38. Key to the species of Hypopus. 



!Legs 1 and 2 without strong spiues or 



thorns 2. 



Legs 1 and 2 with strong thorns. . 3. 



c On each side of the anus a very longhair H. minutus Oudms. 



(No long hair H. crassipes (Halier). 



IHeterom. <-f with 2 little spines on tarsi H. trouessarti (Berl.). 

 Heterom. g with strong spines on all 



the joints of the legs H. spinitarsus (Herra.). 



39. Tyroglyphus trifolium Oudms., nov. sp. 



(With Plate III, fig. 57—61) 



Nympha. Length about 430 p. Shape like that of Tyroglyphus 

 siro Latr. Colour white, opaque. Dorsal side (Fig. 57) polished, 

 with distinct but only superficial demarcation between cephalo- 

 thorax and abdomen. The species is specially characterized by 

 six robust hairs as long as the abdomen. Two are situated on 

 the cephalothorax, directed forward and outward ; two on the 

 shoulders, directed sideward, and two on the posterior margin of 

 the abdomen, directed backward and outward. Two thick vertical 

 bristles are directed forward. Ventral side (Fig. 58) polished; no 

 demarcation visible. The epimera 1 form an Y. Anus a longitu- 

 dinal split, flauked by two strong hairs, directed backward and 

 as long as the breadth of the abdomen. Legs 1, 2 and3endingin 

 a tibia with long tactile hair, and a tarsus with three hairs with 

 leaf-like distal end, resembling a clover-leaf (Fig. 59, 60). The 

 tarsus 4 has only one hair like this (Fig. 61). Every tarsus ends in 

 a strong claw and a minute sucker. 



Habitat: Heliocopris bucephalus. 



Patria: Java. 



40. Key to the species of Tyroglyphus Latr. 



i Femur 4 crooked T. diversipes Karp. 



(Femur 4 straight 2. 



