NO. 2146. SOME AMERICAN FOSSIL INSECTS— COCKERELL. 105 



COLEOPTERA. 



SAPERDA LESQUEREUXI, new species (Cerambycidae). 



Plate 2, fig. 1. 



Gall on small branch of Populus lesquereuxi Cockerell, fusiform, 

 about 13 mm. long and 6.5 broad, exactlj^ like the galls of the living 

 /S*. moesta Le Conte. 



Miocene shales of Florissant (University of Colorado Expedition). 



CALANDRITES HINDSI, new species. 



Plate 2, fig. 3. 



Elytron 8 mm. long, 2.8 broad; as preserved ferruginous; base 

 truncate ; inner basal angle obliquely truncate, apparently indicating 

 a rather large scutellum; inner (lower) margin concave; apex obtuse; 

 10 rows of pimctures, all except those nearest the margin coarse; 

 second and third rows (counting from inner side) meeting eighth 

 and ninth at an angle near apex ; fourth and fifth rows close together, 

 joining in the subapical region, but not forming an angle ; sixth and 

 seventh rows free below, cut off by the obliquely ascending eighth; 

 second row with about 31 punctures ; fourth with about 25. 



In Eocene rock, southeast corner of North Park, Colorado (N. E. 

 Hinds), University of Colorado Museum 5799. Scudder described 

 CalaTidrites as follows : " Elytra, which seem from their elongate 

 form and the character of their markings to be not far removed from 

 the much smaller species of the old genus Calandra, though it is 

 certainly possible that they may belong in a very different group. 

 They both belong to rather large species, and agree in having 10 

 punctured striae." The present species is considerably larger than 

 either of Scudder's but by its coarse punctures comes closest to C. 

 defessus. The large size readily distinguishes our insect from all 

 other known American Eocene Calandridae. 



OPHRTASTITES HENDERSONI, new species. 



Plate 2, fig. 2. 



Elytron 5.5 mm. long, 2.35 broad; as preserved blackish; convex, 

 outer margin strongly convex ; apex angular ; nine deep striae, with- 

 out any distinct punctures. In Eocene rock, southeast corner of 

 North Park, Colorado (N. E. Hinds), University of Colorado Mu- 

 seum 5799. It is given the name of Prof. J. Henderson, curator of 

 the university museum, well known for his writings on Colorado 

 paleontology and zoology. This agrees well with Scudder's blanket 

 genus Ojyliryastltes^ but is distinguished by the very convex outer 

 margin and the lack of distinct punctures. 



The strata furnishing this and the last species are of somewhat 

 uncertain age, but probably either Fort Union or Wasatch. The 

 locality is in Arapahoe (or Muddy) Pass. 



