400 



Genus Haemaphysalis 



Female (F'ig. 338): Scutum nearly circular, about 1x1 ram.', 

 bright yellow, coarsely pitted ; cervical grooves shallow, concave 

 externally. Capitulum: base broader and shorter than in the (/, with 

 very slight cornua ; sides somewhat convex ; porose areas large, oval, 

 for apart, converging anteriorly ; palps longer and narrower than in 

 the (/ ; article 2 with sharper external angle, its inner dorsal contour 

 like that of the cT- Venter: spiracle ovoid, with blunt dorsal pro- 

 tuberance, yellowish. Legs : coxae as in the </ ; tarsus IV tapering 

 gradually, the distal pseudo-segment rather long. 



Nymph (Fig. 340) : Scutum deeply emarginate, oval, about as long 

 as broad, but appearing longer (0 45 x 045 mm.), of uneven surface 



Fig. 340. H. jmpuana. Nymph. Capitulnm in dorsal and ventral aspects, scutum, coxae 

 with trochanters, spiracle and tarsus IV. Specimen (N. 220) from Borneo. Original, 

 N. C. del. 



and more punctate than is usual with nymphs of this genus. Cervical 

 groove.s well-marked, nearly parallel for half the scutal length. Capitulum : 

 base rectangular with slight cornua ; palps slightly salient laterally, 

 fairly long ; article 2 about equal in length to article 3 ; no dorsal 

 spines, but the inner angle of article 3 slightly recurved ; a slight 

 retrograde spur under article 3 ; hypostome rather narrow, 2 j 2. 

 Venter : spiracle circular. Legs : coxae normal ; tarsus IV short and 

 tapering rapidly ; pad fairly long. 



1 The following measurements, in mm., relate to 8 ? from various places in Borneo : 





