14 NATURAL HISTORY BULLETIN 



antennal club much more gradually formed and the prothorax without sharp 

 raised lines. The type and only known species is P. miocenus, described 

 below. 



P. MIOCENUS n. sp. (Plate II, Figs. 9, 10, 11.) Form somewhat obscured 

 through the breaking of the margins, but not much more elongate than 

 that of PMceonemus catenulatus. Head narrower than the prothorax, shape 

 destroyed through the obliteration of the margin, vertex strongly and closely 

 punctured. Eyes indistinguishable. Antennae showing only fragmentary 

 portions, the club of one is intact and is formed of two joints, the three 

 preceding joints successively narrower as the head is approached. Protho- 

 rax with the sides damaged, upper surface strongly sculptured with close 

 set circular punctures. Elytra a little over three times as long as the 

 prothorax and conjointly about two-thirds as wide as long, broadest about 

 the middle, not strongly tapering in either direction but becoming somewhat 

 suddenly conjointly rounded at the apex. Sculpture composed of a sutural 

 and submarginal and three deep, smooth, discal grooves, between which are 

 double series of elongate punctures, the punctures of each row separated by 

 a transverse raised line, the lines and punctures of each row of a double 

 series alternating with those of its fellows, as shown in the detail drawing. 

 Length, 4.25 mm. 



Station number 13. One specimen, collected by Mrs. W. P. Cockerell. 

 The type is in the Museum of the University of Colorado. 



The specimen is one received directly from Professor Cocker- 

 ell, and I believe it is undoubtedly a reverse, in which case the 

 head and thorax are granulate (a common structure in the 

 Colydiidfe), the elytra with submarginal, sutural and three 

 discal cost*, each elytron with four double series of elongate 

 tubercles as in Phloeonemus catenulatus. The club of the an- 

 tenna is so gradually formed that it might about as well be 

 called three jointed as two jointed. 



Dermestes Li nil. 



D. TERTiARius n. sp. (Plate V, Figs. 1, 2.) Form moderately elongate. 

 Head wanting. Prothorax crushed, but the remains show it to have been 

 broader at base than at apex, the base slightly prominent at middle but 

 not lobed, the apex weakly arcuately emarginate. Elytra not striate, sub- 

 parallel to behind the middle, thence tapering to the apices which are 

 bluntly pointed. Abdominal segments subequal, except the first which is 

 longer. The entire surface of the prothorax and elytra is finely, regularly, 

 and rather closely punctured, the punctures bearing moderately long hairs. 

 Length, from front of pronotum to apex of abdomen, 7.50 mm. 



Station number 14. One paired specimen collected by Mrs. W. P. Cock- 

 erell. The type is in the American Museum of Natural History. 



