tl8 THE CANADIAN ENTOMOLOGIST. 



ANOTHER GEOMETRID TANGLE. 



BY RICHARD F. PEARSALL, BROOKLYN, N. Y. 

 (Continued from page 71.) 



Since tlie above investigation was begun, I liave received, imder date 

 of fan. 31, a letter from Mr. L. B. Prout, whose lively interest in solving 

 these vexed problems is as great as my own, and much more unselfish. I 

 can best show this by quoting it here, with apologies to him for so doing 

 without permission. 



'\Inequaliata, Pack. — The British Museum possesses the example 

 which purports (I suppose coirectly) to be Packard's 'type' specimen. 

 The labelling on it agrees with Packard's data, ' Long Island, N. Y. (H. 

 K. Morrison),' and the Museum acquired it with Zeller's collection. It 

 agrees with Packard's figure (PI. IX, Fig. 20). It is a female example of 

 the well-known European species, LobopJiora halter at a, Hufn., and as I 

 believe no other American examples of that species are known, I can only 

 conclude either : 



" (i) That it was accidentally introduced to America by shipping or 

 some unexplained agency, or 



" (2) That some confusion as to its real origin occurred {before it was 

 sent to Packard for figuring, for his figure confirms the specimen). 



" In either event the name iiicqualiata must sink to halter ata^ and 

 cannot stand for your pseudo ino?itanata (Eastern), which, though fairly 

 similar, is abundantly distinct. 



" Nivigerata, Walk. — You are quite right. This (according to the 

 two type specimens) is exactly the thing which you send me as niontanata, 



Auctt., non Pack. — Packard's Eastern, non-lypical ;;/^;//'^;/rt'/'c? 



I may add that Warren, in arranging the Brit. Mus. Geometrides thirteen 

 years ago, had discovered the identity of nivigerata with the so called 

 montanata, and had merged them together." 



It is fortunate that the type oi inequaliata, Pack., is in existence, for 

 it solves definitely this part of the difficulty, and the name must be 

 dropped from our lists. Our eastern Lobophora, as I have suspected, 

 becomes Lobophora nivigerata.. Walk., and it follows that the species now 

 known as Philopsia nivigerata, Walk., is not that species, and has never 

 been described. I herewith describe it under the name of 



Philopsia canavestita, n. sp.— Expanse, 19-22 mm. 



April, 1906. 



