128 (dr. a. C, OUDEMANSÌ. NOTES ON ACARI. 



Habitat: the acarid-chamber in the first abdominal segment of 

 Xjjlocopa [Koptorthosoma^ aesluans L. 

 Patria: Malakka, India. 



9. Key to the species of Greenia Oudms. 



^ Dorsal shield with lateral incision. 6. perkinsi Oudms. 



1 ) 



' Dorsal shield without incisions. . 6. alfkeni Oudms. 



10. Hypoaspis greeni Oudms. , nov. sp. 



(With Plate 10 fig. 6—8). 



Briefly desciibed in Entomologische Berichten, p. 37 ; 1, VII, 1902. 



Female. Length 525 — 560 ;«. — Colour: the usual Gamasid- 

 yellow. — Shape oval , typical that of Ili/poaspis. — Dorsal 

 side (Fig. 6) provided with one doi'sal shield, smooth, with some 

 symmetiically arranged hairs, which are long in front and near the 

 shoulders, minute on the remaining part. Two strong bristles on 

 the posterior margin. 



Ventral side (Fig. 7). The sternal shield is perfectly trapezoidal, 

 with straight anterior and posterior edges. The geniti-ventral shield 

 shows a marking like a network with large meshes, a rounded 

 posterior margin and an indistinct anterior one, which probably 

 lies over the sternal shield. There are two little oval metapodial 

 shields and a small triangular anal one. The per itrema runs to the 

 sides of legs 1. Its beginning is a cup, strongly remembering us 

 of that of Greenia. 



The epistonia (Fig. 6) is a long, triangular hyalin appendage. 



The hyposto7na (Fig. 8) is very abnormal , such as is unknown 

 to me in other Parasitidae. It is narrow , long , tapering to the 

 distal end Besides the common 6 hairs it shows us two beautiful 

 curved horns and two inner malae; further a long lingula. 



Habitat: the acarid-chamber in the first abdominal segment of 

 Xylocopa {Koptorthosoma) teuuiscapa Westw, 



Patria: India. 



