DELFINADO: LAELAPTOID MITES OF THE PHILIPPINES 107 



gin strongly sclerotized, concave; three pairs of sternal setae subequal in length 

 to metasternals. Epigynial plate narrowed posteriorly to a blunt point, the ante- 

 rior margin with a strong median projection and a pair of moderately long setae. 

 Anal plate elongate pyriform; anal opening near anterior margin of plate; adanal 

 setae laterad to the posterior margin of the anal opening, subequal to the postanal 

 seta. Setae on venter fairly numerous, moderately long and slender. Peritreme 

 short, extending to the middle of coxa II. Coxa II with strong, marginal spur; 

 coxae I, III and IV with long, slender setae. 



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

 Holoventral plate divided by a transverse line at the posterior level of coxa IV 

 lateral margins with projections between coxae I and II, II and III, III and IV 

 coxa II with a strong marginal anterior spur as in the female. Dorsal plate entire, 

 almost covering the whole body, with a shallow indentation at the middle of the 

 lateral margin. Ventral and dorsal setae stronger than those of the female. 



Holotype. Female, ex Scotophilus temminckii. Palawan: Cuyo 

 Island, May 28, 1947 (D. Castro). In the Chicago Natural History 

 Museum collection. 



Paratypes. Two females, one male, same data as holotype. One 

 in the United States National Museum collection. 



Remarks. This species is named in honor of Dr. Alex Fain, 

 Prince Leopold Institute of Tropical Medicine, Anvers, Belgium. 



Steatonyssus evansi, new species. Figure 38, A, B. 



This species is distinct in having long body setae; there are 10 

 pairs of long slender setae on the anterior dorsal plate, 3 pairs of long 

 medial setae, and 3 pairs of minute setae on the posterior margin of 

 the posterior plate. The anterior margin of the epigynial plate has a 

 strong, pointed median projection. 



FEMALE: Chelae slender, tapering toward tip, toothed; first palpal segment 

 with a ventral spinelike process. Dorsal plate divided; anterior plate 319 m long, 

 300 M wide, with 10 pairs of long, slender setae; posterior plate narrowed poste- 

 riorly, 364 fi long, 268 ix wide, with 3 pairs of long and 3 pairs of minute setae on 

 the posterior margin. Setae on the uncovered area fairly numerous, long and slen- 

 der, those on the posterior margin stronger. Sternal plate about twice as broad as 

 long, the posterior margin thickened, strongly concave, reticulate, the anterior 

 margin indistinct; 3 pairs of sternal setae subequal in length to metasternals. 

 Epigynial plate narrowed posteriorly to a blunt point, the anterior margin with a 

 strong median projection; a pair of long, slender setae on plate. Posterior setae 

 of venter stronger and longer than other setae. Anal plate elongate pyriform; anal 

 opening near anterior margin of plate; adanal setae laterad to the posterior margin 

 of the anal opening, shorter than the postanal seta. Peritreme reaching the mar- 

 gin of coxa I; coxa II with anterior, marginal spur. 



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

 Holoventral plate divided, expanded posteriorly behind coxa IV; anal plate large, 

 elongate pyriform; adanal setae posterior to anal opening. Tibia and tarsus of 



