112 THE CANADIAN ENTOMOLOGIST. 



laid on these features not only to point out their scope specifically, but to 

 show that the later developed species, constituting the numerous clusters of 

 the rutila and marginidens groups, have not yet had time to establish 

 themselves very fixedly, nor to acquire striking individualities, and that 

 the slight disparities now existing are in the main not surprising. It is 

 not hard to find parallels elsewhere — Datana may offer an example — and 

 doubtless the knowledge of larval development in many Noctuid genera 

 will bring other instances to the surface. Baptism larvae reach maturity 

 the first week in August, becoming from 40 to 44 mm. in length, and 

 change at once to shining brown pupse, which are typical with their allies 

 and transparent enough that the white stigmatal spots of the primaries can 

 be discerned through the shell directly before emergence. According to 

 the tabular arrangement of the imagoes in the recent Revision, it would 

 find a position in section twenty-four next to marginidens, Gn. Had the 

 larva remained unknown there might have been some hesitation in 

 separating it from the latter, as variation, especially in size, produces 

 some forms that come rather close to baptisitz. Guenee's type is a good- 

 s ; zed example, truly typical (this is more than can be said of the type of 

 appassionata, which is a slightly deformed specimen), showing the dentate 

 fringes which frequently become noticeable in the larger examples. Our 

 species differs in the colour of the basal spots, the size of the remform and 

 tint of ground colour, though the discrepancies are in no case great. In 

 another direction baptisice simulates circumlucens, whose larva is 

 unknown, but as a co-type rests in the writer's collection, and the other 

 types have been examined, a position of certainty is assumed here. 

 Appassionata is too unique in ornamentation to be confused, andfurcata, 

 as yet a very rare species, can in no way be confounded with the Provi- 

 dence species. To rutila there will be reference later. 



Some examples of an undescribed Hydrcecia from the Pacific coast 

 have been referred to the writer for description in this article. It seems 

 probable others may ultimately come to light from this source, since by 

 the universal habit of keeping close we often miss meeting species in flight 

 that become comparatively common when sought in their earlier stages. 



Hydrcecia insulidens, sp. now 



The ornamentation is typical of the rutila series ; ground colour, 

 a light chrome yellow, presumably quite bright in newly-emerged speci- 

 mens. The powdering of darker scales, common with others of the allied 

 species, is not so marked in this case, though the veins, in being denned 



