i6 Psyche [February 



area of the protergum (Plate III, Fig. 5). The mouthparts are all 

 lar\4form. The basal joint of the antennae is larviform and chitin- 

 ized; the remainder of the antennae is membranous and typically 

 pupiforra. The eyes are typically pupiform with a membranous 

 area surrounding them, which connects the eye with the larviform 

 cheeks. The wing pads are well developed, but the elytral pads 

 do not bear the normal striation found in typical pupa. The base 

 of the wing pads is surrounded by a membranous area and the 

 pads seem to arise in the spiracular area. The specimen measures 

 23 mm. in length, the dorsum of the ninth abdominal segment 

 measures 2.996 mm. in length, and 2.14 mm. in width. The first 

 thoracic tergite is 1.498 mm. long. 



This particular case of prothetely seems to be a carrying forward 

 of larval characters into the pupal stage rather than a carrying 

 back of pupal characters into the larval stages. Such being the 

 case, it is possible and even probable that by the successful emer- 

 gence of such a pupa some larval characters would be carried into 

 the adult stage, and if such characters were of some material ad- 

 vantage to their possessors natural selection might here find varia- 

 tions which could lead to the production of such species with 

 larviform adults as do exist in certain other Coleopterous genera. 



TWO NEW THYSANOPTERA FROM WEST AFRICA, 



WITH A NOTE ON THE SYNONYMY OF THE 



PHLCEOTHRIPIDM. 



By J. Douglas Hood, 

 United States Biological Survey, Washington, D. C. 



The new species described below were sent to me in October, 

 1915, from Ossidinge, Kamerun, by Lieut. A. W. Jobbins-Pomeroy, 

 of the Nigeria Regiment, West African Frontier Force. Partly in 

 recognition of his devotion to entomology under such adverse cir- 

 cumstances, and partly as a mark of personal regard, I have taken 

 great pleasure in naming one of the species in his honor. 



