I9I4.] 



KeIvLOGG & Paine : Mallophaga. 



239 



segments. This unusual condition of thorax and abdomen is found 

 only in the female. 



Description of female : Colour of body yellowish brown with 

 lighter legs and head ; thorax and abdomen with numerous short 

 marginal spines. Head much wider than long, pale, almost trans- 

 parent except for the curved ocular bands^ mandibles and marginal 

 occipital band. Front slightly angled on the meson and at the 

 sides, with apparently several short hairs which have been broken 

 off in our specimen, and longer ones before the ocular emargin- 

 ations ; ocular fringe prominent. Temples expanded, widest 

 in front, with three pustules from which the hairs have been 



Fig. 4, — Menopon iiisolititm, Kellogg and Paine; Female. 



broken, also two short hairs on each side ; occiput concave with 

 two short hairs. 



Thorax just as wide as the head and as long as the first 

 eight abdominal segments. Prothorax with median lateral angles 

 bearing a short spine ; posterior margin obscured, though prob- 

 ably convex. Metathorax, including mesothorax (which is indi- 

 cated by a slight lateral marginal emargination), large, with 

 posterior margin highly convex on the abdomen ; sides almost 

 straight, the posterior lateral angles armed with several short 

 spines and a long submarginal hair. Colour of thorax darker 

 than either head or abdomen, showing several internal bands. 



