DESCRIPTIONS OF NEW SPECIES. 225 



fasciis tribus trans versis rectis apiceque nigris, apice oblique truncatis ; 

 pedibus rufo-testaceis, antenuis validis nigris. Long. 10 mm. 



One specimen ; Owens' Yalley, Dr. Horn. Allied to L. 

 Iseta Lee., and having the antennae equally thick, but differing 

 from both it and L. nitens by the elytral fasciae narrower and 

 perfectly straight, so that the yellow predominates, while in the 

 species just named the black is the ground color ; the bead of the 

 suture and a narrow basal margin are also black. 



546. !L. quadrata. Robnsta nigra, breviter fulvo-pubescens, capite 

 thoraceque confertim punctatis, illo angulis posticis brevibus rectis 

 rotundatis, genis oreque sat prolongatis ; hoc lateribus pone medium 

 fere parallelis, antice obliqnis, apice fortiter constricto, basi declivi, et 

 utrinque vage concavo, angulis posticis parvis acutis ; elytris subpa- 

 rallelis (9), apice parum dehiscentibus rotundatis et marginatis, sub- 

 tilius punctatis, macula laterali ad medium alteraque ad dodrantem 

 parvis pallidis ; antennis pedibusque ferugiueis. Long. 11 mm. 



One specimen ; Saskatchewan. I would be tempted to place 

 this as one of the varieties of the Protean L. instabilis, but the 

 elytra are less dehiscent and more broadly rounded at tip, the 

 antennae and legs are ferruginous, (always black in instabilis), 

 and the pubescence is very short. 



54*7. L.. grossa. Crassa, nigra opaca, subtus brevissime cano-pubes- 

 cens, (supra glabra ?) capite thoraceque dense punctatis, illo angulis 

 posticis tumidis rectis rotundatis, genis oreque mediocribus ; prothoracc 

 latitudine breviore antrorsum multo angustiore et fortiter marginato, 

 basi transversim depresso, lateribus subsinuatis, angulis posticis acutis, 

 disco utrinque vage foveato, subcanaliculato ; elytris sat dense punctatis, 

 fere parallelis, apice rotundatis et marginatis. Long. 18 mm. 



One ? ; California, Dr. Horn. Quite different from the neigh- 

 boring species by the coarser punctuation ; the sides of the tho- 

 rax are subsinuate and less distinctly angulated than in L. insta- 

 bilis, and the mouth and genae are shorter. In this latter character 

 it resembles L. Matthewsii; the form is, however, stouter, the 

 antenna thicker, and the punctuation much coarser. 



Since publishing the description of L. Matthewsii I have re- 

 ceived from the same collection a male. It differs by less robust 

 form, and very long antennae, one-fourth longer in fact than the 

 body, and stouter than in the ? . There is scarcely any ventral 

 difference between the two sexes. The apical blotch of the ely- 



