198 ENTOMOLOGICAI. NEWS [May, '17 



one between legs I and II, one over leg II, two over leg III, and 

 four on each posterior side, and three each side near tip, the latter 

 longer than the others, and a few on disc, mostly near the outer 

 margin. Dorsal shield about one and one-half times as long as 

 broad, broadest at lateral angle, much narrowed behind; legs not as 

 long as body, with short, simple bristles, mostly at base and tips of 

 joints, and arising from hyaline spots. Venter with a triangular 

 shield, broader than long, and with two hyaline spots each side, each 

 with a hair; hind margin of coxa I with a spur behind; stigmal plate 

 twice as long as broad. 

 Length, 1.6 mm. 



From Obispo, Canal Zone, on bat, January (Goldman). 



Differs from S. praccursor in that the body is broader be- 

 hind, in longer dorsal shield, in head less produced in the mid- 

 dle, in the longer stigmal plate, in shorter sternal shield, and 

 the less hairy body. I consider that this genus is fully as 

 closely related to the Parasitidae as to the Ixodidae, and would 

 place it in a family in the super family Parasitoidea. The head 

 isL very different from the capitulum of the ticks ; and the 

 sternal plate, posterior genital opening, and the retractile man- 

 dibles ally it more to the Parasitidae. 



Iphiopsis obesus n. sp. (PI. XV, fig. 12). 



Yellowish brown. Body pyriform, about one and one-half times 

 longer than broad ; the dorsum with a few scattered minute hairs aris- 

 ing from hyaline dots, venter with larger short, almost spinelike hairs; 

 legs with simple hairs, and four each side on the sternal plate, the mid- 

 dle ones close together. Sternal plate, concave behind, not reaching 

 behind coxae III ; genital plate U-shaped, and plate rather large, 

 broad in front, anus near its hind margin ; on the venter are two 

 transverse, corneous plates, the outer one the larger. Spiracles not 

 twice as long as broad, elliptical; legs very stout, hardly as long as 

 the width of body, each tipped by a very large caroncle, most of the 

 joints (except the last) broader than long; first pair of legs not as 

 stout and shorter than the others ; palpi very hairy near tip. 



Length, .75 mm. 



From Altamonte Springs, Florida (F. H. Lewton, coll.). 

 Tyroglyphidae. 

 Tyroglyphus sacchari n. sp. (PI. XIV, fig. 1; PI. XV, fig. 10). 



Body pyriform, about twice as long as broad, broadest behind the 

 middle; cephalothorax rather long, much narrowed in front, the man- 

 dibles prominent. Dorsum with long, simple bristles behind, but not 



