Trom b idiform es 



197 



tectum or anterior protuberance with an unpigmented ventral eye. 

 There are also two pairs of lateral eyes. Two pairs of sensory setae 

 are situated on the propodosoma. 

 The body lacks a suture between 

 the propodosoma and the hyste- 

 rosoma. The legs are located an- 

 teriorly in two closely approx- 

 imated groups: femur i is divided 

 into three sections; femora ii, in, 

 and IV are divided into two sec- 

 tions; tarsus I is bidactyle; tarsi ii, 

 III, and IV are tridactyle (the 

 claws and empodium are claw- 

 like with short rays). The legs 

 are adapted for jumping. The 

 chelicerae have opposed chelae. 

 The palpus has five segments and 



no claw-thumb complex. Two ^*g"»*^ ^^^ 

 r •* 1 1 Grandjean. 



pairs of genital suckers are pres- Grandjean 

 ent. 



Sphaerolichiis barbarus 

 Venter of female. (After 

 1939) 



Genus: 



Sphaerolichus Berlese, 1904 



Type. Sphaerolichus armipes Berlese, 1904 



Discussion: The sphaerolichids are little-known mites that live in a 

 dry habitat in vegetable debris. A tracheal system opening at the base 

 of the chelicerae was found in the only available species, an unde- 

 scribed genus from California. Grandjean 1939 has also found tra- 

 cheae in Sphaerolichus. 



Reference: 



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

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



Nanorchestidae Grandjean, 1937 



Figures 140-141 



These colorless or reddish, with a brownish posterior, 



long). Their shape 



Diagnosis: 



mites are small in size (from 0.165 to 0.350 mm 



