Eloeophila lilliputina (Alexander, 1936)

Kato, Daichi, 2021, Taxonomic study of the genus Eloeophila Rondani, 1856 of Japan (Limoniidae Diptera), Zootaxa 4995 (3), pp. 425-451 : 440

Eloeophila lilliputina (Alexander, 1936)

( Figs 8A–G , 13D )

Limnophila (Elaeophila) lilliputina Alexander, 1936a: 246 .

Type locality: Japan, Honshu, Kyoto, Kyoto-shi, Kibune .

Eloeophila lilliputina: Nakamura (2014: 12) ; Oosterbroek (2021).

Material examined. HOLOTYPE male, JAPAN, Honshu, Kyoto, Kibune, 17.VIII.1932, Tokunaga ( USNM) . Non-type material: JAPAN: [Honshu] 2 males, Aomori, Hirosaki-shi, Koguriyama, Inekari-sawa River (LT), 1.VIII.2013, D. Kato ( BLKU) ; 2 males, Aomori, Hirosaki-shi, Ichinowatari-Washinosu , 19.VII.2013, D. Kato ( BLKU) ; 2 males, Aomori, Nishimeya-mura, Kawaratai, Ôkawa Path , 30. VI.2013, D. Kato ( BLKU) ; 2 males, same data as previous except 6.VIII.2013 ; 1 males, same data as previous except 12.VII.2014 ; 1 male, same data as previous except 22.VII.2014 ; 1 male, Aomori, Towada-shi, Okuse, near Sarukura Spa , Alt. 850 m, 3.VIII.2015, D. Kato ( BLKU) ; 1 male, Yamaguchi, Iwakuni-shi, Nishiki-machi-Ôno, Mt. Shôjô-yama , Alt. 330 m, 24.VII.2016, D. Kato ( BLKU) ; [ Kyushu ] 1 male, Fukuoka, Fukuoka-shi, Sawara-ku, Itaya , Mt. Sefuri-san , Alt. 970 m, 27.VIII.2016, D. Kato ( BLKU) .

Short description. General coloration grey and dark brown ( Fig. 8A ). Head. Grey to greyish ocherous, with dark central stripe on vertex and lateral band on posterior part of vertex. Antenna about twice as long as head. Scape and pedicel dark brownish grey. Flagellum dusky yellow.

Thorax. Grey to greyish ocherous. Notum and pleuron mottled with dark brown spots and stripes. Wing ( Fig. 8B ) subhyaline, heavily patterned with numerous small spots in cells and large markings. Legs mainly yellow; each femur with dark band at tip, 4–5 times as long as wide. Halter pale yellow; knob dark brown.

Abdomen. Brown; pregenital segments weakly dark on posterior part of each segment. Male terminalia ( Figs 8C–G ) with outer gonostylus strongly narrowed on distal 1/4 into weakly curved claw-shaped lobe; inner concaved margin serrate; outer margin of outer gonostylus with subapical lobe; apical inner edge angulated at obtuse angle with rounded corner ( Fig. 8D ). Paramere with mesal-apical lobe flat finger-shaped, slightly wide on distal part, about three times as long as wide and slightly longer than lateral lobe ( Fig. 8G ). Aedeagus about six times as long as wide, curved posteroventrally at posterior end of lower shelf ( Fig. 8F ). Apodeme of vesica directed ventrally ( Fig. 8F ).

Measurements. Male (n = 12): body length: 3.7–4.3 mm; wing length: 4.5–5.5 mm.

Distribution. Japan (Honshu and Kyushu) ( Fig. 13D ).

Remarks. See remarks in E. enischnophallus , sp. nov. for comparison to similar species.

Figures

FIGURE 8. Eloeophila lilliputina (Alexander, 1936). A. habitus, lateral view; B. wing; C. male terminalia, dorsal view; D. outer gonostylus, ventral view; E. aedeagal complex, dorsal view; F. same, lateral view (left = dorsal); G. paramere, dorsal surface. Scale bars: A–B, 2 mm; C–G, 0.1 mm.

FIGURE 13. Distributions of Japanese species of Eloeophila. A. E. amamiana (red); E. apicisetula Kato, sp. nov. (blue); B. E. canidorsalis Kato, sp. nov. (red); E. dietziana (blue); C. E. enischnophallus Kato, sp. nov. (red); E. kintaro (blue); E. tergilobellus Kato, sp. nov. (green); D. E. hadrophallus Kato, sp. nov. (red); E. lilliputina (blue); E. persalsa (green); E. E. subaprilina (red); F. E. ussuriana iwatensis (red); E. verrucosa (blue).