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FIELD! ANA: ZOOLOGY, VOLUME 42 



metasternal setae long, subequal in length. Epigynial plate tongue-shaped, ex- 

 panded below setae, the posterior margin rounded; distance between epigjmial and 

 anal plates two times the length of the anal opening. Venter striate, with more 

 than 25 pairs of long, slender setae. Anal plate longer than wide, the anterior 

 margin rounded; adanal setae shorter than the anal opening, located on the mid- 



FiG. 40. Hirstionyssus palawanensis, female: A, dorsum; B, venter. 



line of the opening. Stigma on the posterior margin of coxa III, peritreme extend- 

 ing to the anterior margin of coxa I. Coxal spur pattern 0-4-2-1; dorsal anterior 

 spur on coxa II large, abruptly bent; inner posterior spur of coxa III larger than 

 the outer spur, subequal to the posterior spur on coxa IV. Tarsus II with a pair 

 of apical clawlike spines. 



MALE: Very similar to the female in most details except for the following 

 characteristics: Holo ventral plate not divided, broadest anteriorly with lateral 

 projections between coxae I and II, II and III, III and IV, slightly expanded 

 posterior to coxa IV, then narrowed before anal opening, 8 pairs of subequal, mod- 

 erately long, slender setae; postanal setae slightly longer than adanal setae. Coxal 

 spurs stronger than in the female, pattern as in the female. Dorsal plate 473 n 

 long, 256 fi wide. 



Holotype. Female, ex Hylopetes nigripes nigripes. Brooke's Point, 

 Palawan, May 8, 1947 (D. S. Rabor). In the Chicago Natural His- 

 tory Museum collection. 



Paratypes. Eleven females, 2 males, same data as holotype; 3 

 females, male, Puerto Princesa, Palawan, March 15, 1947. One in 

 the United States National Museum collection. 



