CLASSIFICATION OF THE TYROGLYPHID^E. 



41 



SUB-FAMILY Lentungulina. 



Divided thus into two genera : 



Ambulacrum terminated only by a claw . . Lentungula. 



Ambulacrum terminated only by a membrane . Hemisar copies. 



SUB-FAMILY Glycyphagina, 



.Sexual dimorphism shown in the thick- 7 TT 

 ness of the legs j He 



'Furrow dividing cephalo-^ 

 thorax and abdomen very \Saproglyphus. 

 conspicuous. 

 No sexual ^Genital discs-\ 



dimor- J No furrow of the male I jvicfcoJarsws. 

 phism (in between inconspicu- j 

 the legs). cephalo- - ous. J 



thorax and Genital discs^ 

 abdomen. of the male \Carpoglyphus. 



^ conspicuous. / 



Ambulacra with very small, almost obsolete, claws ") 

 and small ampulliform membranes. ) 



Ambulacra 

 with large 

 claws. 



SUB-FAMILY Tyroglyphina. 



Abdomen of the male with a posterior triangular 

 appendage bearing four leaf-like processes. 



Heteromorphic males with the third 

 pair of legs thickened. 



Histiogaster. 



Bhyzoglyphus. 

 j 



the first pair^k 

 iker than the \Aleurobius. 

 spurred. 

 Abdomen of"\ 



the male pro- j 



tected pos- \-MoniezieUa. 



teriorly by a 



hard shield. J 

 Abdomen ot> 



the male en- \Tyroglyphus. 



tirely bare. J 



SUB-FAMILY Chortoglyphina. 



Vulva arcuate, transverse. Tarsus of the fourth leg ") cj lor toalwhus 



of the male bearing two copulatory tubercles ) 



Vulva angular, sublongitudinal. Tarsus of the ") j^ ea n a 



fourth leg of the male without copulatory tubercles ) 



The late Professor P. Kramer, of Magdeburg, in 

 April, 1899, published in the great German work e Das 



