24 



meHt to the laboratory by Dr. Koch, of Lyons Station, Penna., 

 with the statement that they had infested in great numbers 

 the clothing of one of his patients, a woman, and had caused 

 an irritation similar to that produced by body lice. The 

 same insects swarmed in a mill owned by the patient's hus- 

 band. This insect has been met a number of times as an 

 insect pest (cf. Railliet, Blanchard et al). It is very similar 

 to Clothilla pulsatoria (one of the "death-watch" insects), 

 which Professor J. B. Smith, of Rutgers College, mentions 

 in the New Jersey State Entomological Catalogue as closely 

 resembling lice and being occasionally mistaken for them, 

 and as sometimes taking practical possession of a whole house 

 and becoming intolerable nuisances to the inhabitants. It is 

 believed to be the same insect which Gay, in 1878, described 

 as a parasite of horses under the name Trichodectes quadri- 

 cornis. 



74. Boophilus bovis, Curtice (Path. Mus., 11), the com- 

 mon cattle tick, the carrier of Texas fever of cattle, collected 

 in Iowa by Dr. J. J. Repp. 



75. Penfasloma denticulahim (Path. Hist., 1640), the larval 

 stage of Linguatida rhinaria, (Pilger), from the lung of a 

 gazelle, Gazella dorcas, from the Zoological Gardens. 



76. Demodex follindorum, var. hominis, (Simon) (Path. 

 Hist., 210), was encountered in the ducts of the sebaceous 

 glands in a section of a chronic inflammatory lesion of the 

 eyebrow of a woman in St. Mary's Hospital, Philadelphia, 

 submitted for examination by Dr. J. M. Swan. The parasites 

 are probably only coincident with the inflammation, but 

 the inflammatory changes in the walls of the infested 

 ducts suggest that they may have had some part in 

 maintenance of the long-standing irritation producing the 

 lesion. 



