1916] 



Ferris — Notes on Anoplura and Mallophaga 



113 



Ariz, and Ft. Yuma, Calif.), in the Museum of Vertebrate Zo- 

 ology of the University of California. Type from 8. hispidus. 



Curiously enough the affinities of this species are not with the 

 species of Hoplopleura from other murids, but are with Hoplo- 

 pleura arboricola K. & 

 F., which occurs upon 

 several species of sciu- 

 rids. The females of 

 these two species are 

 in fact hardly dis- 

 tinguishable, but the 

 genitalia of the males 

 afford good charac- 

 ters for separating 

 them. The sternal 

 plate is much more 

 pointed in the new 

 species than in H. ar- 

 boricola and there are 

 slight but constant dif- 

 ferences in the pleural 

 plates. 



Description of female: 

 Length, 1.4 mm.; length 

 of head, .25 mm.; length 

 of abdomen, 1.05 mm.; 

 width of head, .16 mm.; 

 width of thorax, .27 

 mm.; width of abdomen, 

 .5 mm. 



(The measurements of 

 both sexes are from spec- 

 imens that had been 

 relaxed and cleared in 

 caustic potash and are, 

 therefore, probably 

 somewhat greater than 

 measurements from fresh 

 specimens would be.) Fig. 8. Hophpleura fursnta sp. nov.; female 



