A new species of Ptycholoma (Lepidoptera: Tortricidae) from South China Author Chen, Liusheng Author Jinbo, Utsugi Author Wang, Min text Zootaxa 2009 2087 65 68 journal article 10.5281/zenodo.187401 c943bf63-30ad-4973-a98a-e7c43a1b4b53 1175-5326 187401 Ptycholoma lata Chen & Jinbo , nov. sp. ( Figs. 1, 3 ) HOLOTYPE 3, China , Hunan Province, Sangzhi County, Tianpingshan Mt., Zhangjiajie City, 12 May 2007 , Chen Liusheng. PARATYPE (13). Same data as holotype . Diagnosis . The new species is similar to P. lecheana in the forewing pattern and male genitalia, but can be distinguished from the latter by the following characters: the forewing of P. lata has much broader subbasal and median fasciae, and the branch arising from the median fascia is shorter and digitiform; the male genitalia have a smaller uncus that does not expand apically, and the valva is not tapering toward the apex. Description. Male ( Fig. 1 ). Head : Frons and vertex orange. Antenna brownish fuscous. Labial palpi short, porrect, second segment not expanded apically. Thorax : Wing expanse 16–17 mm ; forewing ground color orange, with broad dark leaden gray fascia; basal patch small, irregular leaden gray, continguous with base of costal fold; costal fold leaden gray, extending nearly to middle of costa; subbasal fascia broad, leaden gray, extending from ca. 1/3 distance between base and apex to dorsum, width of faciae at dorsum ca. 2 times width at costa; median fascia leaden gray with darker edge, extending obliquely from distal end of costal fold to tornus; a short gray brown projection from base of R3 and R4 toward termen, about 1/3 length of median fascia, ca. same width as posterior margin of median fascia; subbasal and median fasciae joined at lower edge of discal cell by line of dark gray; area from distal end of costal fold to tornus leaden brown. Hindwing uniformly fuscous, with whitish cilia. Abdomen : Male genitalia ( Fig. 3 ) with uncus broad, uniform in width, with slightly concave apex; tegumen rather broad; socius small; gnathos a large long, terminal plate projecting ventrally, with obtuse apex; transtilla expanded and spinose laterally; valva elongate, rather narrow, costa membranous, concave medially; distal half of valva digitiform, not tapered toward apex, round apically; sacculus ca. ½ length of valva, with sharp, apical, digitiform free tip projecting dorsad; juxta small; vinculum simple; aedeagus stout, with large ventral process and short terminal thorn; cornuti deciduous, flat spines forming a cluster. Female genitalia unknown. FIGURES 1–4. Ptycholoma species. Ptycholoma lata , adult; 2. Ptycholoma lecheana , adult; 3. Ptycholoma lata , male genitalia; 4. Ptycholoma lecheana , male genitalia. Distribution . China (Tianpingshan Mt., Hunan Province). Etymology . The species name is from the Latin ‘ latus ’, which means ‘broad’, referring to the broad subbasal and median fasciae of the forewing. Remarks. Among the members of Ptycholoma , three species, P. lata , P. lecheana and P. erschoffi , form a group defined by the orange of reddish forewing with broad leaden gray fasciae and the male genitalia with a very small juxta and short deciduous cornuti. In addition, P. l a t a and P. lecheana share a unique character: the aedeagus in both species has two apical processes. Hence, P. lecheana is likely the most closely related congener of P. lata . P. lata can be distinguished from P. lecheana by the following: the broad leaden gray forewing subbasal and median fasciae ( Fig. 1 ) are narrow and silver-gray in P. lecheana ( Fig. 2 ); the digitiform branch arising from the median fascia in P. l a t a is conspicuously hook-shaped in P. lecheana ; the uncus in P. lata is smaller than that of P. lecheana ; the valva is elongate and parallel-sided in the distal portion in P. lata ; and the costa is straight basally in P. l a t a ( Figs. 3–4 ).