742 PROCEEDINGS OF THE ACADEMY OF [NoV. 



a distinct superior and inferior margin, the latter emarginate, but 

 not very deeply. Pi'othorax rugulose, a small tuft of appressed 

 hairs on each side of the pronotum. Dorsulum shining, the punc- 

 tures indistinctly outlined, well separated. Parapsidal grooves 

 almost absent, only one pair faintly apparent. The greater part of 

 the anterior half of mesopleurse depressed, shining, almost impunc- 

 tate, the bulged pai-t reticulated, its posterior border shining and 

 almost impunctate. Scutellum and postscutellum closely sculp- 

 tured, opaque. The enclosed area on metanotum shining, almost 

 twice as long as broad at base, parallel-sided, bisected by a raised 

 line, the rest of the metanotum reticulated, the meshes large and of 

 irregular outline, the sides of the metathorax channeled, smooth, 

 shining and reticulated in parts. Wings slightly smoky, stigma 

 light brown, nervures paler, third submarginal cell practically 

 absent, a short stump of a vein on the radius is all there is of the 

 third transverse cubitus, a stump, a continuation of the cubitus, 

 extends a short distance beyond the insertion of the second trans- 

 verse cubitus. First segment of abdomen about twice as long as 

 broad at apex, convex but not strongly, shining, sparsely punc- 

 tured with poorly defined punctures, the sides closely punctured or 

 rugose. Second segment polished, the punctures on it v^ry fine 

 and widely separated. The rest of the segments very finely sculp- 

 tured, finely punctured near the apex. The area on the third 

 dorsal segment is highly polished and extends to the punctured 

 margin of the segment, the high polish is confined to a deltoid 

 anterior portion of the area, in back of which is a transverse band 

 of a more subtle character or between polished and opaque, at the 

 base of the segment this area is about one-thii'd as wide as the 

 entire width of the segment. The second dorsal segment has a 

 line of appressed silvery pubescence near the margin, and about 

 half as long as the margin, but equally removed from base and apex, 

 the representative of this line on the second ventral segment is 

 about one fourth the length of that on the dorsal segment. The 

 pubescence is erect, long and fine silvery to pale golden and almost 

 equally moderately distributed. 



Brownish testaceous, like some specimens of amber. Posterior 

 legs pale to dark brown, anterior legs whitish-brown. Flagelluni 

 dark brown, mandibles tipped with deep brown. 



Type, Coll. Acad. Nat. Sci. Philadelphia. 



Type locality. La Jolla, Cal. 



