COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA. OOO 



Batrisns furcatus Brend. — Found in logs or among the leaves alongside of 

 them ; April, May. Scarce, hut ten specimens collected in four years. 



Batrisus denticoUis Casey. — This is abundant during Spring and Autumn 

 under leaves and stones in some woods, apparently prefei-ring some localities 

 to others. Numerous specimens. 



Batrisus virg-inise Casey. — This ought, perhaps, not to be included in this list ; 

 a single specimen, now destroyed, has so been named for me. 



Batrisus foveicornis Casey. — Of rare occurrence in rotten wood in Spring. 



Batrisus striatus Lee. {cephalotes Casey) — Very rarely found here in stumps or 

 under old leaves. 



Bryaxis. — The species of this genus ai'e not often met with here, only from 

 thirty to forty individuals have been obtained in four years, the great ma- 

 jority of which have been sifted from layers of dead leaves in grassy woods, 

 and the othere were found under stones. All were taken during Spring, and 

 mounted, but no record was made of them. B. perforata was taken with the 

 sweeping net (two specimeus) in a meadow on the Chestnut Eidge in May, 

 1894. 



Bryaxis semirugosa Brend. — But two specimens have occurred to me ; it is 

 very coarsely punctured. [Described by Dr. Brendel in "' Entomological 

 News," vol. vi, 183. The locality given by Dr. Brendel is erroneous, and 

 should have been western Alleghanies.] 



Rybaxis conjuncta Lee. — Single specimens and paii-s of this are not seldom 

 obtained with the sieve, or found under stones during Spring, it cannot, 

 however, be said to be abundant. 



Decarthron abnorme Lee. — A dozen specimens have been collected at difierent 

 times with tlie sieve, or found attached to the lower side of stones, Spring. 



Decarthron n. sp. (teste Dr. Brendel) — One pair found under a stone on the 

 Chestnut Eidge in October, and another pair sifted from among old leaves iu 

 Cambria County, in Spring. 



Bythinus carinatus Brend.— Abundant on the Chestnut Eidge and in Cambria 

 County under leaves ; Autumn, Winter and Spring. Have not met it except 

 on the mountains ; two hundred and fifty specimens. 



Bythinus (subgenus Machxrites) tychoides Brend. — One specimen sifted from 

 leaves on the Chestnut Eidge, in May. 



Tychus minor Lee. — Var. ? three 9 and nine % specimens of this have been 

 collected in Spring and in Autumn from under leaves or under stones. It is 

 hardly LeConte's minor. All the males have a conspicuous T-shaped tubercle 

 at the middle of the mesosternum. 



Tychus testaceus Casey. — Two males and ten females. Found with the last, 

 mesosternum of male simple. 



Ctenistes piceus and consobrinus Lee— Abundantly taken under stones 

 with Batrisus denticoUis. but especially so with the sweeping net in grassy 

 woods ; twenty-six males and thii-ty-six females, and forty other specimens 

 not yet separated with regard to sex. The larger individuals I mark piceus, 

 the smaller ones consobrinus — there does not seem to exist a sti'uctural char- 

 acter by which they can be separated as two recognizable valid species. Ct. 

 zimmermanui. from North Carolina, has the palpal appendages distinctly sepa- 

 rated from, and articulating with, the globose portion of the palpal joints. 



Ceophyllus monilis Lee. — Found, not rarely, with colonies of Ln.-tius aphidicola 

 Walsh, in Spring, and sometimes in Autumn from August 10th onward. 



TKANS. AM. ENT. SOC. XXII. OCTOBER, 1895. 



