THE MELANDRYID BARK BEETLES. 



12S9 



li3S2 (7CA7). Ab.strulia tks.sellata Melsh., Proc. I'hil. Acad. Xat. Sci., II, 

 ]S44. 114. 

 Oblou^c-oval. convex. I'iceous. feebly sliiniug; auteiinte aud legs dull 

 yellow: elytra eaeb with about tea siuuius. mine or less coujieL-ted yelluw- 

 isb splits, (me of which is a reversed cresceut or I' close to suture ou middle 

 third. Auteiiute scarcely as Imif; as bead aud thura.x, the club disMuctly 

 shorter thau stem, the third joiut as long as the next two combined. Thj- 

 rax nearly twice as wide as long, sides broadly rounded, the base and aj.e.c 

 cijual in width; surface deeply and rather coarsely and elo/ely punctate. 

 Elytra two-thirds longer than wide, more coarsely and sparsely punctate 

 than thorax. Length 3..j mm. 



Laporte and Lawreuee counties; rare. June 10-June 14, Oc- 

 curs on clecayino- twips. (.'ase.v's type of A. niaculata was from In- 

 diana — Levette collection — without definite locality. It is probably 

 of not more than varietal rank. 



Iitcolia lo)igipi)iiiis Casey, elongate, parallel, blackish, sides of 

 thorax and streak on elytra paler, length 3.8 mm., was described as 

 being doubtf iiUv from Indiana. 



III. PisE.vi;. Casey. 1900. 



To this geiULS Casey ascribes two .species, one being that usually 

 listed under the ^lycetophagicLv as Triplujllua hiiinnnlis Kirby. 

 The club of antenn* is loosely three- jointed ; thorax not flattened 

 at sides, the base broadly lobed at middle and as Avide as the base of 

 elytra, so that the sides of both form a continuous arc • eyes small, 

 very short and stronoly transverse. 



2.3.S3 (3402). Pisexus humeralis ICirby, Faun, F.or 



Elongate-ova), convex. Blackish-picei.us. shin- 

 ing, sparsely clothed with short, silken, yellowish 

 hairs; legs and antennae dark reddish-broA^ii ; hu- 

 meri of el.Atra obscure reddish. Thorax nearly 

 twice as wide as long, sides feebly rounded; sur- 

 face finely and rather densely punctate and with 

 a feeble impression each side at liase. Elytra thre^- 

 times as long as thorax, more c .ursely and sparse- 

 ly punctate. Length 3-3.5 mm. (Tig. -571.) 



Throughout the State ; common on leathery 

 fungi, especially those growing on beech and 

 maple stumps. Probably hibernates as imago. 



ber 9. 



Tribe 11. PEXTHIXI, 



.Vmer.. IV. 1837. If.; 



Fig. 571 (Original.) 



]March 10-Novem- 



This tribe is represented b}' the single genus : 



