854 Trans. Acad. Sci. of St. Louis. 



the abdomen; bead longer tban wide, tbe eyes well developed and 

 bligbtly prominent; antennae as Ions; as tbe bead and protborax, dls- 

 tlnctly|.and j^radaally incrassate distally, tbe second joint as long as tbe 

 next two combined, tbe subapical transverse; protborax Tery slightly 

 wider tban the bead and almost as long as wide, widest anteriorly, 

 where tbe sides are rounded, thence ratber strongly converging and 

 straigbter to tbe obvioasly rounded basal angles, tbe surface rather 

 broadly but feebly impressed along the median line almost to tbe apex; 

 elytra not quite as wide as tbe protborax and tbree-fonrtbs as long, 

 angularly emarginate toward the suture at tip, tbe sides feebly diverg- 

 ing from tbe humeri, which are gradually rounded to the protborax and 

 not exposed at base; abdomen but little longer tban tbe remainder of 

 the body, parallel, as wide as tbe el}tra, tbe first three tergites very 

 narrowly and extremely feebly impressed at base; hind tarsi shorter 

 than in fletcheri and with the basal joint distinctly longer tban the sec- 

 ond — not shorter as in maritima, the claws minute. Length 1.8 mm.; 

 width O.S mm. California (8ta. Barbara) obscnra n. sp. 



The basal impressions of the abdomen are much larger 

 and deeper in fletcheri than in maritima or ohscura and the 

 last may be distinguished from maritima by its smaller size, 

 relatively narrower protborax, darker color, longer basal joint 

 of the hind tarsi and closer abdominal punctuation. 



Amblopusa Csy. 



The chief points of distinction between this genus and 

 Bryohiota Csy., are the very broad sub vertical hypomera and 

 short third antennal joint of the former. In the latter genus 

 the hypomera, although only feebly inflexed, are narrow, as 

 usual, and the third antennal joint is distinctly elongate, in 

 fact almost as long as the second ; the eyes, silso, although small 

 and coarsel}'^ faceted, are better developed. The following 

 species departs radically from brevipes in its larger size, very 

 much longer tarsal claws and more developed eyes : — 



Form slender, parallel, dull, very minutely and densely sculptured, the punc« 

 tures very fine, cloae-set and indistinct, somewhat more visible on the 

 elytra, extremely minute, close-set but evident on tbe abdomen, which ii 

 only very obsoletely reticulate and rather shining; color pale rufo- 

 testaceons, the abdomen black, feebly paler at tip, the legs pale; pu- 

 bescence rather long, pale and conspicuous except on tbe abdomen; 

 head large, scarcely longer tban wide, feebly inflated at base, subde- 

 pressed, feebly impressed on the median line toward base, the eyes 

 small, evenly oval, consisting of about twenty coarse facets, tbe pos- 



