THE CANADIAN ENTOMOLOGIST 



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Femoral and sternal patches small, composed of spines as large 

 as those constituting the general chsetotaxy, with which the 

 ventral patches sometimes merge. 

 Genus Actornithophilus, n. gen. 

 3. Oesophageal sclerite and glands ap- 

 parently lacking, second sternite 

 never with asters of heavy spines. 

 Genus Dennyus Neumann. 

 Oesophageal sclerite and glands 

 present, although sometimes 

 quite small; second sternite gen- 

 erally with asters of heavy spines. 

 Genus Myrsidea Waterston. 



Genus Actornithophilus, n. gen. 



Figs. 10c, 11, 13f. 

 Menoponidic with small, rather in- 

 definite patches of spines upon the 

 ventral face of the posterior femora 

 and upon certain abdominal sternites, 

 the spines composing the patches as 

 large as those constituting the general 

 chaetotaxy and sometimes merging 

 with it. Thorax distinctly three-seg- 

 mented, the mesothorax small, but 

 clearly distinguishable. Head of a 

 characteristic shape, the anterior mar- 

 gin rounded, the temples very promi- 

 nent, their anterior margins nearly at 



right angles with the longitudinal axis of the body. Lateral margin 

 with a distinct notch before the eye; this notch backed up by a 

 small chitinous area. Oesophageal sclerite and glands present. 

 Male genitalia apparently characteristic, consisting of a very long 

 .and slender basal plate, continuous distally with a lamina at the 

 base of which the small paramera and slender endomera (?) are set. 



Species occurring, at least for the most part, upon Charadrii- 

 formes (Landce, Alcida, CharadriidcB). 



Type of the genus, Colpocephalum uniseriatum Piaget. 



Fig. 11. — Actornilhophilus uniser- 

 iatus (P). ventral side of male. 



