28 (de. a. c. oudemans). new list of dutch acari, II. 



truncated posteriorly , like in llie tritonympha. The epistoma lacks 

 the two small mucros of the tritonympha. 



On the ventral side (Fig. 42) the sternal and the genital shields 

 are coalesced. Especially the latter has a peculiar form and cir- 

 cumference. The genital aperture seems to me to be small, tiian- 

 gular, with rounded top turned forward. The demarcation between 

 the sternal shield and the lateral ones is visible between the im- 

 plantations of the iirst and second legs. The demarcation between 

 the genital and the ventral shield is very distinct. This latter seems 

 to have coalesced with the lateral ones. The anal shield is very 

 broad, formed like that of the tritonympha 



The protonympha measures 302 , the deutonympha 382 , the 

 tritonympha 643, the adult female, 1275 i«. 



27. Cyrtoiaelaps transisalae Oudms., nov. sp. 

 (With plate 3, Hg. 43—46). 



This species is intermediate to Cyrtoiaelaps cervus (Kram.) and 

 Cp't. nemorensis (G. L. Koch). 



I have found tritonyinpJiae feminimae. 



Length 644 ^f. 



The epistoma remembers us of that of Cyrt. nemorensis, but 

 instead of two spines at the base of the two corners of it , the 

 epistoma shows one strong spine, which is also distinctly visii)le 

 at a side-view. (Fig. 43 and 44). 



The dorsal sìàeld (Fig. 43) is not divided into two, remembers 

 us therefore of that of Cyrt. cervus (Kram.), but the incisions do not 

 bent so strong backward as in this species. The dorsal shield is 

 truncated posteriorly, as in both species. — The hairs on the 

 dorsal side are also intermediate between cervus and nemorensis. 

 In distribution they remember of nem.orensis , but in having some 

 pair of hairs longer than the others, of cervus. 



The ventral side (Fig. 45) more resembles that of nemorensis ; 

 the ventral shield extending far more backward. Berlese's drawing 

 of the ventral side of C. cervus is not quite correct : the ventral 



