184 THE CANADIAN ENTOMOLOGIST. 



forms should be looked for in America, especially in the West. To the 

 beginner it should be added that by no means all apterous or subapterous 

 Locustarians are Decticid?e, as witness the ubiquitous Centhophili ; but 

 Decticidse may be distinguished from other Locustarians (to follow Brun- 

 ner's latest table for their separation) by having the tarsi more or less 

 depressed (the Stenopelmatidje have them distinctly compressed) ; by the 

 presence of foramina near the base of the anterior tibite (wanting in 

 Gryllacrididse) ; by having the antennae inserted between the eyes, nearer 

 the summit of the occiput than the upper margin of the labrum (instead 

 of the opposite) ; by having tlie first two tarsal joints longitudinally 

 sulcate on the sides ; by having the fore-tibial foramina slit-like rather 

 than elliptical ; by the presence of an apical spine on the outer side of 

 the fore-tibiae above (wanting, however, in a single African genus of 

 Decticidse) ; and by the presence of a free plantula at the base of the first 

 hind tarsal joint beneath, this last character separating them from the 

 Locustid?e proper, where the plantula is not free. 



BOTYS URTICALOIDES, N. S. 



BY THE REV. THOMAS W. FYLES, SOUTH QUEBEC. 



Expanse of wings one and one-fourth inches. Length of body six- 

 tenths of an inch. Head and antennae black. Thorax, above black 

 bordered with white, beneath white. Legs white. Wings white, satiny, 

 translucent. Primaries have a slight tinge of yellow. On the costa, near 

 the middle, are two black or dark brown blotches ; below these, towards 

 the inner margin, are two other blotches, sometimes united — the whole 

 forming a broken, transverse band. Beyond this, near the hind margin 

 and extending from near the inner angle for about two-thirds of the width 

 of the wing, is a second, narrower band. Secondaries have a roseate 

 tinge. Abdomen above black, the segments bordered with v/hite, and the 

 extremity tipped with white ; beneath white. 



Described from four specimens, taken all at one time and flying by 

 day, in an " intervale " of Brome County, Province of Quebec. 



Only one other specimen of this insect has, as far ars I can learn, been 

 taken. It was discovered by Mr. Ashmead and Mr. Linell amongst 

 unnamed material in the National Museum at Washington, D. C. 



