92 THE CANADIAN ENTOMOLOGIST. 



vertical above, but faintly retroarcuate below. Tegmina broad and rather 

 short, though surpassing considerably the abdomen, cinereous, thrice 

 rather narrowly banded with clustered fuscous maculations, the apical 

 third mostly obscurely hyaline, the intercalary vein straight, sub- 

 equidistant between the median and ulnar veins, the lower intercalary 

 area not very broad, similar in density of anastomosing veins to the area 

 beneath it, the axillary vein free. Wings citron at base, vitreous at apex, 

 with fuscous veins, crossed at and beyond the middle by a dark fusco- 

 fuliginous band, as broad as the tegmina, including the hind margin and 

 following it broadly to the anal angle; its outer margin on the spread wing 

 is straight and a broad taenia in the humeral lobe runs almost to the base 

 of the wing. Hind femora testaceous, thrice banded very obliquely and 

 not very broadly with fuscous, broad, the inferior carina rather high and 

 rather strongly arcuate, the inferior sulcus luteous ; hind tibia? luteous 

 throughout. 



Length of body, 25 mm.; antennae, 9 mm.; tegmina, 27 mm.; hind 

 femora, 14.5 mm. 



2 9 • Blaine Co., Idaho, July 23 ; Mus. Leland Stanford Univ. 



This species belongs near the preceding species from the same 

 district, and was collected on the same day. It differs in the sculpturing 

 of the metazona and in the markings of the tegmina and wings. In the 

 latter point it agrees fairly well with H. montanus (Thorn.). 



The Protective Coloration and Attitude of Libythea Celtis, 

 Esp., are described and figured in an article in a Russian magazine 

 ( Hora Societatis Entomological Rossicre, Vol. XXXV., Nov., 1900), of 

 which the writer gives the following English abstract : "The observations 

 were made on the Southern coast of the Crimea. The butterfly in repose 

 exactly resembles a dead leaf, just as many tropical Rhopalocera, with the 

 famous Killitna at their head. The circumstance that Libythea celtis 

 makes use of its palpi and antennae for the simulation of a stalk of a leaf 

 is very singular, as no tropical ' leaf-shaped ' butterfly does it. The 

 coloration also completely conforms to the habits of the insect. The 

 form of the folded wings, and the presence on the under side of the 

 hind wings of a dark median vein, makes the resemblance to a leaf 

 still more complete. We have thus in this species a unique example of 

 a European butterfly which mimics the dead leaf as perfectly as several 

 celebrated tropical species." — Nicholas Kusnezow, St. Petersburg. 



[The photogravure plate shows three specimens of the butterfly 

 in repose. The resemblance to a dead leaf is complete.] 



Erratum. — On page 79, third line from bottom, read 1850, instead 

 of 1 8—. 



Mailed March 5th, 1901. 



