1873.] °V£> [Horn. 



long, lateral sulci moderate anteriorly, deep and broad at base, margin 

 convex, shining with a constriction slightly behind the middle ; sides of 

 thorax pubescent. Elytra with three entire dorsal striae and subhumeral 

 entire. Pygidium and propygidium smooth shining. Presternum be- 

 tween the coxae narrow with elevated marginal line meeting in front 

 above the middle of presternum. Prosternal lobe in front feebly emar- 

 ginate. Length .08 inch ; 2 mm. 

 Collected at Sonoma, California. 



Echinodes, Zimm. 



Prosternal lobe elongate, broad and slightly deflexed. Antennae with 

 the first joint elongate truncate at tip and concealing the joints of the 

 funiculus when viewed from the front, second joint inserted near the 

 base of the first, club elongate oval, glabrous, truncate at apex. 



E. setiger, Lee. Proc. Acad., 1859, p. 31G ; Zimm. Trans. Am. Ent. 

 Soc, 1869, p. 253. 



Broadly oval, moderately convex, rufo-piceous, moderately shining. 

 Front obtusely carinate and with a transverse groove at the base of 

 clypeus. Clypeus moderately prominent, narrow at base, dilated toward 

 apex and acutely emarginate, on each side of base of clypeus a short 

 acute process. Thorax nearly three times as wide at base as long, apex 

 moderately emarginate, base arcuate, sides moderately arcuate and 

 gradually narrowing to apex. Surface shining with sparsely placed fine 

 setigerous punctures, at sides with fine stria close to the margin, Elytral 

 margin continuous with the thoracic, acute nearly to apex and with 

 six dorsal and a sutural stria replaced entirely by punctures, the two 

 outer stria with the punctures in a doable series, those of the inner rows 

 gradually more confused and broader, each puncture setigerous, inter- 

 vals smooth shining. Propygidium and pygidium coarsely but sparsely 

 punctured, each puncture bearing a short seta. Presternum at tip emar- 

 ginate, bistriate, strips divergent at tip, and continuing to the base of 

 lobe. Lobe broad, deflexed, smooth. Mesosternum produced at middle. 

 Tibiae elongate oval, finely spinulose on the outer margin. Entire 

 length .06 inch ; 1.5 mm. Plate V., fig 4. 



Resembles Eretmotus in the form of the antennas and somewhat in the 

 form of the legs, but differs abundantly from all the Het(eHus-\ike genera 

 by the broader and longer prosternal lobe. The peculiar sculpture of 

 the head recalls that of some species of Dyschirius in the mode of its 

 formation. 



Rare in South Carolina and Georgia, occurs with a pale species of 

 Ant, the name of which is unknown to me, and which has the meta- 

 thoracic segment bispinous, and the first two segments of the abdomen 

 slender and gibbous above. 

 a. p. s. — VOL. XIII. 2m 



