THE MELANDRYID BARK BEETLES. 



1289 



2382 (7(547). ABSTIUUA TESSELLATA Melsh., Proe. Phil. Ac-ad. Nat. Sri., II, 

 1844, 114. 



Oblong-oval, convex. Piceous. feebly shining; antenna' and legs dull 

 yellow; elytra eaeh with alt. ml ten sinuous, more or less connected yellow- 

 ish spots, one of which is a reversed crescent or C close to suture on middle 

 third. Antenna> scarcely as long as head and thorax, the club distinctly 

 shorter than stem, the third joint as long as the next two combined. Th.i- 

 rax nearly twice as wide as long, sides broadly rounded, the base and apex 

 equal in width; surface deeply and rather coarsely and cloy el y punctate. 

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

 than thorax. Length 3.5 mm. 



Laporte and Lawrence counties; rare. June 10-June 14. Oc- 

 curs on decaying twigs. Casey's type of A. maculata was from In- 

 diana Levette collection without definite locality. It is probably 

 of not more than varietal rank. 



Incolia longipauiis Casey, elongate, parallel, blackish, sides of 

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

 being doubtfully from Indiana. 



III. PisExrs Casey. 1900. 



To this genus Casey ascribes two species, one being that usually 

 listed under the Mycetophagidse as Tripliyllus humeralis Kirby. 

 The club of antenna? is loosely three- jointed; thorax not flattened 

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

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

 very short and strongly transverse. 



2383 (3402). PISENUS HUMERALIS Kirby, Faun. P.or. Amer., IV, 1837, 112. 



Elongate-oval, convex. Klackish-piceons, shin- 

 ing, sparsely clothed with short, silken, yellowish 

 hairs ; legs and antemue dark reddish-brown ; bu- 

 rner! of elytra 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 base. Elytra three 

 times as long as thorax, more coarsely and sparse- 

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



Throughout the State ; common on leathery 

 fungi, especially those growing on beech and 

 maple stumps. Probably hibernates as imago, 

 her 9. 



Tribe II. PENTIIINI. 



Fig. 571. (Original.) 



March 10 Novem- 



This tribe is represented by the single genus : 



