278 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 99 



IG. Kostrum with sharply angular protuberances or lateral teeth; palpal claw 

 with 2 or 3 weak teeth ; palpal claws broad and slightly curved. 



furibundus Rodendorf 



Rostrum with small, readily discernible lateral teeth; palpal claw with 2 



short thick teeth ; palpal claw thin and long praedabundis Kuzin 



CHEYLETUS ERUDITUS (Schrank) 



Plate 7, Figures 14-16 



Acarus eruditus Scheaxk, Enumeratio insectorum Austriae indigenorum, p. 513, 



1781. 

 Eutarsiis cancriformis Hessling, Illustr. Med. Zeit, vol. 1, p. 25S, 1852. — 



Ottdemans, Tijdschr. Ent., vol. 81, p. Ixxv, 1938. 

 Cheyletus ferox Banks, Proc. Ent. Soc. Washington, vol. 7, p. 134, 1906 (new 



synonymy ) . 

 Cheletes eruditus (Schrank) Oudemans, M^m. Soc. Zool. France, vol. 19, pp. 



84-88, fig. 18, 1906. 

 Cheyletus seminivorus (Packard) Ewing, Illinois Univ. Studies, vol. 3, No. 6, 



pp. 76, 77. 1909 ; Journ. Econ. Ent., vol. 5, No. 5, pp. 416-420, 1912. 

 Cheyletus churneus Hardy, i7i Andre, Ann. des Epiphyt. Annee 19, No. 6, pp. 336, 



344, 349, 350, 1933. 



Female. — Palpus slender; femur of palpus II/2 times as long as 

 wide, the dorsal seta about as long as the segment; genual seta on 

 posterior margin of segment; palpal claw relatively weak, with 2 

 basal teeth of equal size ; outer comb with 15 teeth, about II/2 times as 

 long as inner comb which has 16 teeth. Rostrum simple, narrow, 

 broadening slightly to rear; peritreme with 9 or 10 segments. 

 Propodosomatic shield rounded anteriorly, widening posteriorly, 

 covering most of the propodosoma, with four pairs of narrow 

 lanceolate pilose marginal setae. Hysterosomal shield small, rounded, 

 with three pairs of marginal setae. Tarsus I, 146/^ long; tibia I, 

 93/A long ; tarsal sensory setae about one-fourth as long as tarsus ; guard 

 seta simple, one-half as long as sensory seta; small rodlike sensory 

 seta on tibia I. Leg I, 428/i long ; leg IV, 400^ long. Length of body 

 514ju, including rostrum 714/li; width 371/a. 



Male (after Oudemans, 1906). — Similar to female but with two 

 pairs of dorsosubmedian propodosomatic setae and j&ve pairs of mar- 

 ginal setae on posterior shield. 



Type hah it at. — Unknown. 



Type locality. — Austria. 



This is a widespread, free-living species recorded from Australia, 

 Holland, India, Portugal, Mexico, Scotland, Jugoslavia, England, 

 Germany, Japan, Colombia, Chile, Madeira, and the United States. 

 In the United States it has been taken from house sparrow, Ithaca, 

 N. Y. ; on Sciurus cai'oUnensis at Thomasville, Ga. ; and from Cali- 

 fornia, Minnesota, and Oregon in warehouses, in grains. The descrip- 

 tion of the female is based on material from Voorhout, Holland, in- 

 tercepted at Philadelphia, Pa. 



