Cyrnellus fraternus ( Banks 1905 )

Rueda Martín, Paola A., Gibon, Francois-Marie & Sganga, Julieta V., 2021, New species and records of the Neotropical genus Cyrnellus (Trichoptera: Polycentropodidae) and the re-establishment of C. minimus and C. marginalis, Zootaxa 5082 (1), pp. 15-29 : 20

publication ID	https://doi.org/10.11646/zootaxa.5082.1.2
publication LSID	lsid:zoobank.org:pub:795488E3-DE16-4268-8968-628C9D5E3A4A
DOI	https://doi.org/10.5281/zenodo.5783118
persistent identifier	https://treatment.plazi.org/id/03DEE90B-FFAF-4517-FF0A-FA1EFE70F871
treatment provided by	Plazi (2021-12-15 10:30:43, last updated 2024-11-29 15:46:45)
scientific name	Cyrnellus fraternus ( Banks 1905 )
status

Treatment

Cyrnellus fraternus ( Banks 1905) View in CoL View at ENA

Figs 3E–3K View FIGURE 3

Nyctiophylax fraternus Banks 1905: 17 View in CoL (original description); Ross 1938: 12 (designation of female lectotype).

Cyrnellus fraternus View in CoL ; Flint 1964: 469–471 (synonymy, description of larva); Holzenthal & Calor 2017: 419 (catalogue, synonymy).

Discussion. This species was described originally based on a female from Plummer’s Island, Maryland, USA. The females of C. fraternus and C. marginalis are currently indistinguishable. Flint (1964) thought that C. fraternus and C. marginalis are synonyms and that C. fraternus is the only species of Cyrnellus in North America. That “single species” was thought to be widely distributed in North America, occurring in at least Alabama, Arkansas, Illinois, Kentucky, Michigan, Minnesota, Missouri, Ohio, Oklahoma, Tennessee, and Wisconsin ( Ross 1944). Records from these and many additional states have been reported since 1944 (Rasmussen & Morse 2021). Based on our conclusion that males of the two species are distinguishable (see diagnosis of C. marginalis , Figs 3E–3K View FIGURE 3 ), identifications of voucher specimens from those many reports will need to be reviewed in order to determine the ranges of these two species in North America.

References

Banks, N. (1905) Descriptions of new Nearctic neuropteroid insects. Transactions of the American Entomological Society, 32, 1 - 20.

Flint, O. S. Jr. (1964) Notes on some Neartic Psychomiidae with special reference to their larvae (Trichoptera). Proceedings of the United States National Museum, 115 (3491), 467 - 481. https: // doi. org / 10.5479 / si. 00963801.115 - 3491.467

Holzenthal, R. W. & Calor, A. R. (2017) Catalog of the Neotropical Trichoptera (Caddisflies). ZooKeys, 654, 1 - 566. https: // doi. org / 10.3897 / zookeys. 654.9516

Ross, H. H. (1938) Lectotypes of North American caddisflies in the Museum of Comparative Zoology. Psyche, 45, 1 - 59. https: // doi. org / 10.1155 / 1938 / 25928

Ross, H. H. (1944) The caddisflies or Trichoptera of Illinois. Bulletin of the Illinois Natural History Survey, 23, 1 - 326. https: // doi. org / 10.21900 / j. inhs. v 23.199

Figures

FIGURE 3. Cyrnellus spp., male genitalia. 3A–3D, Cyrnellus marginalis Banks 1930: 3A, left lateral; 3B, right inferior appendage, ventral; 3C, phallus, left lateral; 3D, phallus, dorsal. 3E–3K, Cyrnellus fraternus (Banks 1905): 3E, left lateral; 3F, right inferior appendage, ventral; 3G, phallus, left lateral; 3H, phallus, dorsal; 3I–3K, variations of the right inferior appendage, ventral. ap = apex of an inferior appendage; as = subapicomesal spine; dlp = dorsolateral process; ds = dorsal phallic sclerite; ia = inferior appendage; iap = intermediate appendage; ix = sternite IX; mlp = mesolateral process; mvp = mesoventral process.