Sarcoptiformes 



369 



Reference: 



Berlese, A. 1897. Acari Myriopoda et Scorpiones. Ordo Crytpostigmata 

 (Sarcoptidae). Fasc. LXXVIII, No. 4. 



Myialgesidae Trouessart, 1907 



Figures 299, 300 



Diagnosis: These mites arp par- 

 asitic on the Hippoboscidae, 

 Diptera, and occasionally on 

 Mallophaga. The body of the fe- 

 male is broadly oval (broadly 

 pear-shaped when pregnant). 

 Males are not known. No suture 

 separates the propodosoma from 

 the hysterosoma. There are no 

 vertical setae, but there is pro- 

 podosomal shield. The skin other- 



Figure 299 Myialges caulotoon Spie- 

 ser. Dorsum of female. (After Ferris 

 1928) 



Figure WO Left, Myialges anchora 

 Sergent and Trouessart. Tarsus i; 

 right, Myialges caulotoon Spieser. Tar- 

 sus I. (After Ferris 1928) 



wise is soft with fine striae. The median side of the palpi has groove- 

 excavations with the ends of the deformed chelicerae almost surrounded 

 by a tube. Tarsi ii, in, and iv lack claws but have a stalked caruncle; 

 tarsi I have no claw or lobe and are shaped like an anchor. The legs are 

 located on the anterior portion of the body. The genital opening of 

 the female lies between coxae iv. No genital suckers are present. 



Generu: 



1. Myialges Sergent and Trouessart, 1907 



Type. Myialges anchora Sergent and Trouessart, 1907 



2. Myialgopsis Cooreman, 1944 



Type. Myialgopsis trinotoni Cooreman, 1944 



Discussion: There are three species, Myialges anchora Sergent and 

 Trouessart, M. caulotoon Spieser, and Myialgopsis trinotoni Coore- 



