280 



ME. B. F. OUMMINGS ON LICE 



qi the hair-canal ; postantennal area apparently bare. TJiorax: 

 Small scattered hairs on pronotum aiid a row along posterior 

 margin. A transverse row of short hairs on metanotum. Other- 

 hairs as in the figure. Abdomen : A transverse row of quite short, 

 closely-placed hairs along the posterior margin of each tergite ; in 

 those segments where two tergites are present, the row runs across 

 the front margin of the second. A small semicircle of short hairs. 



Text-figure 15. 



Pen 



Trichodectes harrisoni. Male copulatory apparatus. X 118"5. 

 JBF. Basal plate; JS. eiidomeve ; P. paramere; Pen. penis rod ; PS. preputial sac 



on anterior lip of genital opening. The whole of the doi'sal surface 

 of the apex of the abdomen studded with short hairs. Ventrally, 

 a row of hairs along posterior margin of each sternite. Fewer 

 hairs on ventral surface of the end of the abdomen than on the- 

 dorsal. Other hairs as in the figure. 



