534 TERTIARY INSECTS OF NORTH AMERICA. 



margin, the others, however, curving inward to abut against them, the 

 outermost meeting the innermost at the apex; the elevated narrow inter- 

 spaces smooth and shining ; the whole piceous. 



This can hardly be referred to Loricera, but I can find no other genus 

 with which it better agrees. I am inclined to the belief that it will be 

 found to belong to an extinct type of Loricerini. There seems to be, as 

 there, a faint internal plica, but the specimen is broken only at just this 

 point. 



Length of elytron,. 3.3 nim ; breadth, 1.4 mm . 



Clay beds of Scarboro, Ontario. Canada. One specimen, No. 14559 

 (GK J. Hiude.) 



ELAPHRUS Fabricius. 

 ELAPHRUS IRREGULARIS. 



PI. 1, Fig. 56. 



An elytron only is preserved, which by its surface sculpture appears to 

 resemble E. viridis, of California (which I have' not seen), more than any 

 other, though in size it agrees better with E. riparius and E. ruscarius, the 

 nearest allied of the species I have examined. The elytron is distinctly 

 slenderer than in these latter species, with the middle scarcely, if at all, wider 

 than the base, but with entirely similar apex. Surface uniformly punctured, 

 the punctures coarser than in E. riparius, with ill-defined obscure fovese, the 

 basal one of the second series from the suture being the only one as distinct 

 as in E. riparius ; spaces between the fovea? remarkably elevated, forming 

 longitudinal, more or less tortuous ridges which are highest (and rarely 

 polished) in longitudinal dashes as long as the diameter of the fovese and in 

 the same lines with them, i. e., between fovese of the same longitudinal series 

 and not in the interspaces between the series. It is in these elevated spaces 

 that its relationship to E. viridis especially appears, and their irregularity, 

 through their more or less tortuous connecting, less elevated ridges, which 

 has suggested the name. Color dull piceous, with faint dark metallic green 

 reflection, which is quite distinct on the inflected margin. 



Length of elytron, 4.5 mm ; breadth, 1.5 mm . 



Clay beds of Scarboro, Ontario. One specimen, No. 14527 (GK J. Hinde). 



