150 THE CANADIAN ENTOMOLOGIST. 



On the nth the red of the three first segments of the abdomen on 

 the upper side and the black of the remaining segments on the upper 

 side were seen. The upper portions of the legs also and the bases of 

 the antennae were taking colour. 



On the 13th the insect was fully coloured, with the exception of a 

 white streak on either side of the abdomen. The legs had begun to 

 spread themselves. 



In the night of the 13th the wings burst from their cases, and before 

 the close of the day following the insect had risen upon its feet. 



No doubt the warmth of my house, and the rupturing of the cocoon, 

 hastened the changes of the insect. I should say the usual time of the 

 creature's appearance in the perfect state is the middle of June. The 

 galls formed by the Gelechian begin to show themselves in the first week 

 of June, and there is only one brood of G. gallce-diplopappi in the year.* 



Descriptions of the imagos, male and female, of T. tiinicula-rubra: — 



9 . — Expanse of wings, one-half inch ; length of body, one-quarter 

 inch ; length of antenna, two-tenths inch ; length of ovipositor, one-tenth 

 inch. 



Head black, punctured, and set with whitish hairs ; face convex ; 

 clypeus somewhat nasiform, hairy ; compound eyes of a rich madder- 

 brown ; ocelli black and prominent ; palpi long, five-jointed, flavescent ; 

 antennae filiform, basal joint oblong-ovate, black and hairy. In the 

 flagellum, which is brown, are thirty-one joints, of which the first, count- 

 ing from the ring-joint, is four times longer than thick. 



Thorax black, shining, deeply punctured ; mesothorax and scutel- 

 lum convex ; legs long and slender, the coxae black, trochanters and 

 femora fuliginous, tibife and tarsi ferruginous ; wings iridescent, slightly 

 hairy ; costal and externo-medial nervures hairy ; stigma large and brown ; 

 areolet rather large, pentagonal ; cubito-discoidal cell large ; the third 

 discoidal cell and the first apical cell of moderate size ; the second apical 

 cell large ; the basal nervures slightly and regularly curved. 



Abdomen fusiform ; petiole rather long and slender, recurved, jet 

 black ; the three first abdominal segments deep red, the remainder black ; 

 ovipositor ferruginous, straight, stiff and pointed — its case fuscous, blunt 

 and hairy. 



$, . — General appearance darker and less robust than that of the 

 female. Antennte dark brown, nearly black, twenty-six joints in the 

 flagellum, the first being five times as long as thick ; eyes prominent, 

 brown ; ocelli black ; palpi five-jointed, brown ; coxte black, hairy and 

 punctured — the hindmost pair unusually large ; first pair of legs ferrugin- 

 ous ; the rest fuliginous, with knees of lighter colour ; tibial spurs stout ; 

 wings smoky; abdomen long and slender; petiole black, extended, horn- 

 shaped ; three following segments red, the first and third edged with 

 black ; the rest of the abdomen black. 



* Wherever I have found T. tunicula - rubra I have found the skin over the 

 opening of the gall ruptured, I suppose by the ovipositor of the mother Trychosis. 



