Trichoptera: Philopotamidae of Gunnison County, Colorado
Dolophilodes aequalis - Finger-net Caddisflies, Medium evening sedge (Banks 1924)
Updated 18 Oct 2012
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Photos, Map, Museum specimens, DNA - Barcodinglife.org
Illustration - University of Alberta Entomology Collection Species page
Has illustration of male genitalia, description, habitat information, range and more.
ReferencesArmitage, BJ 1991 Diagnostic atlas of the North American caddisfly adults. I. Philopotamidae (2nd ed.). Athens, AL: The Caddis Press. 79 pages.
Banks, N. 1924 Descriptions of new neuropteroid insects. Bulletin of the Museum of Comparative Zoology, Harvard University 65:421-455.
Described as Philopotamus aequalis.
Djernæs,M 2010 Morphology, function and evolution of the sternum V glands in Amphiesmenoptera. PhD thesis, University of Alberta. 368 pages.
Quote from page 3-4: "Fenestrae (a pair of patches of transparent cuticle) are present on sternum IV in females of Philopotamidae (Trichoptera), Eriocraniidae, Neopseustidae and Nepticulidae (Lepidoptera) (Davis 1975; Ivanov & Melnitsky 1999, 2002). Ivanov and Melnitsky (1999, 2002) reported secretory tissue directly connected to the fenestra in philopotamids without the presence of either a gland sac or gland duct. This is structurally simpler than the typical gland configuration; hence Ivanov and Melnitsky (1999, 2002) suggested this as the gland type originally found in ancestral Amphiesmenoptera."
Djernæs,M and Sperling,FAH 2012 Exploring a key synapomorphy: correlations between structure and function in the sternum V glands of Trichoptera and Lepidoptera (Insecta). Biological Journal of the Linnean Society, 106: 561-579.
Quote from page 28: " Cuticular modifications : Annulipalpia: A patch of scaly cuticle surrounding the gland opening (Figures 2-2 B-E; 2-3 A, B; 2-4 C, D; 2-5 D, E; 2-17 A, F; 2-18 A) is found in several annulipalpians: representatives of Dolophilodes and Wormaldia(both Philopotamidae), Ecnomus tenellus (Ecnomidae), Xiphocentron haitiense (Xiphocentronidae), Lype diversa and Tinodes sigodanus (both Psychomyiidae). The size of the individual ‘scales’ strongly suggests that each ‘scale’ is produced by one epidermal cell, with the grooves between the ‘scales’ demarcating the border between individual epidermal cells. "
Hauer,FR; Stanford,JA; Ward,JV 1989 Serial discontinuities in a Rocky Mountain river. II. Distribution and abundance of Trichoptera. Regulated Rivers: Research and Management 3, 177-182.
Jannot,JE; Kerans,BL 2003 Body size, sexual size dimorphism, and Rensch's rule in adult Hydropsychid caddisflies (Trichoptera: Hydropsychidae). Canadian Journal of Zoology 81, 1956-1964.
Ross,HH 1938 Descriptions of nearctic caddis flies (Trichoptera) with special reference to the Illinois species. Illinois Natural History Survey Bulletin 21 4, 101-183.
Sukacheva,ID and Rasitsyn,AP 2004 Jurassic Insects (Insecta) from the Sai-Sagul Locality (Kyrgyzstan, Southern Fergana) Paleontol. J. 38(2): 182-186. PDF
The genus Dolophiloides was present during the Jurassic.
Ward, JV 1981 Altitudinal distribution and abundance of Trichoptera in a Rocky Mountain stream. In Proceedings of the Third International Symposium on Trichoptera (pp. 375-381). Springer Netherlands.
Brown,WS 2005 Trichoptera (Caddisflies) of Gunnison County, Colorado, USA