376 Memoirs on the Coleoptera 



Distinguishable from the preceding by its small size, more 

 abbreviated outline, finer, sparser and inconspicuous vestiture, 

 shorter and more compact antennae and other characters. 



Trichobaris latipennis n. sp. — Oblong, moderately convex, somewhat 

 shining, black throughout; beak in the male very thick, only slightly 

 arcuate, rapidly but arcuately declivous at base above, moderately 

 clothed with pale scales, densely sculptured and fully as long as the 

 prothorax, the antennae long; prothorax large, a fifth wider than long, 

 the sides distinctly converging, feebly sinuate at the middle, gradually 

 rounding anteriorly to the constriction; sculpture consisting of long 

 sinuous rugae, the tumid smooth median line distinct; pale scales largely 

 denuded in the type but slender; basal spots and scutellum of the 

 trinotata type; elytra one-half longer than wide, parallel, circularly 

 rounding in posterior fourth or slightly more, nearly a third wider than 

 the prothorax, the humeral callus moderate; striae not coarse, deep, not 

 clearly punctate, the intervals convex, finely, confusedly and sub- 

 rugulosely punctate, the fine hair-like pale scales unusually short, not 

 close and rather inconspicuous; abdomen nearly as in mucorea and 

 striatula, impressed broadly toward base in the male, the fifth segment 

 similarly having a small medial ligula at tip. Length (cf) 5.7 mm.; 

 width 2.4 mm. Texas. 



Resembles striatula somewhat but with broader elytra and still 

 more convex intervals, larger and slightly more transverse pro- 

 thorax and still stouter beak. 



Trichobaris apicata n. sp. — Oblong-elongate, rather convex, black, 

 closely covered with slender whitish hair-like scales, not in mutual con- 

 tact but obscuring the integuments, with three denuded spots as in 

 trinotata; the scales become larger and dense in an apical fascia on the 

 pronotum; on the under surface and legs throughout they are large, 

 oval and in mutual contact, except on the subdenuded propleura and in 

 the usual subapical polished spot of the abdomen; beak in the male 

 rather thick, squamose, feebly arcuate and barely as long as the pro- 

 thorax, the upper surface abruptly almost vertically declivous at base; 

 prothorax a sixth wider than long, the feebly convergent sides subsinuate 

 medially, rounding anteriorly to the constriction, the punctures coarse, 

 dense and rugulosely confluent; elytra scarcely one-half longer than wide, 

 parallel, rounded at apex and fully a fourth wider than the prothorax, 

 the humeral callus not evident; striae and sculpture largely concealed 

 by the vestiture, the striae sometimes indicated by slight parting of the 

 latter; abdominal depression of the male very feeble, densely covered 

 with large and unmodified scales. Length {d') 4.7-5.7 mm.; width 

 1.9-2.2 mm. Utah (St. George) to Columbus, Texas, and San Diego, 

 California. Eight specimens, the female unrepresented. 



Allied rather closely to mucorea, but with denser and more con- 

 spicuous vestiture, also by the form of the short ligula at the apex 



