158 (db. a. c. oudemans). few list of dutch acari, I. 



Notaspis subglobulus Oudms. 



This new species is closely allied to Notaspis globulus (Nic.) 



It is very black, highly polished and nearly globular, measures 

 0,680 mm. in length and 0,558 mm. in breadth. 



Céphalothorax dark brown; rostrum blunt; no rostral hairs 

 (fig. 1.); lamellae on the edges of the céphalothorax, posteriorly 

 as broad as anteriorly, with distinct pointed cusps; lamellar hairs 

 as long as or longer than the céphalothorax , setiform , planted on 

 the base of the lamellar cusp; translamella a thick line, but very 

 distinct ; interlamellar hairs longer than céphalothorax , setiform , 

 directed forward and slightly upward. Pteromorpha truncated ante- 

 riorly, well developed. 



Abdomen black with a yellowish patch on its anterior margin , 

 destitute of any hairs. 



Tectopedia 1 (fig. 2) blade-like with sharp cusp and with a hair 

 on its base; this hair is directed forward, curved inward, and 

 distinctly pectinated on its distal half. Genital aperture a trapezium 

 with its base turned forward. Anal aperture ditto, but its base is 

 turned hindward; moreover the top of the trapezium springs with 

 a point inward, and the base is rounded. 



The pseudostigmatic-organ (fig. 3) is. of moderate length , with 

 thin and curved peduncle and a rod-like head , filled as it were 

 with fat-globules , and turned forward. The organ may be called 

 long-clavate. 



The «key» on page 10 of «Das Tierreich, Oribatidae » should 

 be changed as follows : 



(Rost, slender; G. lam. long; legs long; no 

 light patch on Dors, of Abd N. gracilis. 



I Rost, obtuse; G. lam. short; legs moderate; 

 light patch or patches on Dors of Abd. — \^a. 

 Psstg. org. very small, almost globular on 



short peduncle N. lapidarius. 



Psstg. org. moderately long, gradually thick- 

 ened toward distal end N. subglobulus. 



