J M ERIC AN PALEOZOIC INSECTS— IIANDLIRSCH. 



779 



MYLACRIS ANTHRACOPHILA Scudder. 



Miflacris antJirdcophila iScrDDER, Ueol. ^urv. Illinois, III, 1SH8, p. 568, fiji's. o, 6; 

 Mem. Boston Soc, III, 1879, p. 45, pi. v, figs. 6 to 8; Bull. U. S. Geol. Surv., 

 No. 124, 1895, p. 43, pi. i, figs. 1, 4. 



Locality. — Colchester, Illinois. Pennsylvaiiian; Kittanning- 'i (x\lle- 

 gheny) stage. 



MYLACRIS ELONGATA Scudder. 



Mi/IihtIx eloni/ntit Scidder, Bull. U. S. (leol. >Surv., No. 124, 1895, ]>. 41, pi. i, fig. (i. 



Locd/ift/. — Mazon Creel\^ near Morris, Illinois. Penns^^lvanian; 

 Kittanning i (Allegheny) stage. 



Bo/otyj,e.—CiiC'^o. 88049, U.S.N.M. 



.'MYLACRIS SELLARDSIl, new species. 



Mi/lacris elongata Sellards (not Scudder), Aiuer. Jour. Sci. (4), XVIII, 1904, 

 p. 125, fig. 8, pi. I, fig. 1. 



Locality. — Mazon Creek, near Morris, Illinois. Pennsylvanian; 

 Kittanning ': (Allegheny) stage. 



I am not convinced that the specimens investigated by Sellards 

 l)elong to Scudder's 2fyhicris elomjata. They appear to l)e larg<'rand 

 to have more copiously branched veins. The lai'va' mentioned b}^ Sel- 

 lards T shall discuss separately. 



MYLACRIS SIMILIS, new species. 



Ljocality. — Mazon Creek, near Morris. Illinois. Pennsylvanian; Kit- 

 tanning ? (Allegheny) stage. 



Fig. ss.— MYLACRIS similis. 



Front wing, 35 mm. long, shaped very much like that in Mylacru 

 elongata. Radius with about 5 branches, the tirst 2 of which are fur- 

 cate. Media and cubitus seem to be somewhat less strongly branched. 



Daniels collection. Reverse of holotype in the U. S. National 

 Museum: Cat. No. 35573. 



