202 Acarology 



3. Sebaia Oudemans, 1903 (= Monalichus Berlese, 

 Type. Sebaia rosacea Oudemans, 1903 



1904) 



Discussion: These small mites are to be found in more or less dry 

 situations in vegetable debris. Terpnacariis and Sebaia are both jump- 

 ers but Alycosmesis is not. An apparently undescribed genus from 

 Guatemala shows the prostigmatic tracheal system. 



Rejerence: 



Grandjean, F. 1939. Quelques genres d'acariens appartenant au groupe 

 des Endeostigmata. Ann. des Sci. Nat., Zool., Ser. 11, 2:1-122. 



Alicorhagiidae Grandjean, 1939 



Figures 148-150 



Diagnosis: These mites are small (about 0.22 to 0.30 mm. long) 

 and whitish in color with a brownish posterior. The body is not very 

 elongated and a light suture is located between the propodosoma and 



Figure 148 Alicorhagia fragilis Berlese. Lateral view of chelicera (right) with 

 detail (left). (After Grandjean 1939) 



the hysterosoma. The skin is soft with tuberculate striae. One pair of 

 propodosomal sensory setae is present and the large frontal protuber- 

 ance of the propodosoma bears two setae. There are no eyes. The 



Figure 149 Alicorhagia fragilis Ber- 

 lese. Dorsum of female. (After Grand- 

 jean 1939) 



Figure 150 Alicorliagia fragilis Ber- 

 lese. Venter of female. (After Grand- 

 jean 1939) 



