NO. 6 CHIGGER SUBGENUS GAHRLIEPIA — TRAUB AND MORROW 43 



ibid.; i, ibid., but August 17, 1953; 2, ibid., but ex Rattus sabanits, 

 September 21, 1953 (No. B-19476) ; i, ibid., but ex nest of Rattus sp., 

 August 20, 1953 ; 2, ibid., but ex Rattus rajah at Paring, elevation 

 1,600 feet, July 18, 1953 (No, B-19058) ; 34, ibid., but ex Rattus miil- 

 leri, 10 miles north of Jesselton at Menggatal Estate, August 4, 1951 

 (No. B-9108) ; I, ibid., but Ranau, elevation 1,500 feet, July 15, 1953 

 (No, 20523) ; 3, ibid., but Rattus sp., Ranau, elevation 1,500 feet, 

 July 28, 1953 (No. B-19151), Holotype (U,S.N.M. No. 2168) 

 deposited in U. S. National Museum. Paratypes distributed as for 

 G. exilis. 



GAHRLIEPIA (GAHRLIEPIA) AMPULLATA, new species 

 Figures 125-132 



Diagnosis of larva. — Unique among those scrobiculate Gahrliepia 

 which possess 4 usurped setae in that the scutum is shaped like a very 

 broad flask and bears deep marginal scallops (fig. 129). Also dis- 

 tinctive by virtue of the crenulate scrobiculi adorning the nonscal- 

 loped portion of the scutum. Separable from the other species known 

 for the subgenus (but agreeing with the new species next described) 

 by the following : With 2 setae on coxa III ; with an intersensillary 

 crater (i.e., a massive scrobiculus between sensillae bases and extend- 

 ing to near anterior margin) (fig. 129, I.C.) ; scutum at its maximum 

 nearly as broad as long ; with the eyes contiguous with scutum. 



Description of larva. — Body: Relatively broadly ovate, much 

 rounder than is typical for the genus ; 327 x 260 microns in rather 

 engorged holotype. Eyes bordering scutum at level of sensillae; ap- 

 pearing single, posterior eye almost vestigial. Gnathosoma: Chelic- 

 erae about four times as long as broad at base ; with apical tricuspid 

 cap distally acuminate. Palpal formula: B/h/NNN. Palpal claw 

 3-pronged ; lateralmost prong two-thirds length of mesal one. Scutum: 

 Long, but very broad at apical third ; 230 x 203 microns ; shaped like 

 a broad flask with subrounded base. Lateral and caudal margins 

 relatively well sclerotized ; with a flange of deep scallops set off by 

 transverse striations. The apical scallops about one-fifth or one-sixth 

 the breadth of the scutum. Remainder of scutum with irregular rows 

 of conspicuous crenulate scrobiculi which are four to five times the 

 diameter of the setal bases ; the pits distributed equally over entire 

 scutum between level of SB and caudal margin. Caudomarginal 

 scrobiculi crowded, smaller, contiguous and indistinct. With an enor- 

 mous scrobiculus, the intersensillary crater (fig. 129, I.C.) dominating 

 the scutal region between and in front of SB. Minutely punctate 



