46 ENTOMOLOGICAL SOCIETY OF ONTARIO. 



abdominal segments ; head and first segments small ; segments 2-7 gradually enlarging to 

 3 mm., and then tapering to the posterior extremity ; each segment -velvety claret color, 

 the velvety hairs only in the central part of the segments ; the intrasegmerital sutures 

 smooth, pale, in somespecim ns almost white ; head white, marked symmetrically on each 

 side with three black marks, the uppermost almost round, the middle one crescent-shaped, 

 and the lowest, above the ocelli, comma-shaped; spiracles brown, ringed with black ; on 

 each segment about six small black tubnrcles bearing slender tawny bristles ; thoracic 

 feet and pro-legs darkened externally. When walking this caterpillar has the same half- 

 looper appearance as the caterpillars of the Phisias, due to the fact that like them it has 

 only two pairs of aVjdominal pro legs. At the same time the fore part of the body is 

 moved from side to side with a wavering motion. 



Before spinning its cocoon the caterpillar ceases feeding for about a day and then 

 spins its flimsy cocoon through which the chrysalis can be easily seen. The pupal stage 

 lasts between 15 and 19 days. The moth when it emerges crawls up the sides of the 

 pitcher and easily forces its way through the gossamer-like covering. 



OATASTEGA ACERIELLA Clemens, SEMASIA SIGNATANA Clemens. 

 By The Rev. T. W. Fyles, Sooth Quebec. 



In my notes on "The Season of 1893," published in the Society's last Report, I 

 described the Oatastega larva and pupa. In telling of the habits of the larva I said, 

 " Then it bites away portions of the inner skin of ihe leaf and proceeds to make itself a 

 case " This, without addition may be somewhat misleading. — It makes its case of its ex- 

 crementa. The larva vacates its case, or rather tube, and drops from the tree about the 

 15th of September. The perfect insect appears in the middle of April next ensuing. The 

 following is a description of it : 



Length of body one-fourth of an inch. Expanse of wings five-eighths of an inch. 

 Colors, grey and brown. Antenna? filiform, grey ; p*lpi, large and pale grey ; face, clothed 

 with long, pale grey, feathery scales ; eyes, protuV)erant, pale grey ; thorax, grey ; abdo- 

 men, brownish grey ; legs, feithered throughout, pale grey — the tarsi barred with brown 

 on the upper side, as are also the tibise of the middle and foremost pairs ; primaries, pale 

 grey, having numerous, dark-brown lines, running from the costa with a backward curve 

 for about one-third of the width of the wing ; having also thiee conspicuous patches of 

 dark brown, one — somewhat triangular — in the centre with an angle touching the costa, 

 and one on each side of this, running from the inner margin about half-way across the 

 wing — the base and outer angle of the wing are clouded with brown ; secondaries, brown- 

 ish grey, darkening towards the hind margin ; fringes of all the wings grey. 



On Apiil 17th I sent specimens of the moth to Professor Fernald, and said : — "I 

 dare say the moth it krown under another name. If this be the case, which name will 

 stand good 1 " To this he very kindly replied. " I am in receif)t of your letter enclosing 

 specimens of C. aceriella Clem, which prove to be Semasla signatana Clem, and this last 

 name will hold, because it was given to an imago which was propeily described, and the 

 type is still preserved in the collectio'-s of the Am. Eut. Soc. in Phil., and because the 

 former name and description were for the early stages of some unknown insect." 



