1897] ENTOMOLOGICAL NEWS. 115 



Mr. Johnson exhibited specimens of Midas tibialis captured 

 by Mr. Herman Hornig; also Midas audax, both of which speci- 

 mens were captured near Philadelphia, and Midas ftdvi/rons, 

 collected at Avalon, N. J., July 29, 1896. The speaker further 

 drew attention to a series of Midax pachygaster (?) and Midax 

 incisus ( S ) from Florida and Georgia, showing that the two 

 species are probably identical. 



Dr. Skinner remarked that recent literature on parasites af- 

 fecting domestic animals spoke of Demodex folliculorum hominis 

 as being the cause of the disease of the human face known as 

 comedones or black-heads, whereas medical men and works on 

 dermatology say that they have nothing to do with the disease, 

 but only abide there incidentally. One entomological work says 

 "The variety occurring on man {hominis) producing the little 

 specks or black-heads so frequent on the face," Another work 

 says "Face-mites: black-heads (Dermodecidae). Face- mites 

 live in the sweat-glands at the roots of hairs and in diseased fol- 

 licles in the skin of the human face, chiefly about the nose, eyes 

 and chin, where they cause the well-known comedones or black- ' 

 heads y Comedones are retained sebaceous material assuming 

 the form of the follicles and having a speck of accumulated black 

 dirt at the end. It is very doubtful whether the parasite has 

 anything to do with their causation in man, and they may be 

 beneficial in eating up the comedones, although they are not 

 numerous in the face and are not easily found. 



Further discussed by Drs. Smith and Skinner. 



Mr. Laurent exhibited a specimen of Catocala habilis, which 

 he said differed from the normal form (which was shown for com- 

 parison) in the markings, the difference noted being the absence 

 of the white bands and black lines on the wings, always seen in 

 the normal form. 



A motion being regularly made and seconded to appoint a 

 committee with power to act, to communicate with the Newark, 

 New York and Brooklyn Societies to arrange for a suitable place 

 of meeting for the annual fourth of July outing. The chairman 

 appointed Messrs. John B. Smith and H. W. Wenzel on said 

 committee, with the request to report at next meeting. 



No further business being presented the meeting adjourned at 

 10.45 P-^- The members were then pleasantly entertained by 

 mine host Haimbach with a number of well-chosen musical selec- 



