NORTH OF MEXICO. 



347 



rounded, margined, margin slightly reflexed, hind angles distinct, disc, moderately convex. Elytra elongate oval, 

 slightly emargiuate at base, humeri distinct, elytra! margin distinct, slightly refloxed. Surface finely and sparsely 

 punctured. 



The head and thorax are much more opaque than the elytra. The thorax is narrower 

 than the elytra, and has a slight median depression near the base. The sides of (he elytra 

 are very feebly rounded and are almost sub-parallel, the apex is not prolonged. The up- 

 per surface of the body is feebly convex, the under surface paler in color and more shining. 



Length .33 inch. 



One male, from Fort Tojon, California. 



ETJPSOPHUS, 



n. g. 



Montiini Mat, transverso, slightly narrower behind, anterior angles not prominent, anterior margin truncate, sup- 

 ported on a very short broad gular peduncle. Ligula transverse, slightly emarginate in front, basal membrane not 

 visible, palpi short, last joint flattened, conical, longer than the preceding. Maxillary palpi long, last three joints 

 sub-equal, conical, the terminal slightly flattened, Labrum transverse, partly concealed. Head elongate, eyes broad, 

 feebly emarginate and distant from the thorax. Front hemi-hexagonal, feebly converging in front, anteriorly broadly 

 emarginate, suture indistinct. Antennae longer than the head and thorax, slender; drat two joints short, third longer, 

 scarcely equalling the third and fourth together, .joints four to ten gradually decreasing, last joint longer and pointed 

 at tip. Scutellum oval. Elytra broader at base than the thorax, humeri distinct. Epipleuree entire, narrow and 

 horizontal. Trochantin of middle coxa; distinct. Metasternum long, body winged, intercoxal process of abdomen tri- 

 angular. Legs slender, tarsi long, sparsely clothed with short spinous hairs. First joint of hind tarsi longer than the 

 second and third, last joint nearly equal to the two preceding. Tibial spurs distinct. 



This genus has proved the most troublesome of any of the genera to which I have; 

 been required to assign a. place. 



The hind, margins of the' third and fourth ventral segments do not exhibit in so marked 

 a degree the coriaceous margin, which has been taken as the character dividing the family 

 into two sections, and it is only with some difficulty, or by the undue protrusion of the 

 terminal segments, that the membrane connecting them becomes visible. In outline the 

 insert resembles some species of Ilimatismus, or our own E^ntragua 8ubmetdlUcu8, Lee. 

 There are, however, no other affinities between this insect and the Epitragini, as will be 

 seen by the smaller nientum, the middle trochantin and the form of the head. The pro- 

 sternum is deflexod behind, and the mesosternum oblique. This genus and the preceding, 

 in an arrangement of the genera at large, should in all probability constitute a tribe by 

 themselves, near the Ooniaderides of South America, though abundantly distinct by many 

 characters. From Meephus this genus may be known by the form of nientum and gular 

 peduncle, by the margins of the front not being reflexed and by the form of the antennae. 



E. castaneus, castaneous, moderately shining, bead rather densely punctured in front of eyes, spansely on the 

 vertex. Thorax sub-quadrate, moderately convex, slightly broader than long, truncate in front, feebly rounded at 

 ba.se, sides feebly rounded anteriorly, very slightly sinuous behind, hind angles rectangular. Surfaoe sparsely punc- 

 tured, Elytra elongate oval, more than twice longer than broad, moderately convex, sparsely punctured and faintly 



rugose near the bast;. Beneath castaneous, shining, very sparsely and finely punctured. 



Length .54-60 inch. 



