262 GEO. n. HORN, m. d. 



narrowing at base, hind angles obtuse, disc moderately convex, median line 

 feebly but broadly impressed, basal impressions short, mt/derateiy deep, surfaee 

 coarsely and sparsely punctured, punctures denser at the base, less niinieroun 

 at the sides and along the middle. Elj'tra similar in form to memorntis, finely 

 but moderately deeply striate, strife punctured, intervals flat, moderately densely 

 and finely punctured, and s|)arsely clothed with short, pale rufous [lubescence. 

 Prosternum in front sparsely j)unctured, tip margined, episterna fbsoletely 

 punctured. Mctasternal episterna sparsely submuricately j)unotured, elong- 

 ate, margined. Abdomen as in niger. Epipleurse black. Length .50 inch; 

 12.5 mm. 



The color of the upper surface is nearly that of cDriHrollia, but 

 ■with head and thorax more brilliant. The basal marj^inal line is 

 rounded at the humeri, the third joint of the anteuiise not longer 

 than the fourth. 



I have in luy cabinet one of each sex, the male having unfortu- 

 nately lost the middle tibiae. I feel very certain of its position in 

 the present group from the thoracic sculpture, and the form of the 

 third joint of antenuDe and the rounded basal line. These three 

 characters taken together are in our fauna of equal value, with the 

 absence of pubescence on the male middle tibia. 



Occurs in Texas. Two specimens kindly given me by Mr. F. G. 

 Schaupp, of Brooklyn. 



12. C peiisylvaiiiciis. Say. — Beneath blacl:, legs pale, above green, 

 elytra darker. Head brilliant green, minutely punctulate, labrum feebly 

 emarginate, palpi slender, antennae rufous, three basal joints paler. Thorax 

 bright green, very little wider than long, sides moderately arcuate, feebly 

 sinuate posteriorly, hind angles acute not prominent, margin narrowly rufous, 

 disc moderately convex, basal impressions linear moderately deep, median 

 line finely impressed, surface with coarse punctures not very densely plaeed. 

 Elytra striate, striae punctured, intervals flat, moderately densely muricately 

 punctured, and with short, brownish pubescence, basal line arcuate at humeri, 

 Prothorax beneath coarsely but sparsely punctured, prosternum margined at 

 tip. Metasternal episterna coarsely and sparsely punctured, margined, form 

 elongate. Abdomen as in niger. Length .40 — .44 inch; 10 — 11 mm. 



Anterior femora of njale simple. 



I have seen a variety of this species in the cabinet of Mr. II. 

 Ulke, entirely green, nearly as in prashius, and which was from 

 California. 



Occurs principally in the Northern States and Canada, also Cali- 

 fornia and Oregon. 



This species having the prosternal episterna coarsely punctured, 

 can only be confounded with the next three species. The elytral 

 punctures being very distinct and submuricate in this, and very 

 feeble in the others, will serve to distinguish it. 



