538 BRITISH ORIBATID^. 



conspicuously (almost their whole length) from the 

 dorsal aspect. Pseudo- stigmata dorsal. Pseudo- 

 stigmatic organs very long, almost filiform, but even- 

 tually coming to a point ; doubly curved, somewhat 

 recumbent ; pectinated along the greater part of the 

 upper anterior edge only ; the pectinations are long 

 and pointed, sparsely but regularly placed. I have 

 not been able to observe any lamellar or interlamellar 

 hairs. Apodemata not joined to the sternum. Sternum 

 imperfect. 



Legs short, not nearly reaching the hind apex of the 

 abdomen ; the joints of the first two pairs somewhat 

 rounded. The two hind pairs are set under the body 

 upon a central elevated portion of the ventral surface. 

 The tarsi, although longer than the tibiae, are not 

 nearly so long in proportion as in H. riifulus. Tactile 

 hairs on the first pair of legs very long. Tarsi clothed 

 with fine hairs. There is a whorl of short curved 

 hairs on most of the other joints, except the coxae. 

 Claws monodactyle. 



Abdomen almost diamond-shaped, the posterior half 

 of the diamond being the shorter, but it is truncated 

 anteriorly ; distinctly divided into three segments by two 

 curved transverse cuts. Of these segments the ante- 

 rior and posterior are large, but the central segment is 

 a mere band, convex anteriorly. There are four longi- 

 tudinal rows of short, thick, white hairs on the noto- 

 gaster ; a short spine on the antero-lateral angle point- 

 ing outward ; and about five curved hairs, also short, 

 along each side. The dorsal plate is very greatly 

 sufiiexed on to the ventral surface, the ventral plate 

 small and inversely conical. The genital and anal 

 plates are close together ; the former very large, appa- 

 rently to allow of the passage of the disproportionately 

 large egg of this species ; the anal plates are much 

 smaller and shorter, and reach the hind margin. 



