Contributions to the systematics of the caddisfly genera Pseudostenophylax and Philocasca with special reference to the immature stages (Trichoptera: Limnephilidae)

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Larval and pupal stages have been associated and are described for western North American species in the caddisfly genera Pseudostenophylax and Philocasca. Diagnostic structures of the adults are described where they are necessary for a clear definition of the species. In the genus Pseudostenophylax, the larva of P. edwardsi (Banks) has been associated. It is described and shown to be identical with that designated by previous workers as Limnephilid Genus A. The diagnostic characters of the female genitalia in this species are illustrated for the first time. Observations on the habitat of this species are offered. In the genus Philocasca, larvae and pupae are described for two species, and the larva of a third, unassociated to species, is assigned to this genus and described. The rearing of a species not previously known, and here described in all except the egg stage, raises to five the number known in Philocasca. To bring the diagnoses for all of these species into a consistent form, the holotype males of all have been reexamined, illustrated, and comparatively described. Females are associated and described for three species, representing the first information on the females in this genus. Diagnostic keys are provided for the identification of males, females, and larvae, insofar as these are known. New distributional records are provided for certain of the species, but members of the genus as a whole must be regarded as extremely localized in distribution.

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ELECTRONIC FILE - Zoology: Invertebrates

SWAP (2/19/2016) citation:
Wiggins GB, Anderson NH. 1968. Contributions to the systematics of the caddisfly genera Pseudostenophylax and Philocasca with special reference to the immature stages (Trichoptera: Limnephilidae). [accessed 2016 Jan 27]; Canadian Journal of Zoology. 46(1):61–75. http://dx.doi.org/10.1139/z68-012.