Early this spring (1928) several complaints were received by the Department of Biology of the University of Toronto, of infestations of dwelling houses by Dermestids. The most pronounced case was in a new house in the newer section of North Toronto where beetles had been appearing in such numbers that their presence and continued reoccurrence was driving the tenants to hysterics and to the point of moving out of the house. Specimens brought in proved to be Anthrenus scrophulariae Linn. larvae and adults.

As is indicated by the numbering of the figures in the accompanying plates, the following discussion of the head capsule of lower Arthropods is a continuation of the discussion of the head capsule of higher Arthropods given in a previous paper (Canadian Entomologist, LX. 1928, p. 129). The figures were numbered consecutively throughout all of the plates which were originally intended for inclusion in a single paper, and the original numbering has been retained in the accompanying plates (despite the fact that limitation of space necessitated dividing the original discussion into two parts) because reference was made to certain of the accompanying figures in the previous paper, and it would create confusion to later change the numbers which had been referred to in a previous paper. On this account, the accompanying plates begin with “Fig. 55.” instead of “Fig. I.”

Length, 5-5.8 mm.; width 2.3-2.6 mm. Moderately elongate ; rather strongly convex; slightly wider posteriorly. Black, the legs and sometimes the ventral thoracic sclerites brown; strongly shining throughout.