Saphenista dilutana Brown 2019, new combination
Creators
Description
Saphenista dilutana (Walsingham), new combination
Fig. 6, 10
Cochylis dilutana Walsingham 1879: 29, pl. 67, fig. 3.
Phalonia dilutana McDunnough 1939: 60.
Phalonidia dilutana Powell 1983: 42.
Incertae sedis [“ Cochylini Unplaced ”] dilutana: Razowski 1964: 383; Brown 2005: 208; Metzler and Brown 2014: 278.
Described in Cochylis and transferred to Phalonia by McDunnough (1939), C. dilutana was treated as “incertae sedis” by Razowski (1964: 359), who designated a lectotype (NHMUK) and illustrated its female genitalia. Powell (1983) transferred it to Phalonidia, and Brown (2005) and Metzler and Brown (2014) followed Razowski (1964), treating it as “unplaced Cochylini.”
After dissecting numerous females of Saphenista from the western U.S., it became clear that the thickened apophyses of the lectotype of P. dilutana (see Razowski 1964: fig. 82) are very similar to those of S. latipunctana (Fig. 13). Also, the male genitalia of the paralectotype (USNM) from the type locality have an expanded distal end of the median process of the transtilla characteristic of Saphenista. On the basis of these two features, P. dilutana is transferred to Saphenista.
Diagnosis. Saphenista dilutana is extremely similar to S. latipunctana. Its forewing pattern falls within the range of variation of the latter, and its female genitalia are identical to those of the latter. Based on these features it is possible that S. dilutana is a synonym of S. latipunctana. However, subtle differences in the male genitalia may separate the two. In S. latipunctana the distal end of the median process of the transtilla is broad and T-shaped, whereas in S. dilutana (known from a single male paralectotype from the type locality) it is slightly narrower and more U-shaped owing to the shorter “arms” of the process; and the cornutus is slightly longer in S. dilutana.
Types. Lectotype ♀, USA, Oregon, Jackson Co., Rogue River, 4–6 May 1872, Walsingham, BMNH slide 7756 (NHMUK). Paralectotype ♂, same data as lectotype (USNM).
Notes
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- NHMUK
- Event date
- 1872-05-04
- Family
- Tortricidae
- Genus
- Saphenista
- Kingdom
- Animalia
- Order
- Lepidoptera
- Phylum
- Arthropoda
- Scientific name authorship
- Brown
- Species
- dilutana
- Taxonomic status
- comb. nov.
- Taxon rank
- species
- Type status
- lectotype , paralectotype
- Verbatim event date
- 1872-05-04/06
- Taxonomic concept label
- Saphenista dilutana (Walsingham, 1879) sec. Brown, 2019
References
- Walsingham, Lord T. de G. 1879. Illustrations of typical specimens of Lepidoptera Heterocera in the collection of the British Museum, volume 4, North American Tortricidae. British Museum; London. 84 p.
- McDunnough, J. 1939. Check List of the Lepidoptera of Canada and the United States of America. II. Microlepidoptera. Memoirs of the Southern California Academy of Sciences 2. The Academy; Los Angeles. 171 p.
- Powell, J. A. 1983. Tortricoidea. p. 31 - 42. In: R. W. Hodges (ed.). Check list of the Lepidoptera of America north of Mexico. E. W. Classey, Ltd., and Wedge Entomological Research Foundation; London. 284 p.
- Razowski, J. 1964. Studies of the Cochylidae (Lepidoptera). Part X. The genitalia of the types of the Cochylidae described by Walsingham. Annales Zoologici 22: 355 - 385.
- Brown, J. W. 2005. World catalogue of insects. Volume 5: Tortricidae (Lepidoptera). Apollo Books; Stenstrup, Denmark. 741 p.
- Metzler, E. H. and J. W. Brown. 2014. An updated check list of the Cochylina (Tortricidae, Tortricinae, Euliini) of North America north of Mexico including Greenland, with comments on classification and identification. Journal of the Lepidopterists' Society 68: 274 - 282.