NO. 6 CHIGGER SUBGENUS GAHRLIEPIA — TRAUB AND MORROW 37 



Dorsal setae similar to scutal setae ; about 34 to 36 in number exclud- 

 ing those usurped by scutum. The great breadth of scutum resulting 

 in crowding of dorsal setae along sides of body; rows hence inap- 

 parent. With about 82 ventral setae, including 6 which are in line 

 with midpoint of coxa III and thus replace true sternals, and also 

 including about 24 to 26 postanals resembling caudalmost dorsals. 

 True ventral setae about 17 to 26 microns in length, thin, sparsely 

 plumed. With a typical pair of sternal setae inserted in line with 

 caudal angle of coxa I. Legs: Coxae particularly heavily punctate, 

 appearing shagreened or beaded. Coxae II and III exceptionally 

 broad (as in G. ornata Womersley, 1952, and allies). Thus, coxa III 

 actually broader than long (ratio 86 to 93 = 0.92); with seta sub- 

 median. Sensory setae as in G. exilis, new species. 



Type material. — Holotype (No. 8160-1) and three paratypes ex 

 Lariscus insignis (Cuvier), a ground-dwelling squirrel, Malaya, Se- 

 langor, Gombak Forest Reserve, 16 miles north of Kuala Lumpur, 

 near Pahang Road (R. Traub, for U. S. Army Medical Research 

 Unit), July 7, 1948. One paratype (drawn in figs. 100-107) ex 

 Hylomys suillus Muller, the lesser gymnuran, Malaya, Selangor, Ulu 

 Langat Forest Reserve (J. R. Audy, for Colonial Office Medical 

 Research Unit). Three ex Rattus howersi Anderson, Ulu Langat, 

 February 8, March 4, and October 14, 1952. Holotype (U.S.N.M. 

 No. 2166) and one paratype deposited in U. S. National Museum. 

 Paratypes deposited in collection of Colonial Office Medical Research 

 Unit and in that of senior author. 



Comment. — This species has been taken only in primary forest. 



GAHRLIEPIA (GAHRLIEPIA) LACINIATA, new species 

 Figures 108-115 



Diagnosis of larva. — Unique in possessing a prominent dorsal flap 

 extending from each cheliceral base (fig. iii, FL). Distinctive among 

 described scrobiculate Gahrlicpia in that the scutum bears 2 pairs of 

 usurped setae which are medial in position (thereby agreeing with 

 2 new ones described below). Resembling G. (G.) picta, new species, 

 in that the scrobiculi are fairly large and distributed over most of 

 scutum. Further separable from G. picta in that the pits are mainly 

 subcircular instead of elliptical or ameboid, and by virtue of the great 

 breadth of the scutum (ratio of scutal depth to width is 1,3, and 

 not 2). 



Description of larva. — Body: Ovate, about 408 x 304 microns in 

 fairly engorged holotype. Eyes double ; apparent as a raised, bead- 



