398 REVISION OF THE TENEBRIONID2E OF AMERICA, &C. 



II. tumesceus, Lee, New Species, 184. 



A species differing abundantly from our only other species of oval convex form, in the 

 sides of the thorax being sub-angulate. It resembles cereus, Germ., in form. The broadest 

 portion of the thorax is in front of the middle, in cen us nearer the base. 



Length . 12 inch. 



California. Collection of II. I'lke. 



The following species are described in the books, and from the very short descriptions 

 are not recognisable. 



II. americanus, Beauv. Ins. 122, pi. 30, li;^. (i. 



II..' t list is. Beauv. Ins. 157, pi. 30b, fig. 1. 



The former may possibly he II. undulatus, Lee. while the latter does not appear to 

 belong to the genus. 



TKIHE XXXI MERACANTHINI. 



\ single genus represents this tribe in our fauna. 



MERACANTHA, Kirby. 



Meracantha, Kirby, Faun. Bor. Amer. p. 237. 



M. contracta, Beauv. (Helops) Ins.. j>. 122. pi. 30, fig. 0; canadensis, Kirby. (Meracantha) 1. e.; tumidus, 

 Mcls., . Belops) Proc. Acad. :!. 61. 



\ common species found over a large part of our eastern regions. Color dark bronze, 

 shining. Head deeply inserted, antenna' long, slender, scarcely thicker at tip. Anterior 

 portion of presternum very short. Anterior femur with an obtuse tooth. 



Length .44— .50 inch. 



TRIBE XXXII — STRONGYLIIXI. 

 STRONGYLIUM, Kirby. 



Strongylium, Eirby, Trans. Linn. Sue. XII. p. 417. 



Two species of this genus are known to American students. 



s. tenuicolle, Say, Belops) Journ. Acad. ill. 67; Lac. (Strong.) Genera V. I s ;. 



Thorax quadrate or longer than wide. Antenna' slender, last joint yellowish. 

 Length .56 inch. 



"Middle and Western States. 



s. term in a turn, Say, (Tenebrio) Journ. Acad. V, 341; Lac. Strong.) Genera V, 4S7. 



Thorax broader than long, with a shallow longitudinal median groove. Antenna' as 

 in tenuicolle. 



Length .4(5 inch. 



Western States. 



