Gypsonoma Meyrick, 1895

Type species: Tortrix dealbana Frölich, 1828.

Brown (2005) included 39 species in Gypsonoma, ranging throughout much of Holarctic Region, and in the Palearctic extending south through the Oriental Region and the Middle East (Turkey, Afghanistan, Saudi Arabia, and Iran). Razowski and Krüger (2007) recently transferred to the genus three species from the Afrotropical region, i.e., G. opsonoma (Meyrick, 1918), G. paradelta (Meyrick, 1925), and G. scenica (Meyrick, 1911), increasing significantly the geographic range of the genus and bringing the total number of included species to 42. Aarvik (2008b) provided details on the systematics of and variation in G. paradelta and synonymized Eucosma picrodelta Meyrick, 1932 with it.

FIGURES 40–45. Morphological features of new species. 40, Head of Concinocordis wilsonarum, 41, Underside of hindwing pouch of male Thaumatotibia salaciae, 42, Modified 8th abdominal segment of male Endothenia ator, 43, Wing venation of Concinocordis wilsonarum.

The male genitalia of many species of Gypsonoma are distinguished by a conspicuous, narrow margin along the distal perimeter of the cucullus that is devoid of spines and usually less sclerotized, and a dense patch of elongate scales from the tegumen near its junction with the vinculum (e.g., see Gilligan et al. 2008: male genitalia figs. 206–209). Females invariably have a two-bristled frenulum (Rota et al. 2009).

The vast majority of recorded larval hosts for species of Gypsonoma are Populus and Salix (both Salicaceae) from which the following species have been reared: G. aceriana (Duponchel, 1842); G. adjuncta Heinrich, 1924; G. bifasciata Kuznetsov, 1966; G. dealbata (Frölich, 1828); G. euphraticana (Amsel, 1935); G. fasciolana (Clemens, 1864); G. haimbachiana (Kearfott, 1907); G. minutana (Hübner [1796–1799]); G. nitidulana (Leinig and Zeller, 1846); G. oppressana (Treitschke, 1835); G. riparia Meyrick, 1933; G. sociana (Haworth, [1811]); and G. substitutionis Heinrich, 1923. However, a few of these same Gypsonoma species also have been reared from Rosaceae, Fagaceae, Caprifoliaceae, and Ericaceae. The new species described below was reared from Scolopia and Ludia (both Salicaceae, formerly Flacourtiaceae) in Kenya.