Schizomyia patriniae Shinji, 1938

Elsayed, Ayman Khamis, Yukawa, Junichi & Tokuda, Makoto, 2018, A taxonomic revision and molecular phylogeny of the eastern Palearctic species of the genera Schizomyia Kieffer and Asteralobia Kovalev (Diptera, Cecidomyiidae, Asphondyliini), with descriptions of five new species of Schizomyia from Japan, ZooKeys 808, pp. 123-160 : 138-140

Schizomyia patriniae Shinji, 1938 comb. rev. Figs 77-83, 84-85; Table S4

Schizomyia patriniae Shinji, 1938: 372.

Asphondylia partriniae Shinji, 1944: 376, missp. of patriniae .

Asteralobia patriniae (Shinji, 1938)

Characters as in S. achyranthesae except for the following:

Material examined.

All obtained from flower bud galls on Patrinia villosa ( Valerianaceae ) in Japan. 6 larvae: collected from Maruyama, Ojiya City, Niigata Prefecture on 12.x.1981, K. Yamagishi leg. 1♂: Iozan, Kanazawa City, Ishikawa Prefecture on 17.x.1978, emerged on 22.iv.1979, J. Yukawa leg. 2♂, 4♀, 2 pupal exuviae: collected from Kyuragi, Karatsu City, Saga Prefecture on 12.x.2015, M. Tokuda leg., emerged on 23.viii.2016, reared by A. K. Elsayed. 2♂, 3♀, 2 pupal exuviae: collected from Kyuragi, Karatsu City, Saga Prefecture on 12.x.2015, M. Tokuda leg., emerged on 28.viii.2016, reared by A. K. Elsayed. 2♂: collected from Kyuragi, Karatsu City, Saga Prefecture on 12.x.2015, M. Tokuda leg., emerged on 29.viii.2016, reared by A. K. Elsayed.

Description.

Head (Fig. 77): Compound eyes separated on vertex by a diameter of 0.25-1 facets, eye bridge consist of 5-6 facets long. Fronto-clypeus with 15-20 setae (n = 9). Palpus: first segment ca 34.1 μm, second 1.4 times as long as the first, third 1.4 as long as the second, fourth segment 1.5 as long as the third.

Thorax: Wing (Fig. 80) length 1.83-2.09 mm (n = 5) in female, 1.50-1.83 mm (n = 5) in male. Anepimeral setae 17-23 (n = 8); mesanepisternum scales 16-20 (n = 7); lateral scutum setae 32-46 (n = 8). Lengths of leg segments as Suppl. material 1: Table S4.

Female abdomen (Figs 82, 83): Median pair of trichoid sensilla present on sternites II–VII. Sternite VII about 3 times as long as preceding. Ovipositor: protrusible needle-like portion about 4.8 as long as sternite VII.

Male abdomen: Trichoid sensilla present on sternites II–VIII in median position, except on VIII in lateral position. Terminalia (Fig. 84): Gonocoxite length about 3.3 times as long as gonostylus. Gonostylus with slim tooth in the dorsal and ventral views.

Mature larva: Abdominal segment VIII without dorsal papillae. Two groups of lateral papillae on all thoracic segments, each consisting of 2 setose and 1 asetose papillae. The terminal segment with 1 setose and 6 asetose terminal papillae ( Yukawa 1983).

Pupa (Fig. 85): Prothoracic spiracle 260-290 μm long (n = 5).

Distribution.

Japan: Hokkaido, Honshu and Shikoku ( Yukawa and Masuda 1996).

Remarks.

This species had been described by Shinji (1938) under the genus Schizomyia . Then, Yukawa (1983) combined the species with Asteralobia because of its shallowly constricted male flagellomeres. Because Asteralobia is synonymized under Schizomyia in this paper, S. patriniae is combined again with Schizomyia .

Schizomyia patriniae is distinguishable from known Schizomyia species, except three species that were previously treated as Asteralobia and newly combined here under Schizomyia , i.e. S. sasakii , S. soyogo , and S. humuli , by the presence of shallow constrictions on male flagellomeres and the absence of corniform papillae on the terminal larval segment. S. patriniae can be easily separated from S. sasakii , S. soyogo and S. humuli based on the number of papillae on the larval terminal segment: S. patriniae possesses two setose and six asetose terminal papillae, but S. sasakii and S. soyogo have only six setose terminal papillae, and S. humuli has four setose terminal papillae.