WICKHAM: new MIOCENE COLEOPTERA from FLORISSANT. 433 



LATHRIDIIDAE. 



CORTICARIA OCCLUSA, Sp. nOV. 



Plate 2, fig. 3. 



Form moderately elongate. Head large, finely punctured, nearly 

 as wide as the prothorax and not much shorter though the anterior 

 margin is not well defined and is probably somewhat extended in ap- 

 parent length by confusion with the crushed mouthparts. Eyes and 

 antennae not definable. Prothorax about one half broader than long, 

 sides moderately arcuate, disk punctured somewhat more coarsely 

 than the head. Elytra rather coarsel3% closely, but not deeply punc- 

 tured, with no sign of strial arrangement. Legs wanting. Length, 

 to abdominal apex, 3.10 mm. 



Described from a single specimen. 



Type.— No. 2,451 M. C. Z. Florissant, Col. (No. 7,109 S. H. 



Scudder Coll.). 



This is smaller and rather more evidently punctured than C. yetre- 

 facta. In life, with the abdomen in normal position, it would be of 

 about the same size as the recent C. pubescens. 



CORTICARIA PETREFACTA Wickham. 



Two specimens, one with counterpart, No. 2,452-2,454 M. C. Z. 

 (No. 7,711, 520 and 1,020 S. H. Scudder Coll.). 



CORTICARIA EGREGIA, Sp. noV. 



Plate 2, fig. 4. 



Form moderately elongate. Head about equal in length to the 

 prothorax, finely, evenly and very closely punctate. Prothorax about 

 one and one half times as broad as long, the apparently unbroken side 

 nearly straight, apex not much narrowed, surface extremely closely 

 punctate, more strongly and coarsely than the head. Elytra, taken 

 conjointly, about one and one half times the prothoracic width, punc- 

 tuation confused, much sparser and apparently a trifle coarser than 

 that of the prothorax. Legs wanting. Length, to abdominal apex, 

 4.25 mm. 



