436 F.\»[|I,Y XI. — ST,\1'11YL1N1]KH. 



well iiM that ol' tboi'iix, dcMisoly aud strii,'iisrly iiuuctalo. Tlioriix tlivoo- 

 tiftlis as wide as head, median smooth line narrow. Elytra one-thinl wider 

 but not longer than thorax. AI)d(inion at basi' as wido as elytra. Fifth 

 ventral of male witli two small tubercles on hind margin. Lenglli 3.7-4 mm. 



Kosciusko bounty; rare. June 25. Sifted from vegetable 

 debris at edge of tamaraclc swamp. A member of the boreal fauna. 



jS'. trisiis llclsh., 5.5-7 mm. in length, has 1)een taken near (Un- 

 cinnati and ranges from Pennsylvania to Arizona. It doubtless oc- 

 curs in southern Indiana. 



LIV. Mbgastilicds Casey. 1SS9. ((Jr., "large + style.") 



This genus was erected by ("asey upon a very stout form with 

 a small orbicular head, having the body, especially the margins, 

 thickly clothed with short, stiff bristles. 



S.3.5 (9650). JlEfiASTTT.icus FOBMiCAKius (.^ascy, lOnlom. Auier., V, ISM), is:;. 

 Dark reddish-brown, opaque; liead and abdomen piccous. Ilenil ne.-irly 

 circular, not iiunctured but coarsely alutaceous; neck exceedintily small: 

 anteume reaching base of tliorax, stout, the .I'oints closely united. Thorax 

 slightly longer than wide, widest one-third from ape.x, the sides tlience 

 rapidly converging to apex, nearly straight to base; disk coarsely alu- 

 taceous, the median line smoother. Elytra three-fourths wi<ler and one- 

 third longer than thorax, finely, sparsely and roughly punctate. Abdomen 

 short and broad, strongly margined, less than one-half longer than elytra, 

 finely and densely punctate. Length 5 nun. 



Putnam and Spencer counties; rare. April !)-June i:i. Occurs 

 in the large cone-shaped nests nl' ants, especially those of Fonitica 

 rxsrclo'idcs. 



LV. Leptogenius C'asey. l!)()5. 



]\Iinute reddish-brown sjiccies havini;' the eyes very small; la- 

 hrum with four teeth; antenna' e.\tremel.^• short, not longer than 

 head; neck about one-fifth as wide as head; thora.x oblii|iiely nar- 

 rowed in front. Two species occur in the Kasteni Unit<'d States, 

 one oF which has been taken in Indiana. 



s:!(i {!li;r)7). LEinxjiiicNii's bkevh'oknis <:ase.\-, 'I'l-ans. .Vc.ad. Sci. St. r^caiis, 

 XV, ]!KI.-|, I'll. 

 Slender, subitarallel, rei'bl,\- convex. I'.-ile reddish-brown, <'los<My, coarsely 

 aud rugosely punctate ; elytra somewhat darker. Head longer than widi>. 

 its sides parallel. Thorax tiiree-fourths the width of head, alinnt as long 

 as wide, base twice as wide as apex, median line feebly eai-inate Elytra 

 together as long as wide, one-third wider and a fourth longer than thorax. 

 Abdomen as wide as elyli-a. Length 1,7 mm. 



