122 (DR. A, C. OUDHMANS). NOTES ON ACARI. 



Patria: Germany (Bremen). 

 Found by Mr. J. D. Alf ken. 

 Type. In my collection, 



7. Sebaia Oudms. 

 (With Plate 7, fig. 28—37.) 



4903, XI, 1. Hehaia Oudms, in Entom. Bericht, p. 101. 

 Named in honour of Seha^ naturalist, 1665 — 1736. 

 Belongs to the BdeUldae Pachygnathinae. 



It differs from Pachygnatlms Dug, and Bimichaelia Thor in 

 having no folds on the abdomen and no eyes. 



8. Pachygnathinae Kramer. 



Consequently the characters of the family »one or two eyes" 

 and «abdomen with segmental folds,» must fall. 



9. Sebaia rosacea Oudms. 

 (With Plate 7, fig. 28—37) 



1903., XI, 1. Sebaia rosacea Oudms. in Entom. Bericht, p. 102. 



Adult Length 320 ^. — Colour rose. — Shape short oval. — 

 Texture of dorsum of cephth. scaly; of dorsum of abd. granulate; 

 granules rather laige; the dorsal shields scaly; the remaining skin 

 smooth. — 



Dorsal side ( Fig. 28 ). Cephalolhorax well separated 

 from abdomen, trapezoidal, wider posteriorly, longer than wide, 

 protected by scaly shiehl; scales small, directed forward. On 

 this shield posteriorly near the median line a pair of hairs, 

 about one third of the length op the cephth.; then more outward 

 the pseudostigmata infundibuliform (see fig. 2!)) with their long, 

 extremely thin, thin-haired pseudostigmatic organ; then quite on 

 the edge (see also fig. 32) a pectinate hair. In the foremost half 

 of the céphalothorax again a pair of hairs near the edge, and two, 

 minute rostral hairs. Abdomen oval, truncate anteriorly, without 

 the characteristic folds of Vachyguaihus Dug. or Biwichaelia Thor, 



