Sarcoptiform es 3 75 



swollen and painful. The mites did not remain upon the scalp, but on 

 irritation caused by chemicals applied for control moved down from 

 the head, invading the eyes, ears, and nostrils. The eyes became badly 

 swollen and movement of the eyeballs was impossible. Invasion of the 

 nostrils was accompanied by irritation of the throat, trachea, and 

 bronchi. The mites were apparently confined to the pina region of the 

 ears, forming itching papules. Small incrustations frequently covered 

 infested areas. Possible sources of the infestation were pet cats and 

 dogs suffering from "mange." Fisher et al. 1951 report on this same 

 mite infesting the foot of a patient in conjunction with a fungus and 

 causing a dermatitis. From the few case histories he suggests the pos- 

 sibility that a dermatitis must first be present before the mite can 

 establish itself. Sasa 1950 reviews the genus Dermatophagoides in 

 Japan and reports finding D. takeuchii Sasa in urine, and D. saitoi Sasa 

 in sputum from a patient with Loeffler's syndrome, and Dermatopha- 

 goides sp. from sputum of a patient with chronic bronchial asthma. 



References: 



Boyd, E. 1949. A new genus and species of mite from the nasal cavity 

 of the ring-billed gull (Acarina, Epidermoptidae). J. Parasitol. 35 

 (3): 295-300. 



Cooreman, J. 1950. Sur un acarien nouveau, prejudiciable aux matieres 

 alimentaires entreposees: Mealia maynei n. sp. Bull, et Ann. Soc. 

 Ent. Belg. 86:164-168. 



Fisher, A. A., A. G. Franks, M. Wolf, and M. Leider. 1951. Concurrent 

 infestation with a rare mite and infection with a common derma- 

 tophyte. Archiv. of Dermatology and Syphilology 63(3) : 336-342. 



Sasa, M. 1950. Mites of the genus Dermatophagoides Bogdanoff, 1864 

 found from three cases of human acariasis. Japanese J. Expt. Medi- 

 cine 20:519-525. 



Traver, J. R. 1951. Unusual scalp dermatitis in humans caused by the 

 mite Dermatophagoides. Proc. Ent. Soc. Wash. 53(1): 1-25. 



Psoralgidae Oudemans, 1908 



Diagnosis: These mites are rather flat and short bodied. The male 

 has a deep posterior-median abdominal incision (bilobate). The skin 

 is soft, wrinkled. A median dorsal shield is always present, but there 

 are no other shields (?) nor are there any vertical setae. The che- 

 licerae are chelate and the maxillae have two-segmented palpi. The 

 legs are almost equal in size except in the male where legs in and iv 



