Promalactis rostriformis, Du, Zhaohui, Li, Houhun & Wang, Shuxia, 2011

Du, Zhaohui, Li, Houhun & Wang, Shuxia, 2011, Taxonomic study of the genus Promalactis Meyrick (Lepidoptera, Oecophoridae) from Hainan Province, China, Zootaxa 3044, pp. 49-64 : 51

Promalactis rostriformis sp. nov.

( Figs. 1 , 13 , 23 )

Type material: CHINA, Hainan Province: Holotype, 3, Mt. Jianfeng (18°25ʹN, 108°28ʹE), 940 m, 6.iv.2007, leg. Zhiwei Zhang & Weichun Li, genitalia slide No. YGX 0 7178. Paratypes: 26 3, 20 ƤƤ, 4–7.vi.2007, other same data as holotype; 1 3, 1 Ƥ, same locality as holotype, 800–900 m, 4–5.xii.2009, leg. Zhaohui Du & Linlin Yang; 1 3, Xinglong Town (18°27ʹN, 110°7ʹE), 100 m, 2.viii.2008, leg. Bingbing Hu & Li Zhang; 1 3, Protection Station of Mt. Liulian (18°29ʹN, 110°25ʹE), 100 m, 23.vii.2008, leg. Bingbing Hu & Li Zhang; 1 3, Nancha River, Mt. Bawang (19°04ʹN, 109°02ʹE), 600 m, 10.vi.2007, leg. Zhiwei Zhang & Weichun Li; 3 ƤƤ, Tianchi, Mt. Jianfeng, 790–810 m, 30.iii–2.iv.2008, leg. Bingbing Hu & Haiyan Bai; 1 Ƥ, 11.vi.2010, leg. Bingbing Hu & Jing Zhang; 1 Ƥ, Shuiman Country, Mt. Wuzhi (18°31ʹN, 109°24ʹE), 640 m, 21.v.2007, leg. Zhiwei Zhang & Weichun Li; 1 Ƥ, Mt. Limu (19°09ʹN, 109°28ʹE), 650 m, 11.iv.2008, leg. Bingbing Hu & Haiyan Bai.

Description. Imago ( Fig. 1 ). Wingspan 7.5–10.5 mm. Head with vertex shining white, frons yellowish brown. Labial palpus with second segment dark ochreous brown on outer surface, paler on inner surface; third segment with basal half white, distal half black. Antennal scape white; flagellum with basal third white, median third white ringed with dark brown, distal third grayish black. Thorax and tegula dark ochreous brown. Forewing ochreous brown, mixed with black scales apically; markings white edged with black: narrow oblique straight fascia from costal 1/4 to dorsal 2/5; large ovate patch at about costal 3/4; cilia along apex white on basal 2/3, ochreous yellow on distal 1/3, along termen and tornus gray tinged with black. Hindwing and cilia gray. Tibia of midleg with a tuft of long white scales at apex.

Male genitalia ( Fig. 13 ). Uncus nearly conical, broadly rounded in basal 2/3, narrowed to rounded apex distally. Gnathos broad, subtriangular, narrowly rounded apically. Valva narrow, nearly parallel dorsoventrally; apex bifurcate: dorsal process spine-like, ventral process large, rostriform, bearing a small dorsoapical tooth; costa short, straight, about half length of sacculus. Sacculus slightly widened before apex. Juxta slender; lateral lobes reaching base of uncus, acute at apex. Saccus about 1.5 times length of uncus, pointed apically. Aedeagus about 1.3 times length of valva, straight, with a long sclerotized spine-like apical process; cornutus about 1/3 length of aedeagus.

Female genitalia ( Fig. 23 ). Apophysis anterioris about 1/2 length of apophysis posterioris. 8th sternite deeply concave medially on both posterior and anterior margins. Antrum rectangular, wider than long, slightly emarginate medially on posterior margin. Ductus bursae sclerotized except for a short membranous portion near corpus bursae; sclerotized gear-like plate placed at conjunction of ductus bursae and corpus bursae. Corpus bursae ovate, sclerotized posteriorly; three rectangular signa occupying most of corpus bursae: one smooth, blunt anteriorly, two densely spined, narrowly rounded anteriorly.

Diagnosis. This new species is superficially similar to P. raptitalella Lvovsky, 2000 , but can be distinguished from it by having a triangular gnathos with narrowly rounded apex and a juxta with lateral lobes reaching the base of the uncus in the male genitalia, and the corpus bursae with three rectangular signa in the female genitalia. In P. raptitalella Lvovsky , the gnathos is bilobed, the lateral lobes of the juxta do not reach the base of the uncus, and the corpus bursae has a single, cruciate signum.

Etymology. The species epithet is derived from the Latin rostriformis (= rostriform), referring to the shape of the ventroapical process of the valva.

Figures

FIGURES 1 – 6. Adults of Promalactis spp. 1, P. rostriformis sp. nov., paratype; 2, P. fascispinata sp. nov., holotype; 3, P. a p i - cisetifera sp. nov., paratype; 4, P. h a i n a n e n s i s sp. nov., paratype; 5, P. tauricornis sp. nov., holotype; 6, P. c l a v a t a sp. nov., holotype (2 – 6 3, 1 Ƥ).

FIGURES 13 – 18. Male genitalia of Promalactis spp. 13, P. rostriformis sp. nov., holotype, slide No. YGX 07178; 14, P. f a s - cispinata sp. nov., holotype, slide No. YGX 08087; 15, P. apicisetifera sp. nov., paratype, slide No. YGX 07162; 16, P. h a i n a n - ensis sp. nov., holotype, slide No. DZH 08051; 17, P. tauricornis sp. nov., holotype, slide No. YGX 07158; 18, P. clavata sp. nov., holotype, slide No. YGX 07170.

FIGURES 23 – 30. Female genitalia of Promalactis spp. 23, P. rostriformis sp. nov., paratype, slide No. YGX 07188; 24, P. apicisetifera sp. nov., paratype, slide No. YGX 07163; 25, P. h a i n a n e n s i s sp. nov., paratype, slide No. DZH 08048; 26, P. tauricornis sp. nov., paratype, slide No. YGX 07156; 27, P. lunularis sp. nov., paratype, slide No. YGX 07181; 28, P. carinata sp. nov., paratype, slide No. DZH 08052; 29, P. j e z o n i c a (Matsumura), slide No. YGX 07173; 30, P. multimaculella Lvovsky, slide No. DZH 08085.