On some nondescript Anoplura and Mallophaga

Abstract

This parasite approaches Neumann's Haematopinus (Polyplax) maniculatus, but is immediately recognised by the truncate proboscis, by the “ olecranon process ” of the hind pair of legs, and by the remarkable “ comb ” which terminates the abdomen of the ♀. Perhaps a new genus should be made to receive it.Linear, abdomen about four times the length of the head and thorax together. Head very broad, proboscis truncate, its lateral margins diverging to as far as the antennae, behind which the head enlarges at right angles. Post-antennal area rectangular, broad ; the occipital margin a little convex. At each posterior angle a long hair ; on the under surface, at about the level of the antennae, two short bristles, one on each side. Antennae of five segments, the first being thick and stout, the second narrower and the longest, the third short, and the fourth broad with a sharp prominence at the post-axial distal corner. Adjoining the prominence a small circular sense-organ which crosses the joint and occupies part of the base of the terminal segment. The latter is longer than the third or fourth, and has several spines at the end. Thorax broader than the head and broader behind than in front. A large flattened spheroidal spiracle at each lateral margin.