxal cavi- 

 ties open. 



1. B, spuria (Lee), Col., Kansas, p. 26. 



Subovate, shining, above testaceous, beneath darker, legs pale 

 red ; head and thorax sparingly jjunctulate ; elytra with the inter- 

 stices smooth, and a small scutellar stria apparent; punctures 

 tolerably deep, apparent ; body black, smooth, shining. L. .6. 

 Kansas, Pennsylvania, North and South Carolina, Maryland. 



B. lissotorques (Lee), is a variety with the thorax almost 

 smooth. 



2. B. cerina (Leo.), Pac. K. Rep., p. 68. 



More elongate, body pale beneath, thorax testaceous, elytra 

 yellow, obsoletely punctate striate. L. .65. S. Jose (California). 



3. B. cyanipennis, sp. n. 



Ovate, narrowed in front, black ; head, thorax, legs, anten- 

 nae, and scutellum red; elytra blue; facial carina rather broad; 

 thorax convex, sides deflexed, rounded ; surface sparingh' punc- 

 tate ; elytra striate punctate, interstices smooth. L. .6. Texas 

 (Belfrage, G99). 



Orchestris, Kirby. Faun. Bor. Amei*. (typ., nemorum.) 



Anterior coxal cavities open behind ; elytra punctate ; thorax 

 not margined at base, second and third joints of antenna equal. 



A. Elytra vitiate. 

 1. 0. lepidula, Lee, Pac. R. Rep., p. 68. 



Subovate, reneous, black, shining; head, thorax, and elytra 

 distinctly and closely punctate ; elytra with a narrow uniform 



