284 Mr. T. D. A. Cockercll — Descriptions and 



base, hind femora with mostly pale liair, the apical tuft 

 dusky leddisli ; tibiae and tarsi with fuscous hair, a con- 

 spicuous ochreous patch at apex of anterior ones in front, 

 hair on outer side of middle tibia shining mouse-colour in 

 certain lights, scopa of hind legs black. Wings strongly 

 brownish, first r. n, joining second s.m. more than a third 

 from its apex ; apical half of second abdominal segment with 

 distinct though fine punctures. 



Hab. Washington, D,C. (tvpe locality). May 15 (^Cockerell) ; 

 Garrison, N.Y. {Eleth CatteU). 



This is evidently Synhalonia atriventris fuscipes, Robertson, 

 but the name is not available because of Tetralonia fuscipes, 

 ]\Ioraw^itz. It is possible, but I now think not probable, 

 that T. iUinoensis (Rol).) is its male ; should this ])rove to 

 be the case, the name iUinoensis will have to be used. 



Tetralonia cordleyi orophila, subsp. n. 



? . — Like T. cordleyi, but with abdominal bands broader, 

 that on second segment about as broad at the sides as in the 

 mi(hlle; bands on second and third segments each with a 

 small median projection on upper (basad) side. 



Hab. lioulder, 'Colorado, June 29 (7\ D. A. Cockerell). 



Tetralonia clirysophila, S]). n. 



? . — LiVe T arayalli, but differing as follows : no distinct 

 smooth area on upper part of clypeus ; hair of thorax crcaui- 

 colour, not fulvous ; second s.m. larger ; apical plate of 

 abdomen less broadened basally, less triangular ; abdominal 

 bands much whiter; fifth segment dark reddish fuscous in 

 middle, white at sides. 



Hub. Las Vegas, New Mexico, at flowers of Ribes aurcum, 

 May 9 (7^. D. A. Cockerell). 



1 have had this for many years, labelled as a variety of 

 T.fruter (Cress.). 



The following key will serve for the separation of Teira- 

 lunia females related to T'. chrysophila and orophila : — 



Hind fljuu's hooked at end ; b<asiil lialf of 

 ftocoiid iil)di)iiiinal segment covered witli 

 greyish-wliite tomcntiini, but fiiscoii.s 

 tomentuni at extreme base, normally 



covered by first segment dllccta (Cross.). 



liiiid sjmi's not lioolced 1. 



]. loiirtii abddininal segment entirely covered 



with black hair //yV (Ckll.). 



i 



