Xylomoea Staud.

2615 X. didonea Sm. Scattered specimens from all parts of the State except the northern Plains region. August. Rare.

Namangana Staud.

2626 N. praecuta Sm. One specimen from Butte. Aug. 29, 1900, and one from Bozeman, Sept. 14, 1928.

Helotropha Led.

2636 H. reniformis Grt. One specimen from Havre, one from Bozeman, and two from Hamilton, August-September.

During the course of breeding experiments in Ephemeroptera which we have been carrying on during the past few years, considerable nymphal and associated adult material of the genus Ephemerella has been accumulated. The main source of these collections has been the district around Knowlton, Que. where the diversified nature of the country has been particularly favorable for our studies; in addition material is also at hand from the Lachine-Taudreuil section of the St. Lawrence Valley and from the Gatineau region in the vicinity of Wakefield., Que.

Length 3.6 - 4.3 mm.; width 1.8 - 2.2. mm. Body moderately convex. Brown or blackish, the legs and sometimes the venter paler ; shining.

Front rather coarsely, closely punctate, clypeus granulate, the granules fine and moderately close.

In the latter part of July 1929 I found several unknown Pyralid larvae tying up the leaves of a shrub of Rhamnus frangula Linn. (indentification by Dr. M. O. Malte, Botanist in the Victoria Museum, Ottawa) in the vicinity of Fulford, Que. The web formed was an untidy sort of affair mixed with dead leaves and excrement, and each web contained only a single larva.