Graphium antiphates matsui T. Saito & Vu, 2023

Tamamitsu, Saito & Lien, Vu Van, 2023, Four new subspecies of butterflies (Lepidoptera, Papilionoidea) from Phu Quoc Island, southern Vietnam, Zootaxa 5293 (1), pp. 161-170 : 162-164

Graphium antiphates matsui T. Saito & Vu subspec. nov.

Figure 3

Description:

Male. Upperside. Compared to the nominate subspecies distributed in Indochina, southern China, the new taxon has a darker tinge of the wing pattern colouration. It also has smaller size and darker ground colour. The whitish area has slight creamy tint. Broad marginal and postdiscal black bands fused broadly at veins 2-4. Hindwing has the broad black marginal border and broad gray submarginal area extending to the apical portion. The features listed above are the main characters of the new subspecies. Underside. Generally, forewing pattern and colouration similar to that on upperside. The submarginal black bands on the hindwing are yellow-white strips exceed 2 nd veins in most individuals.

Forewing length: J 36.2–41.3 mm (n = 12, avg. 38.9 mm).

Female is unknown.

Diagnosis. There are a number of distinctive features for subspecies of G. antiphates . For example, 1. Shape and size of black markings within discal cell and postdiscal and marginal bands on the upper surface of the forewing; 2. Ground color of upperside on both wings; 3. Size of gray dust subterminal area on the upperside of hindwing; 4. Submarginal blackish spots in cells 4 to 8 on the upper surface of hindwing.

The new subspecies may easily to be distinguished from other subspecies by the prominent broad gray subterminal border on the upperside of the hindwing which is extended from cell 2 to cell 7. In other subspecies the gray patch is usually restricted by cell 2-4. Upperside forewing with broad terminal and subterminal bands fuse at cell 3, while in other subspecies they are usually separated.

Type materials. Holotype ( HT). J S. Vietnam, Kien Giang province, Phu Quoc Is., Cua Duong commune, Suoi Da Ban , 29.XII.2015, T. Saito leg. Paratypes (PT). 11J, from the same locality as HT; 1J 19.XI.2006, H. Matsui leg., 2J 22.XI.2013 T. Saito leg.,4J 29.IV.2014 T. Saito leg.,1J 5.VII.2013 T. Saito leg.,1J 3.III.2014 T. Saito leg.,1J 27.XII.2014 T. Saito leg.,1 J 1.VII.2015 T. Saito leg.

Etymology. The subspecific name is dedicated to Mr. Hiroshi Matsui who collected the specimen o f this taxon for the first time.

Figures

FIGURE 3. Graphium antipates matsui T. Saito & Vu, ssp. nov., A–B—HT J, B—Ditto underside; C–D—PT J same location as HT., C—Ditto un.; E—J G. a. antiphates (Cramer, [1775]), Thac Mai Dong Nai, S. Vietnam, F—Ditto un.; G—J G. a. atiphates, Ba Ho, Khanh Hoa, C. Vietnam, H—Ditto underside.