426 



A carology 



3. Joelia Oudemans, 1906 (= Coggiella Berlese, 1916) 

 Type. Oribates fiorii Coggi, 1898 



4. Tectoribates Berlese, 1910 



a. Tectoribates s. str. 



Type. Oribata tecta Michael, 1883 



b. U nduloribates Balogh, 1943 



Type. Tectoribates undulatiis Berlese, 1915 



Microzetidae Grandjean, 1936 



Figures 361 , 362 



Diagnosis: These mites are in- 

 cluded in the Pterogasterina. Their 

 chelicerae have a forward-directed 

 horn dorsally on the fixed chela. 

 Tectopedium i has a large leaf or 

 plate which is a continuation of 

 the side wall of the propodosoma. 



Figure 361 Phylacozetes membranu- 

 lifer Grandjean. Cheliceral tip show- 

 ing horn. (After Grandjean 1936) 



Figure 362 Microzetes appalachicola 

 Jacot. Dorsum of female. 



The free margin of the tectopedium is of a complicated form with 

 large flaps separated from one another by deep incisions; these flaps 

 are so rolled that the tectopedium is convexly arched on the line of 

 the body axis. The lamellae are always very large, hinged, or joined 

 at the base and are not connected with one another; they can be of 

 various shapes and can be folded lengthwise. The legs can be with- 

 drawn under the lamellae and into these folds if the mite takes a posi- 

 tion of protection. From the paraxial side of the lamellae arises a 

 membranous flap which may be simple, harpoon-like, or have strong 

 teeth. The podosoma and opisthosoma are separated ventrally by a 

 broad, dark-colored band, a thickening of apodeme iv; above this can 

 be seen a fine transverse suture which joins the anterior lateral corner 

 of the genital opening with the sclerotized area surrounding the leg. 

 The podosoma is larger than the opisthosoma. 



