38 TIIOS. L. CASEY. 



Willets Point, Long Island ; three specimens % . 



The female is unknown. The specimens were found in the lamellar 

 parasitic fungus, growing upon the bark of an old chestnut log in a 

 thick wood. The species is very distinct, and does not satisfy any 

 description which is accessible to me ; I therefore feel warranted in 

 describing it as new. The abdominal segments are almost exactly 

 equal in length. 



LACHXOSTERXA. 



Ij. sil1>pi'Uiiiosa 11. sp. — Form moderately elongated and depressed, 

 about twice as long as wide. Color fuscous, slightly paler beneath, elytra 

 slightly paler than the pronotum, and having a very feebly prninose appear- 

 ance. Head twice as wide as long, punctures rather evenly distributed, 

 separated by slightly more than their own diameters ; epistoma broadly and 

 feebly bilobed, episternal suture distinct and broadly bisinuate ; club of 

 antennae in its greatest dimension longer than the entire preceding portion. 

 Prothorax slightly more than three-fourths wider than long, glabrous, fully 

 one-half wider at base than at apex ; sides strongly divergent and nearly 

 straight to the middle, then parallel and feebly sinuate to the posterior 

 angles ; anterior and posterior angles acute ; apex transverse and feebly 

 undulated, base broadly and feebly arcuate; disk rather strongly convex; 

 narrowly margined along the sides and anterior edge, not margined poste- 

 riorly ; punctures very small, impressed, rather evenly distributed, generally 

 separated by more than twice their own widths. Scutellum wider tliau long, 

 parabolic. Elytra at base very slightly wider than the prothorax ; sides 

 very slightly divergent and very feebly arcuate for three-fourths the length 

 from the humeri ; disk two and one-half times as long as the head and pro- 

 thorax together, nearly one-half longer than wide, very abruptly and obtusely 

 rounded behind ; very narrowly margined at the sides, border becoming 

 extinct posteriorly ; surface finely and irregularly punctured, punctures 

 impressed, setigerous, and separated by from one to five times their own 

 widths ; longitudinally costate along the suture, more strongly so posteriorly ; 

 each elytron has in addition several very feeble, narrow, and indefinite sub- 

 oblique or longitudinal costae. Legs rather long ; posterior tarsi much longer 

 than the tibiae, first and fourth joints shortest, nearly equal in length. 

 Pygidinui nuuh broader than long, irregularly and finely punctate. Length 

 14..') mm. 



Atlantic States. 



Tlio male has a rather feeble impression on the last ventral seg- 

 ment, which extends to a part of the penultimate. The pubescence 

 of the mesosternum is long and dense. The species bears a remote 

 resemblance to mirans Lee, but is much less elongated, paler in 

 color, and much less pruinose. 



Li. fusca (FriJld) — CMvat and apparently unnecessary confusion 

 exists in regard to this and closely allied species, and I find at least 



