194 GEO. H. HORN, M. D. 



punctured near the base. Body beneath moderately densely punctate. Legs 

 black, femora closely punctate. Length .56 — .64 inch ; 14 — 16 mm. 



The differences between this species and the immaculate varieties 

 of fossa tor are mentioned under that species. It may also be noticed 

 that the pubescence of the abdomen in this is always more distinct 

 and coarser than in fossator, which has rather a velvety or sooty 

 appearance. 



Occasionally specimens occur in which the velvety spots of the 

 abdomen are i'eeble or removed by abrasion, these are still more 

 confusing but may be referred here by the elytral sculpture which 

 is a genuine punctuation, while in fossator it is punctate-scabrous. 

 Rarely individuals are seen with the base of the antennae pale or 

 with the tip of the abdomen slightly paler, specimens of this char- 

 acter have been sent me by M. Fauvel, under the names hasicornis 

 and ana/is, they are however genuine tomentosus. 



Occurs from the Middle States to Louisiana. 



S. fossator Grav., Micr. p. 164; Erichs. Staph, p. 386; immaculatus Fauv. 

 mss. var. — Form moderately robust, black, subopaque, elytra usually with a 

 large spot of golden pubescence at outer apical angle. Head subtriangular, 

 densely coarsely punctured, front rather flat, surface with short black pubes- 

 cence. Eyes obliquely oval, truncate in front. Antennae piceous or black, 

 attaining nearly the middle of the thorax. Thorax as wide as the head, as 

 wide as long, very little narrowed in front, surface very densely punctured, a 

 very narrow smooth median line posteriorly, sparsely clothed with short black 

 pubescence. Scutellum velvety. Elytra a little wider than the thorax, as 

 broad conjointly as long, surface densely punctate-scabrous with a slight 

 violaceous tinge, clothed with short black pubescence, the outer apical angles 

 frequently with large spot of golden red pubescence. Abdomen above black, 

 subopaque, moderately densely punctate, sparsely clothed with short black 

 pubescence; beneath distinctly iridescent not densely punctate, sparsely pubes- 

 cent. Body beneath sparsely punctulate at middle, more densely at the sides. 

 Legs black, femora moderately densely punctulate. Length .50^.72 inch; 

 12.5—18 mm. 



Two varieties of this species are well known, the one with a large 

 spot of orange colored pubescence at the outer apical angle of each 

 elytron, the other entirely black. The first is easily known from any 

 of our other species, the second may be mistaken for tomentosus. The 

 latter species has a double row of velvety spots on the abdomen, and 

 the elytra are of a pure black color, while fossator has no velvety 

 spots and the elytra always show a slight violaceous tinge. In well 

 preserved specimens the sixth abdominal segment above shows at base 

 three small golden spots. 



Occurs from Michigan to Georgia, living in fungi. 



S. conies Lee, New Species, 1863, p. 36. — Form moderately elongate, 

 piceous with feeble surface lustre, legs pale, abdomen paler at tip and with 



