Trombidiid/z : Harvest Mites. Acari of Quills. 149 



The Tlalsahuate of Mexico, the Bete Rouge, (red-beast) 

 of Guiana, Antilles and Honduras, the Colorado of Cuba, the 

 Niaibe of New Granada, the Mouqui of Para the Ciron Ruti- 

 lant of Savannah, etc., are indetermined species with similar 

 habits to those of the described varieties, and in some cases per- 

 haps identical. 



Treatment. In infested regions and seasons men passing 

 through green vegetation seek to protect themselves by wearing 

 tall leather boots, or by rubbing the skin with tobacco water, 

 sulphur or even solution of phenol. The safest course is to avoid 

 exposure in infested vegetation. The burrowing mites do not 

 survive over two or three days, so that staying indoors for that 

 length of time will effect a cure. Benzine, oil, glycerine, tobacco, 

 phenol, sulphur, etc., applied to the skin will, however, destroy 

 those remaining on the surface and do much to ward off a new 

 invasion. To animals the .same agents may be applied by way of 

 both prevention and cure. 



Cheyletus Parasitivorax. Cheyletus of the Rabbit. Is 

 a soft-skin species of the trombidiidse .30 to .45 mm. long, 

 hexagonal, yellow, with a rostrum one-fourth the size of the 

 body, and palpi one-third the size of the rostrum, in three seg- 

 ments the second furnished with a long hook extending as far as 

 the end of the last. It lives in the fur of rabbits and according to 

 Megnin is commensal, destroying the listrophorus and other soft 

 skinned parasites of its host. 



Cheyletus Heteropalpus. Cheyletus of Birds. Body 

 lozenge shaped, yellow, rostrum a narrow pointed cone, palpi 

 and hook on 2d segment smaller than in the parasitovorax, length 

 3 to 3.5 mm. They live in the feathers of pigeons and varibus 

 other birds and do no perceptible harm. 



Harpirynchus Nidulans. Nesting H. This species with 

 square or ovoid, flattened body, resembles a sarcoptes in form and 

 rostrum. It lives among the quills of pigeons, parrots and small 

 birds, collecting on the skin in wart like clusters, also in the 

 follicles of the feathers distending them abnormally. 



Syringophilus (Pecobia) Bipectinatus, Quill loving mite 

 and S. (P.) Uncinatus elongated mite, liVe in the interior of the 

 quills of hens, pigeons and other birds without appreciably im- 

 pairing health. 



