258 



MR. B. P. CUMMINGS ON LICE 



down on the inner side, each paramere shows a very pronounced 

 thickening or nodule of chitin. At the extreme distal end the 

 small acute termination of the paramere bends in sharply to face 

 its fellow, 



Text-fio'ure 1. 



BP_ 



Par_ 



End 



Linognatlms cavice-caj^ensis. Male copulatory apparatus. X 378. 

 BP. Basal plate ; Mid. endomere ; P. penis ; Par. paramere. 



Endomeres : These are fused at the base into a single piece. 

 The two limbs support the " preputial sac," on the lower side of 

 which, in the retracted condition, may be observed six large 

 pustular alveoli, probably containing minute directive hairs or 

 other form of sense-organ. 



Penis : At the tip is an aperture, surrounded by a noose of 

 chitin. This is probably the opening for the seminal fluid. 



Telomeres : Not separately distinguishable. 



