282 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 99 



Type habitat. — Dead leaves. 

 Type locality. — Italy. 



CHEYLETUS TRUX Rodendorf 



Oheyletus trux Rodendoef, Wiss. Ber. Moskauer Staats Univ. Zool., vol. 42, pp. 87, 

 88, figs. 1, 2, 17, 19, 21, 1940. 



Type habitat. — Granaries and sheep fodder. 



Type locality. — Ivanovo ; Agriz, Union of Soviet Socialist Republics. 



CHEYLETUS CACAHUAMILPENSIS, new species 

 Plate S, Figures 30-34 



Female. — Palpi strong; no basal condyle; femur about as long as 

 wide, with a short pilose seta ; genual seta pilose, on posterior margin 

 of segment ; palpal claw with 2 basal teeth, the proximal tooth about 

 twice as long as the distal with a nearly flat surface ; outer palpal comb 

 with about 18 teeth ; inner comb two-thirds as long and with 20 teeth. 

 Rostrum of normal size ; peritreme composed of eight large segments. 

 Anterior shield covering most of propodosoma; four pairs of long, 

 lanceolate serrate marginal setae; one pair of posterior dorsosub- 

 median staghornlike setae. Hysterosomal shield with four pairs of 

 marginal setae and one pair of dorsosubmedian staghornlike setae on 

 anterior margin of shield. Genital-anal setae appear simple, although 

 the anal setae may be serrate. Tareus I, 80/x long ; tibia I, 34^ long, 

 tarsus I sensory seta short, rodlike; guard seta pilose, four times as 

 long as sensory seta ; tibia I with small clavate seta and short pilose 

 setae. Coxae III with a lanceolate serrate seta. Length of body 2G7/i, 

 including rostrum 380/a; width 200/;,. 



Type habitat. — In bat guano. 



Type locality. — Cave of Cacahuamilpa, Guerrero, Mexico. 



Type. — In the collection of F. Bonet, Mexico, D. F. 



The female type and a nymph were collected December 15, 1939, by 

 F. Bonet. 



The setal pattern of the dorsal shields and the tarsus I sensory and 

 guard setae are distinctive. 



CHEYLETUS BEAUCHAMPI, new species 



Plate 8, Figukes 35-38 



Female. — Palpi and rostrum of normal size. Palpal femur not 

 much longer than broad ; genual seta on posterior margin of segment ; 

 tarsal claw with 2 basal teeth, the lower tooth flat, not notched ; outer 

 comb with about 17 teeth ; inner comb with 29 teeth and almost as long 

 as outer comb. Rostrum gradually widening to rear ; peritreme sim- 

 ple, composed of medium-sized segments. Lateral margins of pro- 



