367 



fJayne. 



Male. Antennal club very broad — in other respects like the preceding 

 species. 



Femrtle. Antennal club like the preceding species. 



This form may be easily distinguished by the plain piceous elytra, the 

 almost smooth thorax, which in the male has the margin dilated and con- 

 vex where it forms a roof for the antennal fossa, and the hind angles re- 

 tracted. The male club is very light in color and extremely broad. 



Occurs in California. 



C. triste Lee. Elongate-oval, black oi' piceous, convex, clothed Mdth 

 sparse, yellowish-red, stmi-erect pubescence. 



Head coarsely punctate, pubescence sparse and yellow. Antennae 

 light, last joint rufous or black. Thorax convex, hind angles acute in both 

 sexes, finely but very densely punctured, sparsely pubescent at sides. 

 Scutellum black, naked. Elytra entirely black, moderately coarsely punc- 

 tate, pubescence very spai'se, yellowish-red. Body beneath black, 

 covered with sparse, fine, yellow, semi-erect, hairs. Metasternum very 

 coarsely punctate. Legs entirely rufous. Length .08 inch ; 2 mm. 

 (Fig. 60.) 



Mile. Antennal club as in jireceding species but more elongate and 

 darker. 



Female. ' Antennal club as in rufiaorne, darker. 



The distinguishing diameters are, the plain dark colored elytra, the 

 finely but very densely punctured thorax, and the elongate antennal club 

 of two unequal joints. 



I can see no valid difference between this species and nigricorne Lee. 

 and picicorne Lee ; fusculum Lee. appears to be only a smaller variety 

 which is more pubescent. 



Occurs everywhere, in the Atlantic region. 



AXINOCERUS, n. g. 



Head large, front convex between the eyes, clypeus forming an angle 

 with the front, retracted (Fig. 64). Eyes large, globular, finely granu- 

 lated, entire, a distinct ocellus. Antennae inserted under the angle 

 formed by the meeting of the clypeus and front, of eleven joints, bearing an 

 enormous securiform club of one joint. (Fig. 63.) Thorax about twice 

 as wide at base, as long ; apex less than half the width of the base, mar- 

 gined ; sides arcuate, slightly flattened, margined ; posterior angles acute, 

 base slightly bisinuate, broadly lobed at middle, lobe truncate. Scutel- 

 lum small. Elytra with humeral angles not prominent, sides arcuate, 

 apices separately rounded. Antennal fossa large, somewhat triangular, 

 occupying the entire space between prosternum and lateral margin. 

 Mouth parts, except labrum, covered by the prosternum, which is broad, 

 moderately long, the anterior margin somewhat deflexed, the tip broadly 

 produced posteriorly, dividing the mesosternum. Mesocoxae widely sepa- 



