H. C. FALL. 129 



long as the head, eighth joint not wider than and similar to the seventh . 

 Head and prothorax coarsely closely punctate, the latter strongly nar- 

 rowed behind, the side margin narrow, evidently but briefly sinuate 

 at the hind angles, which are well developed though small and nearly 

 rectangular. Elytra narrowly oval, widest at middle, stria? well im- 

 pressed, intervals rather strongly biseriately punctate. Length, 5.1-5.3 

 mm. ; width, 1.9 mm. 



Described from two examples, the type taken by myself 

 at El Paso, Texas ; the other from Texas without specific 

 locality. 



This species is nearest marginata and was so named 

 for me years ago. Specimens of the latter species from 

 Ohio in the LeConte Collection, with which I have made 

 comparison, differ in being black with sides of elytra rufous, 

 head and prothorax less coarsely closely punctate, the latter 

 less narrowed behind, the angles a little less prominent, the 

 elytra more parallel. Collaris is of the same size and gen- 

 eral appearance but is still more flattened, with the pro- 

 thorax even more finely margined, and the hind angles 

 scarcely defined. 



T. californica Horn. 



This species is quite distinct from sinuata with which it 

 has been united as a variety in the Check List. The lattter 

 has the prothorax less narrowed behind than usual and more 

 widely margined than in californica. 



ELATERID^E. 

 L.IMONIUS Esch. 

 L. vernalis n. sp. 



Head and thorax aeneopiceous, margins, except sometimes the lateral 

 ones, more or less marrowly pale ; elytra reddish-brown, beneath pice- 

 ous, the prosternal lobe, sutures and side margins, and the abdominal 

 apex more or less pale. Antenna? longer than the head and prothorax 

 by about two joints (c?), or about reaching the hind angles of the 

 thorax (9); joints 2-3-4 gradually longer, the third scarcely wider 

 than the second ; fourth wider, triangular, nearly one-half longer than 

 wide ; following joints gradually narrower but scarcely longer than the 

 fourth. Head rather coarsely punctate, front flattened or feebly con- 

 cave, margin feebly sinuate at middle. Prothorax slightly longer than 

 wide, widest behind the middle, sides broadly arcuate and gradually a 

 little convergent from about the basal third, not sinuate before the 



TRANS. AM. ENT. SOC, XXXVI. (17) JUNE, 1910. 



