no. 2358. NEW SPECIES OF FOSSIL INSECTS— COCKERELL. 35 



and scutellum with numerous dark punctures; abdomen with dark 

 lateral spots markiug the junction of the segments, the margin dis- 

 tinctly projecting at these points. 



Type. — Dinidorites margiformis, new species. 



DINIDORITES MARGIFORMIS, new species. 



Plate 8, fig. 10. 



Length, 9.6 mm.; head, 1.6 mm. long and about 2 mm. broad; 

 antennae, 4.8 mm. long, the first two joints pale with the apex nar- 

 rowly dark, the others broadly darkened; pronotum about 2 mm. 

 long and 4 mm. broad, with three pallid lines joined transversely at 

 posterior end by a curved one; scutellum broadly triangular, sides 

 longer than base, length about 3 mm.; abdomen about 4.6 mm. wide 

 near base, its apex over 3 mm. from end of scutellum. 



Eocene; "Cathedral Bluffs south of Little Tommies Draw at point 

 where samples were taken." Colorado. (Winchester 17-5, U. S. 

 G. S.) 



The Dinidorinae include 10 living genera, widely scattered over 

 the earth. The character of the short scutellum was especially noted 

 by Scudder in his studies of the American fossil Pentatomidae. The 

 present genus has the narrow form of Byrsodepsus, but the pronotum 

 i^ much more like that of Cyclopelta. The abdominal margin is like 

 that of Byrsodepsus. Aside from the scutellum, there is a curious 

 resemblance to Pentatoma appendiculatum Heer, at least in the mark- 

 ing of the pronotum and abdomen. There is probably no real affinity ; 

 the true generic position of Heer's fossil is unknown. 



Holotype— Cat. No. 66927, U.S.N.M. 



COLEOPTERA. 

 Family CARABIDAE. 



LEBIA PROTOSPILOPTERA, new species. 



Plate 8, fig. 2. 



Elytron 3.7 mm. long, about 1.4 mm. broad; shape as usual in the 

 genus, the apex broadly truncate as in L. divisa LeConte; nine very 

 distinct delicate striae, under a high power resolved into series 

 of punctures, and a short (about 550 //long) stria at the inner basal 

 corner; a series of large round punctures, appearing colorless on a 

 dark ground, situated as follows: One near the apical margin, about 

 240 n from the inner corner; two, close together, near the rounded 

 outer apical corner; seven in the interval between the first and 

 second striae, counting from without, and mostly touching the second 

 stria. Elytron as preserved brown, with a very large subquadrate 

 colorless humeral patch, extending as far as the second stria from the 

 inner margin, and with a large colorless subapical patch, one side of 



