124 (dr. a. c. oudemans). notes on acari. 



Berlese in one tabula of Fachygnathns (Ac. Myr. Scorp. Ital. 

 fase. 57 n°. 10) draws 3 claws and a pulvillum, and in the other 

 (]ibid.. fase. 45, n'^. 5) an ambulacrum like that of Sebaia (my 

 fig. 37). 



Habitat. I found it dead in glycerine in a map with unmounted 

 microscopical preparations. The map is made of straw-paste-board. 



Patria. Netherlands. 



Type in my collection. 



10. Erythraeus germanlcus Oudms. 

 (With Plate 7, fig. 38—45). 



1903, VII, 17. Erythraeus germanlcus Oudms., nov. sp., in 

 Entomologische Berichten, p. 88. 



Adult. Length. 2300 /t. — Colour most probably brown-red; in 

 spirits almost black, with reddish transparent rostrum, palps, coxae, 

 trochanteres, femurs, and dark brown remaining articles of legs. — 

 hhape Uke that of E. regalis' (G. L. Koch). 



Dorsal side (Fig. 38). Crista about one fourth of the creature's 

 length. Anterior areola (Fig. 39) with 8 spinous hairs (one is 

 delineated in fig 40) and two pseudostiginata. These are oval shal- 

 low cups; each with a long, smooth, hair-shaped pseudostigmatic 

 organ. Posterior areola only with 2 pseudosligmata, each with their 

 pseudostigmatic organ. Dorsum density covered with hairs of the 

 same shape as those in the ant. areola (Fig. 40). 



Ventral side (Fig. 43). Less hairs than in the dorsal side, but 

 of the same shape. The animal being quite opaque, the genital and 

 anal openings and covers were not observable. 



Rostrum of the usual shape; mandibles styliform. Maxillae of the 

 usual type, surrounding the mandibles in forming the rostrum. 

 Their coxae fused together to form the underside of the head 

 (Fig. 43), Palps with club-.shaped so-called appendiculum (Fig. 

 44 and 45). 



Legs comparatively slender, with cylindrical articles, except the 

 tarsi which are of the usual shape, somewhat swollen. The hairs 



