302 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 99 



Specimens examined were collected at Birnannvood, Wis., May 14 

 (?),byL G.Sanders. 



These mites check almost perfectly with the figures given by Oude- 

 mans (1897), whose interpretation is being followed. 



Genus CHELETOMORPHA Oudemans 



Cheletomorpha Oudemans, Ent. Ber. Nederl. Ver., vol. 1, fasc. 18, p. 162, 1904. 



Type, Acarus lepidopterorum Shaw, 1794 ( = Cheyletus venustissima 

 Koch, 1839) (synonymy of Oudemans, 1937) (monotypic). 



CHELETOMORPHA LEPmOPTERORUM (Shaw) 



Plate 13, Figures 106, 107; Plate 14, FiGxmEs 108-112 



Acarus lepidopterorum Shaw, Nat. Misc., vol. 6, pi. 187, 1794. 



Cheyletus vcnustissimus Koch, Deutschlands Crustaceen, Slyriapoden und 

 Arachniden, fasc. 23, fig. 22, 1839. 



Cheyletus seminivorus Packard, A guide to the study of insects, p. 665, 1860. 



Cheyletus longipes Megnin, Journ. Anat. and Physiol., 1878, p. 8. — Banks, Proc. 

 Ent. Soc. Washington, vol. 11, p. 133, fig. 9, 1909 (new synonymy). 



Cheleto'morpha venustissima (Koch) Oudemans, Ent. Ber. Nederl. Ver., vol. 1, 

 fasc. 18, p. 162, 1904 ; I\I^m. Soc. Zool. France, vol. 19, pp. 144-153, figs. 37-39, 

 1006. — Chebian, Journ. Asiatic Soc. Bengal, new ser., vol. 27, No. 1, p. 145, 

 1932 (1931).— RoDENDORF, Wiss. Ber. Moskauer Staats Univ. Zool., vol. 42, 

 p. 92, 1940.— WoMEBSLEY, Rec. South Austral. Mus., vol. 7, No. 1, p. 62, 1941. 



Cheyletus rufus Hardy, in Andre, Ann. des Epiphyt. Ann^e 19, No. 6, p. 352, 1933. 



Cheletomorpha lepidopterorum (Shaw), Oudemans, Kritisch Historisch Over- 

 zicht der Acarologie IIIc, pp. 1115-1117, 1937. 



Female. — Long-legged mite with long body and leg setae which 

 are serrate, rodlike, and slightly flattened on end. Palpal femur 

 strongly swollen externally and straight internally, with 3 long, rod- 

 like, serrate setae and 2 single ventral setae ; no dorsal seta on genu ; 

 other palpal setae simple; palpal claw long, slender, with a single 

 basal tooth ; outer comb about as long as claw, with approximately 24 

 teeth; inner comb shorter and with perhaps twice as many teeth. 

 Rostrum long, narrow, sides concave; covered with a simple shield. 

 Peritreme simple, of small segments. Propodosomatic shield slightly 

 wider than long, with broadly rounded corners, three pairs of long, 

 serrate rodlike marginal setae near eye and one pair on posterior 

 corner; two pairs of dorsal submedian short simple setae; a pair of 

 long serrate rodlike shoulder setae. Hysterosomal shield wider than 

 long, rounded posteriorly, with two pairs of lateral marginal anterior 

 setae and three pairs of posterior marginal setae, as well as two pairs 

 of short simple dorsal submedian setae; a pair of long setae on 

 posterior edge of abdomen. Leg I, 670/a long; IV, 4:57 ix long; legs 

 II and III shorter. Tarsus, 106/a long; tibia I, IQGfi long; tarsus I 

 sensory seta short, rodlike, with a serrate guard seta of about three 



