186 



STANLEY HIRST. 



present on its surface, the pseudostigmata, which are the longest, being placed well 

 behind the middle. Ocular sliield normal in appearance ; both eyes are present 

 and circular in shape. A httle in advance of the middle of the body, there is a trans- 

 verse row of ten hairs, the outermost hair on each side being situated somewhat in 

 front of the others. Three transverse rows, each consisting of eight hairs, are also 

 present posteriorly on the dorsal surface and a few additional hairs at the extreme 

 hinder end of the body. All the hairs, both on the scutum and on the rest of the dorsal 

 surface are strongly plumose. Ventral surface. Coxae each provided with a single 

 hair. Most of the hairs on the lower surface of the body are considerably shorter 

 than the dorsal hairs ; but the two anterior pairs of hairs situated between the 

 coxae are long, especially the first pair, and there are some fairly long hairs at the 

 hinder end. Palp. Femur with a strongly plumose hair on its dorsal surface ; the 

 dorsal hairs on the other segments apparently being plain. Claw forked, the accessory 



Fig. 4. MicrotJirombidium gliricoUns, Hirst ; ventral aspect of palp and body. 



branch being short. Tarsus furnished with five feathered hairs, and a short rod-Uke 

 hair near the proximal end, also a Httle spine near the distal end (fig. 4). Legs rather 

 long and slender ; furnished with numerous hairs, which are more strongly plumose 

 than those on the body. Besides these feathered hairs, there are also a few rather 

 short hairs or spines on the legs, one being present on the upper surface of the patella 

 of the first and second, and two on the tibiae of these Umbs ; tarsus of first leg with 

 a rather strong rod-like process above, and a similar, but more slender one on the second 

 tarsus ; there is also a very short and minute hair on the tibia and tarsus of the first 

 leg and on the tarsus of the second. A plain subspiniform hair occurs on the patella 

 and tibia of the third leg ; tarsus of this Umb long, slender and gradually narrowed. 

 Length of body •24 mm. 



India : Calcutta, a single example from inner part of ear of Mus rattus, 20.iii. 15 

 (C. Paiva). 



