. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 44. Fio-. 3 clothed, and extend considerably beyond the clypeal spine. The differencjES in the spines appear in figures 3, 4, 5. There are other obvious differences. A comparison with TV. canme, which it approaches in character, exhibits plain differences. According to Herrick Schaeffer, cannce has broad fore wings with acute apexes, the intra- veinular marginal spots are wanting, and there are two spots marking the intersection of the inner line with the median and submedian veins; in subcarnea the primaries are
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 44. Fio-. 3 clothed, and extend considerably beyond the clypeal spine. The differencjES in the spines appear in figures 3, 4, 5. There are other obvious differences. A comparison with TV. canme, which it approaches in character, exhibits plain differences. According to Herrick Schaeffer, cannce has broad fore wings with acute apexes, the intra- veinular marginal spots are wanting, and there are two spots marking the intersection of the inner line with the median and submedian veins; in subcarnea the primaries are not broader than in typhce, and the apexes are not more acute, the marginal spots are present, and the inner line is not marked by two spots; again, the hind wings are concolorous, while in catince they are not. The differences between this moth and N. sparganii are not so obvious. They agree very well in size; the shape of the primaries are quite closely alike, also the intraveinular marginal spots as well as those upon the veins indicating the marginal line; in sparganii the secondaries are darker, scaled towards the outer half, the inner half being lighter than the pri- maries; there are spots at the origin of veins, three and four, sur- rounded by four black dots (H. S.); in subcarnea this character does not appear, while the hind wings are of uniform shade. Sub- carnea is certainly very closely allied to sparganii. I have rarely found Sparganum bored by a larva apparently identical with the one from Typha; I have taken the same also in Scirpus. I introduce here figures showing the wide differ- ences in the frontal prolongations of subcarnea (Fig. 3), typha: (Fig. 4) and N. subflava (Fig. 5). These characters, it seems, afford good points for comparison and separation of species, for they prove to be quite constant, at least in the first. The spine of subflava is scarcely bilobed; it was not seen to be so until magnified by an inch objective. I have to acknowledge my obliga
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