

1854.] 159 



nigris subtiliter punctato-striatis, antennis, abdominis segmento ultimo, pedibus- 

 que nigris, ill is articulo 6to septimo aequal':. Long. 4 47. 



Olivier, Ins. 88, tab. 1, ru. 2. 



Southern States, not very rare. I see no reason why this i not Trogosita 

 bi color Fabr. (Enc. Syst. Suppl. 50; Syst. El. 1, 152): the description is 

 "corpus medium; caput ferrugineum antennis oculisque nigris; thorax laevis 

 glaber ferrugineus macula media nigra; elytra laevia nigra; corpus ferrugineum 

 pedibus nigris;" this certainly approaches quite closely to the present specie?, 

 and is very different from any of those to which other authors have applied it. 

 On account of the slight difference in the antennae, this species is made by Che- 

 vrolat the type of a separate genus Janessa (vide Dej. Cat). 



2. L. p u n c t icol 1 i s, rufa nitida, thorace parce punctulato, latitudine non 

 longiore, antrorsum suban^ustato et lateribus rotundato, macula doraali rotunda- 

 ta ornato, elytris nigris subtiliter punctato-striatis ; antennis, abdominis segmento 

 ultimo pedibusque nigris, illis articulo 6to septimo fere sesqui minore. Long. 33. 



Say, Journ. Acad. Nat. Sc. 3, 462 : Am. Ent. 3, tab. 39. 



Pennsylvania. Except by the sixth joint of the antennae being intermediate in 

 size to the fifth and seventh, this species only differs from the preceding by the 

 smaller size, and by the sides of the thorax being rounded only towards the an- 

 terior angles. 



B. Antennae articulis 7-11 subito dilatatis, subaequalibus. 



3. L. last a, nigra, nitida, capite thoraceque laete runs, subtilius punctatis, hoc 

 latitudine longiore utrinque perparurn angustato, lateribus late rotundatis, elytris 

 striato-punctatis, interstitiis distincte punctulatis. Long. 35. 



Kansas River. Body elongate, black shining. Head rufous, finely not densely 

 punctured. Antennae shorter than the head and thorax, black ; joints 2 6 small, 

 6th hardly wider than the fifth; 7 10 broad, transverse, subequal ; 11th round, 

 almost equal in bulk to the tenth. Thorax, about one fourth longer .than wide, 

 with the widest part about the middle, very slightly narrowed towards the apex 

 and base, broadly rounded on the sides, bright rufous, convex, finely not densely 

 punctured. Elytra with fine, punctu red, not deeply impressed striae, which near 

 the tip are somewhat obliterated ; interstices distinctly finely punctured. Be- 

 neath, the head and prothorax are rufous, with the tip of the sternum and coxae 

 blackish; the other parts are black and very finely punctulate. 



4. L. c o 1 1 a r is, magis elongata, aeneo-nigra, thorace rufo subtiliter parcius 

 punctato, latitudine fere sesqui longiore, lateribus late rotundatis, elytris subtili- 

 ter punctato-striatis. Long. 32. 



One specimen from Georgia. Narrower than the preceding, and entirely 

 of the same form as L. trifasciata. Body black with a slight brassy tinge ; 

 head finely not densely punctured: antennae as in L. laeta. Thorax nearly one 

 half longer than wide, somewhat narrowed anteriorly, broadly rounded on the 

 sides, dull rufous, finely not densely punctured. Elytra with fine rows of punc- 

 tures becoming obsolete towards the tip, interstices very obsoletely punctulate. 

 Under surface black, with the exception of the prothorax, which is dull rufous, 

 with the tip of the sternum dusky. 



5. L. t r i f a s c i a t a, magis elongata, rufa nitida, capite, elytris basi et apice 

 late, abdominisque segmentis duobus ultimis violaceo-nigris ; thorace latitudine 

 fere sesqui longiore, parce punctato, lateribus versus basin fere rectis, tarsis 

 luscis, antennis nigris, articulis 3 6 rufescentibus. Long. *25 31. 



Say, Journ. Acad. Nat. Sc. 3, 462. Am. Ent. 3, tab. 39. 



Western States; occasionally found in Pennsylvania. The elytra are mode- 

 rately strongly punctato-striate ; the tip is almost smooth. In the female the 

 thorax is more convex and more rounded on the sides than in the male; the 

 apical margin of the thorax is frequently blackish. In both sexes the seventh 

 joint of the antennae is somewhat smaller than the eighth. The under surface is 

 sparsely punctured. 



6. L. pulchra, magis elongata, rufa nitida, capite, antennis, elytris basi et 



