1916] 



Ferris — Notes on Anoplura and Mallophaga 



109 



and sternites of the abdomen also relate it to that genus. The 

 characters in which it departs from the Enderleinellus type are the 

 absence of a pair of small chitinized areas on the third sternite of 

 the abdomen, the reduction in size if not total absence of pleural 

 plates and the hook-like projections on the ventral side of the an- 

 tennae by which its name was suggested. 



Description of female: Length, .375 mm.; length of head, .075 

 mm.; length of abdomen, .25 mm.; width of head, .075 mm.; width 

 of thorax, .11 mm.; width of abdomen, .17 mm. 



Head rather elongated and cylindrical, with the antennae set 

 close to the flatly 

 rounded anterior 

 margin. Temporal 

 angles lacking, the 

 hind head being 

 but little wider 

 than the fore 

 head and having 

 the temporal 

 ma'rgins nearly 

 straight and par- 

 allel. Occiput 

 slightly pointed. 

 A transverse su- 

 ture immediately 

 behind the anten- 

 nae, a very narrow 

 chitinized band a- 

 long the anterior 

 margin and a slight- 

 ly chitinized area 

 along each tempo- 

 ral margin. Chae- 

 totaxy of the dorsal 

 surface as follows: 

 Several fine hairs 

 along the anterior 



margin ; a pair of „. ^ „ , , . „ . , . , 



. rig. o. tinaerleineUvs iincuiaf us sp. now; aoTsul side 



small hairs on each of female. 



