378 REVISION OF THE TENEBRIONIR^ OF AMERICA, 



A. calif omi ca, oval, robust, piceous. Head broad, moderately convex densely and rather coarsely 



punctured. Thorax transverse, ncarlj three times as broad as long, convex, densely and coarsely punctured and 

 fringed with long yellowish hairs; anteriorly emarginate, angles not prominent; base rounded, angles obtuse; sides 

 stronglj rounded, slightly narrower behind than in front. Elytra broadlj oval, scarcel] longer than broad, not 

 broader at base than the thorax; base feebly emarginate; sides fringed with long yellowish hairs; surface rather 

 densely, coarsely and very irregularly punctured. Under surface of body with tV-. d punctures. Presternum 



and legs with long yellow hairs. Body winged, 

 th ,10 .20 inch. 



As compared with the figure of .1. sardoa, Gene, in Duval, pi. 70, fig. 350, our sp< - 

 is more robust, with a shorter thorax and with the sides "much more strongly from the 

 apex to base, the hind angles being very obtuse. The punctures arc denser and coarser. 

 Occurs in Owens' Valley, Cal., and the adjacent regions of Nevada. 



TRIBE XXVII — DIAPERINI. 



Body usually oval or rounded, sometimes elongate (Hypophlceus). Eyes prominent, 

 very feebly emarginate in front. Antenna' always with the outer joints thicker and per- 

 foliate. Mentum small, gular peduncle distinct. Anterior coxae sub-transverse ; middle 

 coxa' with distinct trochantin. Legs slender; spurs small; tarsi pubescent. 



This tribe may be distinguished from those which precede by the very convex eyes, 

 more prominent than the sides of the front, and from the Bolitophagini by the gula not 

 heiny transversely silicate. 



Our genera maj be divided into the following groups: 

 Diaperes. Body broadly oval: eyes distinctly emarginate in trout; pygidium covered. 

 First joint ol hind tarsi not longer than the second. diaperis. 



Firsl joint of hind tarsi equal to second and third. boplocephala. 



First joint of hind tarsi longer than second and third. 



Epipleurse entire; intercoxal process of abdomen acute. 

 Mesosternum concave. 



Last joint of maxillary palpi broadly triangular. PLATYDEMA. 

 Last joint of maxillary palpi elongate triangular, 



enter side much longer. alphitophagus. 



Mesosternum prominent. liodema. 



Epipleurae short ; intercoxal process of abdomen truncate, scaphidema. 

 II Ycoi'iii.iEi. Body cylindrical ; eyes distinct!} emarginate in front; py- 

 gidium exposed. 

 (One genus in this group). hypophixei s, 



Pentaphylli. Bodj elongate oval; eyes not emarginate in front: py- 

 gidium covered. 

 Last five joints of antennse forming a loose club. pentaphyllus. 



