1853.] 359 



Middle and Southern States, not rare. The anterior tibiae are regular in all 

 my specimens. 



In Dejean's Catalogue this species is placed under Lycoperdina, but the pro- 

 sternum between the anterior coxas although narrow is very distinct. 



Endomychus Weber. 



Antennas articulo 3io vix longiore, tribus ultimis abrupte maioribus, distanti- 

 bus obliqiiis, ultimo ovali ; palpi maxillares dilatati, truncati ; prosternum inter 

 coxas anticas latiusculum, postice productum et rotundatum ; mesosternum 

 postice truncatum. 



1. E. biguttatus, oblongo-ovalis, coccineus, nitidus, capite thorace obso- 

 lete punctulato, scutello antennis pedibusque nigris, elytris subtiliter punctatis, 

 guttis utrinque duabus nigris, posteriore maiore. Long. '16. 



Say, Journ. Ac. Nat. So. 5, 96. 



Middle, Southern and Western States, rare. 



Mycetina Miils, 



Antennae articulo 3io longiore, articulis ultimis maioribus, distantibus obliquis, 

 ultimo truncate; palpi maxillares tenues, fere acuminati; prosternum inter 

 coxas anticas latiusculum, mesosternum postice truncatum. 



a. Corpus glabrum ; thorax basi marginatus ; prosternum spatulatum. 



1. M. perpulchra, oblonga, nigra nitida, thorace rufo, medio nigro, im- 

 pressionibus basalibus brevibus linea basali coniunctis, elytris subtiliter punc- 

 tulatis maculis utrinque duabus laete rufis, tarsis piceis. Long. *16. 



Endomychics perpzdcher Newman, Ent. Mag. 5, 390. 



Lycoperdi7ia ^-guttata Mels. Proc. Ac. Nat. Sc, 3, 176. 



Middle, Southern and Western States. Varies with the thorax immaculate ; 

 the mesosternum is sharply margined between the coxae; the anterior tibiae of 

 the male are flattened, and slightly angulated internally. 



b. Corpus parce subtiliter pubescens ; prosternum spatulatum. 



2. M. testacea, elongata, sordide ferrugihea, parce fulvo-pubescens, tho- 

 race linea lateraii distincta, impressionibus basalibus brevibus, linea basali 

 coniunctis, elytris parce punctatis, antennis piceis, basi pallidioribus. Long. '15. 



Lycoperdina te-ttacea Ziegler, Pioc. Ac. Nat. Sc. 2, 272. 



Lycoperdina pilosa Mels. Proc. Ac. Nat. Sc. 3, 176. 



Middle and Southern States. The anterior tibiae appear alike in all my spe- 

 cimens. 



Lycoperdina lutea (Mels. loc. cit.) as far as I can judge from the badly pre- 

 served specimen which served as the type, is merely an immature specimen 

 of this species. This insect is Ejnpocns ferrugineus Dej. Cat., but not Lyco- 

 perdina ferruginea Lee. Ann. Lye. 1, 172. 



c. Corpus hispidum ; prosternum dilatatum, non spatulatum. 



3. M. hispida, ovalis, obscure ferruginea, pilis erectis dense hispida, tho- 

 race linea lateraii a margine remota, impressionibus basalibus brevibus, linea 

 basali transversa nulla, elytris punctatis nigris, margine usque ad apicem lat 

 ferrugineo, antennis nigro-piceis, basi ferrugineis. Long. '15 '18. 



Erotyhis hispidus Herbst. Kiifer, 8, 374, tab. 137, fig. 13. 



Lycoperdina vestita Say, Journ. Ac. Nat. Sc. 5, 304. 



Middle and Southern States. Varies with the elytra entirely ferruginous. The 

 prosternum is here much wider than in the preceding species, is not prolonged 

 over the mesosternum, but articulated closely with it ; the mesosternum is 

 therefore flat, not concave, as in the two above described. This diflerence 

 seems to have been considered as generic by Chevrolat, and the species occurs 

 in Dejean's Catalogue as Ephebus limbattis. 



