Actinoptera reticulata Ito, 1984

Han, Ho-Yeon, 2019, Ten species of the subfamily Tephritinae (Insecta: Diptera: Tephritidae) newly recorded in Korea, Journal of Species Research 8 (3), pp. 294-312 : 296-297

2. Actinoptera reticulata Ito, 1984

ƎḆḏẹḤŭẖṻƞ (ṵḍ) ( Fig. 1D, E )

Actinoptera reticulata Ito, 1984: 239 (type locality - Japan, Honshu, Settu, Yodogawa-Amanogawa; holotype ♂, UOPJ); Wang, 1998: 250, 251 (in East Asian Actinoptera key; diagnosis and distribution); Norrbom et al., 1999: 74 (in world catalog); Korneyev and Ovchinnikova, 2004: 554 (in Russian Far East key).

Actinoptera reticulata Ito, 1956: 25 (Nomen nudum. Published after 1930 without a description).

Diagnosis. This is a relatively small tephritid fly having a single dark antero-subapical wing marking with rays as in Trupanea species ( Figs. 1 vs. 9). Both Korean Actinoptera species can be readily distinguished from any other Korean tephritids by having 1) single pair of orbital setae; 2) extremely short wing pterostigma ( Fig. 1 D-a); and 3) lacking apical scutellar seta ( Fig. 1E ). In Korea, this species can be further distinguished from A. montana , by having wing cell c with single narrow grey median spot ( Fig. 1 D-b) and cell br with two narrow grey median spots ( Fig. 1 D-c).

Description of Korean material. Wing length 3.3-3.6 mm; all setae and setulae pale yellow to white. Head yellowish brown with small normal shaped mouthparts; genal seta white, strong; 2 frontal and 1 orbital setae; ocellar seta stronger than frontal setae. Thorax looks matte whitish grey due to dark brown ground col- or covered with heavy whitish grey pruinosity; grey anterior notopleural seta strong; white and thick posterior notopleural seta about half as long as anterior one; grey upper anepisternal seta strong; white and thick lower anepisternal seta about 1/3 as long as upper one; katepisternal seta strong, pale grey; anepimeral seta strong, pale grey; scutellum only with pair of grey, strong basal setae. Legs yellowish brown; fore femur with 5-6 pale yellow postero-ventral setae; mid coxal seta strong, white. Wing with single large star-shaped dark brown marking antero-subapically; basal 2/3 of wing faintly reticulated as follows - cell br with four narrow bands, cell dm with 3 narrow bands, cell cu 2 with 3 narrow bands, anal cell with small spot in middle; cell r 1 apical to pterostigma with narrow longitudinal dark band at basal 1/3 and dark area at apical half with round hyaline spot in middle; apical half of cell r 2 + 3 dark with round hyaline spot at apex of vein R 2 + 3 and much larger round spot subapically; crossvein R-M faintly banded; cell r 4+ 5 basally with large round hyaline spot, middle 2/5 dark brown, apical 2/5 lying Y-banded across apices of veins R 2 + 3 and R 4+ 5; cell m with 3 longitudinal rays from dark area of cell r 4+ 5. Abdomen matte light grey; oviscape shiny black, equal to or slightly longer than abdominal tergites 4-6.

Material examined. KOREA: Jeju-do: along Rt. 1131 across Sinraecheon, 25.VI.2003, H.-Y. Han et al., 1♂; Jeju-si, Jeolmul Recreational Forest , 25.VI.2003, Han et al., 2♂, 2$. All deposited in YSUW .

Distribution. Korea, Japan (Honshu, Sikoku, Kyushu), China (Fujian, Yunnan), Nepal.

Biology. Unknown.

Remarks. I have collected this species only in Jeju Island, which is the southern-most province in South Korea. Looking at the distribution data, this species seems to inhabit mild temperate and subtropical areas of Far East Asia. The new Korean name of this species translates as “reticulate Actinoptera ” referring to its scientific name.

Figures

Fig. 1. A-C. Actinoptera montana (Meijere, 1924). A. male, lateral view; B. male, dorsal view; C. male head. D, E. Actinoptera reticulata Ito, 1984. D. male, lateral view; E. male, dorsal view.