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PRELIMINARY STUDIES IN SIPHONAPTERA.—VI

Published online by Cambridge University Press:  31 May 2012

Carl F. Baker
Carl F. Baker
Affiliation:
Fort Collins, Colo.
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Extract

Genus Hystrichopsylla, Tschb.

1880. Taschenberg, Die Flohe, p. 83.

This genus has but a single species:—

Hystrichopsylla obtusiceps, Ritsema

1826. Curtis Brit. Ent., III., No. 114 (Pulex taipæ).

1831. Macquart, Ann. d. Sci. Nat., XXII., p. 405 (Pulex terrestris).

1868. Ritsema, Tijds. voor Entom., 2 ser. III., p. 173 (Pulex obtusiceps).

1880. Taschenberg, Die Flohe, p. 83 (Hytrichopsylla obtusiceps).

This remarkable flea has a heavier covering of spines and bristles than occurs in any other species. The head combs are on the discs of the cheeks with the spines pointing backward (as in Typhlopsylla gracilis and fraterna), instead of on the lower edges, there being 10 spines on either side. The first joint of the maxillary palpi is the longest. Pronotal comb with 20 spines on either side. The comb on the first abdominal segment consists of 20 spines on either side; that on the second segment, of 12 on either side, and that on the third segment, of 7 on either side. The tarsi are slender. Colour, chestnut-brown. Length of male, 3.5mm., of female, 5–5.5mm. It has been reported as occuring on Talpa europœa and Arvicola arvalis, in various parts of Europe.

Type
Articles
Information
The Canadian Entomologist , Volume 27 , Issue 7 , July 1895 , pp. 186 - 191
Copyright
Copyright © Entomological Society of Canada 1895

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References

* In this table I have followed Taschenberg very closely, as there are many of the species which I have never seen. The characterization of this genus in my second paper will have to be modified somewhat, as two species have come into my hands which are entirely without the head combs so general in the genus, and one in which there are five spines in each head comb.