89 



Males. 



Distal half of fixed finger of mandible 



slender, without teeth H. hirsutus Berl. 



Distal half thick, with teeth .... 2 



Fixed finger prolonged in great hook . H. horridus Michael. 

 Fixed finger not prolonged . . . . H. nidi Michael. 



Females. 



Sternal shield haired H. hirsutus Berl. 



Sternal shield with 3 pair of hairs. . 2 

 Geniti-ventral shield sac-shaped, slightly 



wider posteriorly 3 



Geniti-ventral shield rnuch wider and 



rounded posteriorly H. nidi Michael. 



f Mandible with spool-shaped sense-organ. H. michaeli Oudnis. 



I Mandible without such H. horridus Michael. 



11. Hypoaspis talpae Oudnis. 



(With Plate VI, fig. 40—44). 



Nympha. Perfectly resembling the female (Fig. 40) (see below) 

 except the ventral side (Fig. 41) which shows us the nymphal 

 sterni-genital shield, the anal shield with cribrum, the minute 

 inguinal shields, and the 5 pair of hairs between the two shields. 

 Peritrema extending forward beyond coxa 1. 



Female. Length 640 pL. — Shape oval, without any shoul- 

 ders. — Dorsal side (Fig. 40) protected by one shield, provided 

 with 4 vertical hairs, 9 margin al bristles on each side, of which 

 the posterior pair is somewhat longer than the others, and with 

 6 longitudinal somewhat wavy rows of about 7 bristles each. — 

 Ventral side (Fig. 42). The anterior corners of the sternal shield 

 are rounded ; the shield itself bears the usual 3 pairs of bristles. 

 The genital portion of the geniti-ventral shield is thin, longitu- 

 dinally striated, rounded anteriorly, and lies with its anterior margin 



