170 LE CONTE.— LONGICORN COLEOPTERA 



7. L. INTERRUPTUS, piceus, cinereo fuscoque pubescens, thorace dense punctato, disco utrinque transversim 



impresso, subinaequali, tuberculo lateral! obtuso, elytris parce punctatis, cinereo nebulosis, punctis atris 

 seriatis maculaque obscura laterali ante medium signatis, antennis pedibusque annulatis. Long. -30 — -SS. 

 Amniscus interruptus Hald. 48. 



New York, Guex. This species resembles very much L. macula, but is less broad, 

 and the lateral tubercles are more prominent : the dorsal tubercles are very indistinct, 

 distinguished only by their black color. The markings of the elytra are not distinct, 

 being rather clouds than spots, the tip is scarcely perceptibly truncate. 



8. L. CRYPTUS, " body densely covered with short prostrate dark reddish hair concealing the punctures, 



antennffi not longer than the body, joints gradually diminishing in length, eleven in number, the 

 terminal ones with a gray basal annulus, thorax with the anterior and posterior diameters equal, with a 

 tubercle or short obtuse spine each side: elytra with the slight punctured series " (striae?) "almost 

 concealed by the hair, a sutural stria obliterated at base, but passing around the tip and uniting with a 

 stria on the exterior margin which reaches the base; tip rounded." Long. '6. 

 Lamia crypta Say. Descript. New Ins. of Louisiana, 5. 



New Orleans. I have never met with this species. 



9. L. FASCicuLARls, " thorax white, elytra pale brown, variegated with dusty spots and elevated fasciculated 



points, whitish at base, and with an oblique whitish band behind the middle." Long. •35. 

 Lamia (Mesosa.) fasicular is Harris. Trans. Hartford Soc. Nat. Hist. 1, 88. 



It resembles L. macula, but is less convex and less short. I have not met with it. 



LIOPUS Serv. 



Tarsi posteriores articulo l^oelongato. 



Antennse non piloste, articulo primo elongato, cylindrico. 



Mesosternum apice acutum vel truncatum. 



Abdomen articulo ultimo superiore rotundato, inferiore vix emarginato. 



Femora anteriora valde clavata. 



The body is depressed, sometimes narrow, and sometimes broad : in the latter case 

 the posterior femora are as strongly clavate as the others, and the elytra are bidentate 

 at tip. Mr. Haldeman has separated these last as a distinct genus, (Hyperplatys) but 

 after careful examination, I think it better to consider them as forming a single genus 

 with the elongate forms, with which they agree perfectly in the structure of the 

 antennas and tarsi. The development of the antennae of the males almost equals that 

 which exists in ^Edilis. The females are not provided with a tubular appendage to 

 the abdomen. Section C resembles strongly the preceding genus, and differs only 

 by the elongation of the first joint of the tarsi. It forms a portion of Amniscus Dej. 



A. Corpus latiusculum, elytris apice bidentatis, femoribus posticis clavatis. 



1. L. MACULATUS, testaceus, dense cinereo-pubescens, thorace lateribus ante spinam rectis vix obliquis, 

 maculis 4 dorsalibus nigris transversim positis, elytris punctatis, maculis rotundatis nigris adspersis 



