78 



2d pair which are fornridable seizing organs (Fig. 14). The follo- 

 wing may me rnentioned of the legs. Coxae 1 shows proximally 

 and ventrally (Fig. 9) a hole, probally an opening of a coxal 

 gland, distally and dorsally (Fig. 8) a short thorn and a denti- 

 culate edge. Trochanter 1 has dorsally (Fig. 8) a little knob and 

 a short, thick, thorn-like hair. Femur 1 bears dorsally and proxi- 

 mally (Fig. 8) a similar hair. Femur 2, genu 2 and tibia 2 are 

 provided with strongly chitinized, more or less flat apophyses 

 (Fig. 14). Tarsus 2 is curved. Femur 4, genu 4 and tibia 4 have 

 a hooked, knobby outer margin. Tarsus 4 is very long and bears 

 2 long, probably tactile, stift bristles, planted almost perpendi- 

 cularly on the tarsus. 



5. Parasitus spinipes (C. L. Koch) (Poecilocliirus spinipes 

 (C. L. Kocli) -f- Oamasus rubescens G. et R. Caii). 



(With Plate V, fig. 15 — 17). 



In the Tijdschrift voor Entomologie, v. 43, p. 134 — 135, I gave 

 a description and figures of the nympha masculina, called Poecilo- 

 chirus spinipes (C. L. Koch) by Berlese, better and more exactly 

 than was hitherto done by Koch and Berlese. On the same pages 

 I described and delineated another creature which I considered 

 as the nympha feminina of the same species. I maintain this my 

 supposition. While having under my examination fresh material 

 of the nympha feminina, 1 was struck by its close resemblance 

 to a drawing of Berlese representing the nympha coleoptrata of 

 Gamasus rubescens (G. et R. Can.). Indeed I am now convinced 

 that Poecilocliirus spinipes (C. L. Koch) is the nympha masculina, 

 the animal called by me Poecilocliirus spinipes nympha feminina 

 is the nympha feminina, and Gamasus rubescens is the adult female 

 of oue and the same species, which, according to the Rules of 

 Nomenclature must be called Parasitus spinipes (C. L. Koch). 



I am now even in the opportunity to describe and to delineate 

 the adult male! The male was found by Mr. S. A. Poppe in a 

 mole's nest. 



