In 1924 Dr. Blatchley described this species (Canad. Ent., 56:167) from a unique male specimen collected near Dunedin, Fla., on March 27, 1918. Up to the present time, the female of the species has remained undescribed and, so far as I have been able to ascertain, no additional specimens of the species have been discovered.

Thanks to the generosity of Dr. Armand d'Orchymont, Conservateur of the Royal Museum of Natural History in Brussels, I have recently obtained reprints of certain of his papers published during the occupation of that country by the Germans.

In 1885 von Ernst Girschner described a remarkable Carcelia-like fly from the Thuringian district of central Germany which was noteworthy in that it possessed a number of paired plumose hairs on the head. The facial hairs were the more noticeable as they originate not on the facialia or parafacialia as normal bristles, but apparently in the ptilinal groove between the two regions, two pairs being found here and three pairs on the anterior part of the front.

The preceding instalment under this title was published in 1945 (Can. Ent., 77: 140-144). At this time I am including the description of five species of the genus Tipula from Washington, Oregon and California, collected by Messrs. T. H. G. Aitken, Mont A. Cazier, J. A. Macnab and A. L. Melander, to whom I am greatly indebted for the privilege of studying very extensive series of Tipulidae sent by them. Except where indicated to the contrary, the types of the novelties are preserved in my collection.

In the past, fumigation at temperatures much below 60°F. has not been widely advocated to control insect pests in unheated structures. The objections to such a practice have been based on a number of considerations which will be discussed later. The possibility of estending the schedule of treatments to lower temperatures is obviously of great importance in Canada, where the mean monthly temperatures in most parts of the country lie below 60°F. for 8 or 9 months of the year and where there are three or four months when the range is between 40° and 60°F.