1917] New Species of Mallophaga 175 



ments one to seven, inclusive, each with a transverse series of short 

 spines as follows: Segment one, seventeen spines; segment two, 

 twenty-one spines; segment three, seventeen spines; segment four, 

 sixteen spines; segment five, sixteen spines; segment six, eighteen 

 spines (two at each side longer) ; segment seven, ten spines (one at each 

 side longer). The eighth segment with a transverse series of six spines, 

 the outer two of which are long, and with four arising at the tip which is 

 sharply notched. All of the abdominal spines arising from clear 

 pustulations. 



EXPLANATION OF PLATES. 



Plate XVL 



Female of Trichodectes monticolus n. sp. 



Head of male of Trichodectes monticolus n. sp. 



Left leg III of female of Trichodectes floridanus n. sp. (viewed ventrally). 



Left leg III of female of Trichodectes monticolus n. sp. (viewed ventrally). 



Female of Trichodectes floridattus n. sp. 



Antenna of male of Trichodectes monticolus n. sp. 



Plate XVII. 



Female of Trichodectes kingi n. sp. 



Antenna of female of Trichodectes kingi n. sp. 



Female of Trichodectes thomomyus n. sp. 



Head of male of Trichodectes thomomyus n. sp. 



Right leg III of female of Trichodectes thomomyus n. sp. (viewed ventrally) . 



Female of Trichodectes scleritus n. sp. 



Right leg II of female of Trichodectes kingi n. sp. 



Female of Trichodectes odocoileis n. sp. 



The drawings have been made through the employment of the camera lucida 

 with little attempt to restore symmetry. 



