282 Annals of the Carnegie Museum. 



Actium angustum Cas. — Apijarently a monticolous species occur- 

 ring not commonly on the Chestnut Ridge, and more abundantly in 

 Cambria County (Rettger). 



Actiastes foveicollis Lee. — 1 have specimens from Cambria County, 

 but as yet have taken none at St. Vincent's. 



Trimiomelba dubia. — Four specimens have been taken at St. Vin- 

 cent's by sifting ; found in company with the next two species. 



Melba thoracica Brend. — Found more frecpiently than formerly, 

 l)ut not as abundant as the following species. 



M. sulcatula Cas. — This name is applied to Trii/iiinii parvuIituL of 

 the former list. The shape of the middle tibiae of the male will easily 

 distinguish it from its near relatives. It has been found abundantly, 

 especially in dead hickory wood, in an advanced stage of decay ; I 

 have also taken a i^w specimens with the sweeping net, in a dense 

 grass plot, near sundown. 



Dalmosella tenuis Cas. — Of this minute species, three or four speci- 

 mens have been obtained in material similar to that which is frequented 

 by siilcaUila. 



Trimioplectus obsoletus Brend. — Not rarely found, especially in 

 very rotten portions of the trunks and larger limbs of trees. 



Batrisus temporalis Cas. — This is the insect named seahriccps in 

 the former list. 



B. fossicauda Cas. — This is bistriatus of the former list. 



B. harringtoni Cas. — Occasionally met with both here and in 

 Cambria County in rotten logs and stumps. 



B. globosus Lee. — Found in al)undance almost everywhere in Penn- 

 sylvania. 



B. cavicornis Cas. — This is B. fovcieornis of the previous list ; very 

 rare. 



B. striatus L^ee. — Rare in our region ; I have not taken another 

 specimen since the former list appeared. 



B. schmitti Cas. — This is B. viri:;iiii(C of Hamilton's Tist. Capt. 

 Casey's type, a male in my collection, and one male which was lost, 

 are the only specimens of this species which I have seen. These three 

 were taken at different times, but in nearly the same situation, at a 

 slight distance from the banks of the Loyalhanna River on the Chest- 

 nut Ridge. 



B. schaumi, riparius, frontalis, globosus, punctifrons and furcatus 

 have all been found repeatedly since the appearance of Dr. Hamilton's 

 List. 



