A. C. OUDEMANS, NOTES OX AfA7<I. 49 



same configuration of the abdomen. The same ])lienfmi(Mion 

 we meet with males of other speci«='s and genera, when they 

 live on the same group of birds, e. g. on PsiUaddae, Passcrukie, 

 etc., save exceptions which probably prove that the species 

 have strayed. All these facts prove that we must pav more 

 attention to the characteristics of the females than to those 

 of the males. E. g. Pterolichus obtusm Rob., the type of the 

 genus Pferoliclms Rob., and Pseudalloptes hisiibulatm (Rob,), 

 type of the genus Pseudalloptes Trt., have females that are 

 equal in si/e, shape, dorsal shields, hairs, epimera, etc. etc., 

 but their males slightly dilier, I think we have erred, and 

 I propose to unite these two species in the same genus, viz. 

 Pterolichus Rob., which is older ; the genus Pseudalloptes 

 must be abandoned, at least provisorily. 



I will now discuss the subfamilies, tribes and even a few 

 genera, and for easiness sake I will follow ,,Das Tierreich." 



First then the Cytodytinae {Cytolichinae) are deprived of 

 vertical hairs. The two genera Cytodytes and Laminocoptes, 

 however, are so widely unrelated to each other, that they 

 must be separated. For Laminocoptes I propose the subfamily 

 of Laminocoptinae. . 



Then the Acarinae (Sarcocoptinae). To these 1 count only the 

 genera Acanis (Sarcocoptes), Cnemidocoptes, Prosopodectes and 

 N^otoedres, acari with sphaeroidal body, short legs and vertical 

 hairs ; ç without copulation-tube. Berlese already in 1897 

 separated the genera Psoroptes, Choriocoptes, Caparlnia and 

 (Hodectes and placed them in the subfamily of Psoroptmae ; 

 they really differ from the above mentioned four genera by 

 having a flat body, long legs, o with copulation-tube, no 

 vertical hairs, d" legs III longer and stronger than the other 

 legs. The name Psoroptinae is not new, being already used 

 by Cakestrini in 1892, in another sense though). They are 

 related evidenthy to the Epidermocoptlnae. — For the genus 

 Psoralyes of which the young states have all characteristics 

 T^dichr. V. Entom. LI. 4 



