1853.] S61 



Descriptions of some vew species of Insects, nnth observations on described species* 



By S. S. Haldeman. 



Cecindela lecontei Ilald. Dull cupreous, beneath green, with cupreous 

 reflexions; white pubescent ; head rugulosejlongitudinally upon the front, and 

 transv^ersely behind ; labrum white, anterior margin blackish, short, transverse, 

 strongly tridentate in the nniddle ; palpi blackish green. Prothorax minutely 

 wrinkled, narrowed posteriorly, disc convex, transverse impressions and dorsal 

 line profound. Elytra convex, r'early double the width of the base of the pro- 

 thorax, finely and obsoletely punctured, with an irregular stria of large punc- 

 tures, base greenish; lutiules submargirial, distinct, and yellowish white, the 

 humeral one rectilinear, and extending to one-fourth the length of the elytra, 

 where it is incras>ated on the inner side, touching the medial fascia, which is 

 triangular, with the apex extending one third of the distance towards the suture; 

 the apical lunule is bent at a right angle, and reaches the suture. 



Allied to C. rugifrons and C. scutellaris, resembling the latter in the charac- 

 ter of the prothorax, and differing from the former in having the humeral lunule 

 entire. 



Wisconsin, Guex. Cab. Le Conte. 



C. ANcociscoNENSis i?rt/-;-i5. <' Ufper lip 3-toothed, thorax narrowed behind. 

 Bronzed blackish brown above, with white humeral and terminal lunule, and 

 intermediate angular band enlarged on the margin; body beneath green, tail 

 purple." Harris. 



Form rather slender, head tinged with metallic green, longitudinally rugulose, 

 especially upon the orbits; front with distant impre-^sed shallow punctures ; 

 labrum white or discolored, the margin obscure, strongly 3-toothed, with an 

 obsolete tooth on each side; mandiblps black, with the base white; antennae 

 and palpi metallic green and blue, with white hairs. Prothorax as wide as the 

 eyes, and with the scutel, minutely scabrous, anterior, posterior and dorsal lines 

 well impressed with metallic green, lateral margins punctate. Elytra minutely 

 punctate with blue or green impressed microscopic points, with an indistinct 

 subsutural irregular line of larger distinct punctures, and one or two very short 

 similar lines on the hymerns. Humeral lunule curving slightly inwards poste- 

 riorly, terminal lunule abruptly enlarged anteriorly, sometimes continuous with 

 the marginal portion of the middle fascia, which is behind the middie of the 

 elytron, "extending transversely less than half the distance towards the suture, 

 and bent backw^ard and inward, terminating in an enlargement near the suture. 

 Beneath and feet green, with white hairs. In the male the base of the maxil- 

 lary palpi is yellow. 



New Hampshire, Dr. Harris ; Philadelphia, Schafhii t ; Cab. Le Conte. 



EvARTHRUs GRAviDTTs. Black, somewhat shinin?, robust and depressed, pro- 

 thorax transverse, lateral margins reflexed, broadly rounded, slightly sinuate 

 posteriorly, dorsal and anterior line impressed, basal angles square, with two 

 well impressed longitudinal striae, the surface of this part and the posterior part 

 of the dorsal line being marked with irregular waved transverse striae. Elytral 

 striae well impressed, finely punctured toward the base, except the submarginal 

 ocellate row, interstices slightly convex. Length 101, breadth (elytra) 4 lines. 



Var. ^. Interstices of the elytra smooh, with the punctures more distinct. 



Var. C. Elytra smooth, the strioe and punctures indistinct. 



This species adds a group (2f,) to the live of Le Conte, <zivrn in the Journ. 

 Acad. Nat. Sci. 2d ser. 2, 227, and establishes a complete parallelism between 

 the two divisions of the genus Evarthru? formpd by him, the relations between 

 the sections 2e and 2r, being equivalent to those between la and lb. The cha- 

 racters of group f. are : Elytrorum striis non approximatis, thorace qvadrato, 

 postice utrinqve bi-impresso. 



EvARTHRus HEROS Say, (Ferouia) Journ. Acad. Nat. Sc. 3, 14.'5. Since Dr. 

 Le Conte alluded to this species, Journ. Acad. 2d ser., 2, 223, specimens have 



