MITES OF FAMILY CHEYLETIDAE — BAKER 281 



Tyfe locality. — New Guinea (specimen in Museum d'Histoire 

 Naturelle, Paris. 



The description was made from two specimens on one slide with 

 the following data (translation, original in Japanese) : "Public Health 

 Department of Formosa, Eesearch Laboratory of Medical Zoology." 

 Two other specimens were collected on Gallosciurus sladeni midas 

 Thomas at Myitkyina, Burma, August 6, 1945, by members of the 

 United States of America Typhus Commission. 



This species is closely related to Gheyletus malaccensis Oudemans 

 and may prove to be only a variety. 



GHEYLETUS LINSDALEI, new species 



Plate 8, Figures 26-29 



Female. — Palpi of normal size; palpal femur perhaps slightly 

 longer than wide; femoral and genual setae serrate, the genual seta 

 short, on posterior margin of segment, reaching only to basal part of 

 palpal claw; palpal claw usually with 4 teeth but occasionally one 

 side with 3 teeth ; outer palpal comb with about 17 teeth, inner comb 

 with about 22 teeth. Rostrum short, broadening to rear; peritreme 

 with eight i:)airs of large segments. Propodosomal shield widening 

 to rear with four pairs of marginal setae which are clublike, serrate ; 

 on posterior portion of shield at least three pairs of setal bases which 

 probably bore staghornlike setae. Hysterosomal shield broad, nar- 

 rowing only slightly to rear, with three pairs of clublike, serrate 

 marginal setae and five pairs of dorsomedian setal bases as found on 

 the anterior shield ; a p)air of clublike setae laterad of anterior corners 

 of posterior shield ; body shoulder setae long, simple, serrate. Tarsus 

 I, 83/x long; tibia I, 50/x long; sensory seta on tarsus I short, not much 

 longer than width of base of tarsus ; guard seta simple, shorter than 

 sensory seta. Body about 353;u, long, including rostrum about 500/*; 

 width about 140/a. 



Type hahltat. — On Citellus heecheyi. 



Type locality. — Monterey, Calif. 



r2/;?e.— U.S.N.M. No. 1760. 



The type female was collected January 28, 1943, and four paratypes 

 were taken December 3 and 4, 1942, on Citellus teecheyi^ Monterey, 

 Calif., by J. M. Linsdale. 



This species differs from others in the arrangement of the teeth 

 on the palpal claw and especially in the type of dorsal body setae. 



CHEYLETUS SCHNEIDERI Oudemans 



Cheyletus schneideri Oxtdemans, Tijdschr. Nederland. Dierk. Ver., ser. 2, vol. 8, 



p. XV, 1903 ; Mem. Soc. Zool. France, vol. 16, p. 16, pi. 2, figs. 52-54, 1904. 

 Cheletes schneideri Oudemans, M6m. Soc. Zool. France, vol. 19, p. 84, 1906. 



