THE CANADIAN ENTOMOLOGIST 15 



Penultimate stage: Paler and more pinkish, the Hn6s yellowish; 

 tubercle 1 on joints four, five and six the same as on other joints, 

 whereas the ally has them enlarged at this point. 



Maturity: Head and plates typical; colour yellowish trans- 

 lucent, with lines entirely obliterated; tubercles mostly minute, 

 I and II, except on twelve are only discernable as the merest dots 

 under a lens, IV alone retains its usual size, and in comparison to 

 microscopic 1,11, III and Ilia, seems proportionately large, though 

 it does not exceed the spiracle, on joint ten IVa shows same size 

 as IV, a trifle high, but of similar prominence in bearing seta; 

 length 42 mm.; leaves plant for pupation July 31. 



The pupa shows no departure from the usual form, and is less 

 cylindrical than its ally, which normally changes in its gallery 

 and is effected by the confined quarters. Emergence data are not 

 at hand, but from that of flown specimens must centre around the 

 first ten days of September, whereas the near congener is a month 

 later. 



Papaipema nepheleptena Dyar. 



A recent re-examination of the unique type of this species, 

 coupled with the wider acquaintance by the more extended breeding 

 of P. mceseri Bird, (1911) furnishes conviction there is but one 

 species involved, and that the Dyar name has precedence, being 

 proposed in 1908. The type, a flown and rather worn specimen, 

 is from New York, and regrets over our error of determination are 

 now tempered by the establishment of the larval history for this 

 local but heretofore elusive nepheleplena. Thus it will appear our 

 larval notes for the Turtle-head borer, Can. Ent., Vol. XLV, p. 120, 

 are to be associated with the latter name. A brief addenda to 

 these may be made for: 



Stage I — Cephalic and anal shields well developed, also the 

 the setse; the first four abdominal segments show as a dark girdle, 

 the extremities semi-translucent. 



Stage II — Head is without side line, nor is its continuation on 

 the lower edge of shield yet manifest; the dark girdle not crossed 

 by the white longitudinal lines; tubercles concolorous. 



Stage III — Similar, with the generic features now well evident; 

 the dorsal line alone crosses the girdle, showing as the merest white 



