(db. a. C. OUDBMANS). NEW LIST OV DUTCH ACARI , II. 27 



Fig. 34 represents a ni/mp/ia, i^rohahìy di trltonpfijj/ia. The adult 

 is hitherto unknown. Males aie unknown. 



The epistoma differs from Berlese's drawing too, As will be 

 seen, the epistome of the larva and of both the nymphae is of the 

 same configuration. 



The chelae are perfectly like those deUneated by Berlese ; those 

 of the larva have only smaller teeth. 



The larva measuies '•Ih'-l , the deutonympha 562, the tritonympha 

 864 l^. 



26. Cyrtolaelaps nemorensis (C. L. Koch). 

 (With Plate 3, fig. 37—42). 



Protonpnpha (Fig. 37). The tico dorsal shields and the epistoma 

 are perfectly of the same form as those of the tritonympha, figured 

 by Berlese (Ac. Myr. Scorp. Ital. fase. 63, n°. 5). The hairs, 

 however; are otherwise and placed perfectly in the same way as in 

 the adult. The postei'ior dorsal shield is not truncated posteriorly. 



DeutoiiympJia (Fig. 38). No difference between the form of the 

 dorsal shields , of the epistoma and the distribution of the hairs of 

 this nympha and those of the protonympha. 



Tritoiii/mpha. Satisfactorily delineated by Berlese. All my spec- 

 imens have two small chitinous teeth or prominences in the middle 

 of the epistoma (Fig. 39), which are also distinctly visible on a 

 side-view (Fig. 40), and a posteriorly truncated posterior dorsal 

 shield , like C. cervus. 



That Cyrtolaelajis nemorensis (G. L. Koch) is not the adult of 

 Cyrt. cervus (Kram.) , as is suggested by Berlese (Ac. Myr. Scorp. 

 Ital. p. 58} is sufficiently proved by my drawing 37, 38, 39, 40, 

 but still more by my having found the 



Adult form. (Fig. 41 and 42). It is orange-yellow or orange- 

 brown. I beUeve this is the animal, figured by Koch. The animal 

 is much larger than the tritonympha, but moreover it has the two 

 dorsal shields, the epistoma and the number and distribution of the 

 hairs perfectly like in the nymphae. The posterior dorsal shield is 



