90 



ou the posterior margin of the sternal shiekl. The ventral part is 

 better chitinized, oval, rounded posteriorly. One bristle on each 

 side of the genital portion. One pair of bristles on the geniti- 

 ventral shield, on the level of coxa 4, there where you should 

 search for a deraarcation between a genital and a ventral shield. 

 Anal shield triangular, wide, rounded anteriorly. Two small inguinal 

 shields. — Epistoma (Fig. 40) very thin, wide, somewhat rounded 

 anteriorly with a rnedian minute mucro. — Mandibles (Fig. 43) 

 chelate, with teeth, and with flat, spool-shaped sense-organ. 

 Maxillae. (Fig. 44). Outer malae long, spur-like, tapering distally; 

 inner malae rapidly tapering to a point, slowly bent outward, 

 forming pincers with outer malae, and provided inward with a 

 longer transparent blade. Legs. Coxae 2 (Fig. 42) with a short spine 

 directed forward. — Peritrema long, extending before coxae 1. 



Habitat. Talpa europaea, and free in woods. 



Patria, Germany (Mr. S. A. Poppe, near Vegesack), Italy (Prof. 

 Dr. Oskar Schneider near San Remo). 



12. Key to the species of Hypoaspis Can. 



!2d leg in both sexes with spurs 



or spines H. hermaphrodita (Berl.) 



2d leg in both sexes uuarmed . 2 



IQ ventral and anal shields fused. 3 



9 ventral and anal shields separate. 5 



( Body elongate H. hoïaspoides (G. Can.). 



subcircular 4 



l Body with long hairs ou margin. H. placentula (Berl.). 



) Body without hairs H, tumidula (C. L. Koch). 



!9 ventral and anal shields touching 

 with almost parallel edges . . 6 

 9 ventral and au al shields remote. 8 

 !Body round-oval, scarcely should- 

 ered 7 

 Body elongate H. arcualis (C. L. Koch). 



