280 Annals of the Carnegie Museum. 



PSELAPHID.^/ 



Raphanus tolulae'Z^r. — During the months of September, October, 

 and November this species has been more frequently found than has 

 been recorded in the Hamilton List. I have only taken it in this 

 neighborhood in the valley of the Loyalhanna, in heaps composed of 

 a mixture of pulverized and thoroughly decomposed wood, dead 

 leaves and weeds, held together by numerous tough roots of rank vege- 

 tation growing thereon. I have also a few specimens taken at Cov- 

 ington, Ky., by Rev. M. Rettger. 



Rexius insculptus Lee. — A widely distributed species, varying in 

 size and in the shape of the head and thorax. Not rare. 



R. schmitti Breiid. — This is, almost beyond a doubt, a synonym of 

 inseitlpttis. The specimen described by Dr. Brendel is a male, and he 

 himself in the course of time considered and ranked it as but a doubt- 

 ful variety of iiiseitlptiis. It is best suppressed. 



Rexidius canaliculatus Lee. — Found everywhere in sifting all kinds 

 of vegetable material. 



R. trogasteroides BrenL. — Very scarce under things in the valley of 

 the Loyalhanna. It has not been found elsewhere as yet. It is hardly 

 congeneric with eanalieulatiis, and it is a matter of surprise to me that 

 it has thus far been allowed to remain in the genus in which it was 

 originally'placed by Dr. Brendel. 



Ramecia crinita Bread. — Very scarce. Since the appearance of 

 Dr. Hamilton's List I have taken only one specimen, on June 8, 1898. 

 This was found under the bark of a fallen tree on the Chestnut Ridge, 

 and walking about, accidentally, I presume, among a colony of ants 

 (^Cremcistogaster lineolata Say). 



R. dentiventris Cos. — Three specimens found on the Chestnut 

 Ridge in moss under a stone. 



R. arcuata Lee. — One male was taken in the valley of the Loyal- 

 hanna, and another in Carrolltown, Cambria County, by Rev. M. 

 Rettger. The femora of the second pair of legs are very much swol- 

 len and arched. 



Pycnoplectus tenellus Cas. — Not very scarce in various localities 

 on the Chestnut Ridge and in Cambria County. 



P. interruptus Lee. — Single individuals are occasionally found in 

 woods in western Pennsylvania. 



' By P. Jerome Schmitt, St. Vincent's Al)l)ey, Pa. 



