(du. a. c. oudemansî. notes on acart. 113 



that we have before us a creature which is characteristic enough 

 to he placed in a new genus, closely related to Uroseius Beri. 

 For this new genus I chose the name of Neoseius. The differences 

 between these two genera are mentioned in the Tijdschrift, v. 45, 

 p. 48. The species therefore is named Neoseius novus Oudms. 



13. Uropoda ritzemai Oudms. 



(With Plate 11, fig. 16—19). 



Uropoda ritzemai Oudms., nov. sp., in Eni omologische Berichten, 

 p. 88; 17, Vili, 1903. 



Deutonympha. — Length: 376 ^. — Colour: light brown, — 

 Shape nearly that of Ur. wagneri Oudms. — Texture polished. 



Dorsal side. (Fig, 16), Body oval, with top forward; somewhat 

 hexagonal. Dorsal and marginal shields perfectly fused. Two median 

 rows of minute pores. To the sides of these two rows of pores 

 there are about 3 or 4 longitudinal rows of minute hairs, of which 

 one row is marginal, 



Ventral side. (Fig. 17). Sterni-genital shield long, provided with 

 4 pair of minute hairs and two rows of light spots beginning and 

 converging behind coxae 2, ending and diverging behind coxae 4. 

 Ventri-anal shield semicircular, with anterior edge convex; without 

 any hairs. Pits of legs 3 and 4 distinct. Mctapodial shields distinct, 

 posteriorly rounded. Stigma at a level just behind coxae 2. 

 Peritrema complicate: j)ehind the stigma a small part directed 

 backward; before it first directed outward and forward, then 

 two sinuations, then deeply inward and suddenly forward, nearly 

 straight, till it reaches the edge of the body to the sides of the 

 coxae 1 , far forward. 



Hi/postome (Fig. 18) narrow, with the usual 6 hairs, which are 

 small and smooth. Horns minute, sinuated outward ; inner malae 

 bifid; their lobes are minute, transparent, blunt, rounded anteriorly. 



Legs small, without striking characters. Femurs 1, 2, 3, 4 with 

 two blades (Fig. 19). Coxa I with a small outer blade. Trochanter! 

 with a distal blade too. 



