Macrocera abdominalis Okada 1937

Macrocera abdominalis Okada 1937 View in CoL

Figs. 5–6 View FIGURE 5 View FIGURE 6 , 9a View FIGURE 9

Material examined. One male ( SNUE), Yongdae Recreational Forest , Inje-gun, Gangwon-do, South Korea (38°14'33.0"N, 128°20'11.3"E; Fig. 1 View FIGURE 1 ), dry pinned, terminalia cleared and mounted on slide. Collected during May 16 to June 22, 2023, by Woo Jun Bang, Sangjin Han, and Jonghwan Choi using Malaise trap GoogleMaps . One female ( SNUE), Odaesan Mountain , Pyeongchang-gun, Gangwon-do, South Korea (37°47'24.0"N, 128°33'52.7"E; Fig. 1 View FIGURE 1 ). Collected during July 12 to August 4, 2022, by Woo Jun Bang, Sangjin Han, and Jonghwan Choi using Malaise trap GoogleMaps .

Comments. Preservation quality of the specimens was not very good, but following characters made the identification possible: spotted patterns on the abdomen of male both on the dorsal ( Fig. 5a View FIGURE 5 ) and ventral ( Fig. 5b View FIGURE 5 ) sides, uniformly reddish-yellow colored mesonotum ( Fig. 9a View FIGURE 9 ), antennae very long in male being almost three times the body length ( Fig. 5a View FIGURE 5 ), and a wing pattern ( Fig. 6a View FIGURE 6 ) matching that of the figures by Okada (1937, 1939b). Abdominal spots are much thickened in the female, forming almost a striped pattern, which also matches the Okada’s (1937) description ( Fig. 5c View FIGURE 5 ). This species is somewhat similar to M. interrupta including the structure of male terminalia, which have been figured for the first time in the current study ( Figs. 6b–d View FIGURE 6 ). However, some distinctive features can separate these two species as mentioned for M. interrupta , which is also supported by our NJ tree analysis ( Fig. 10 View FIGURE 10 ). This species was only known from Japan ( Okada 1937, 1938a 1938b, 1939a, 1939b, Sasakawa 2005) and Far East Russia (Southern Kuril Islands; Okada 1937) so far.

DNA Sequences. Partial COI gene of both specimens sequenced: female (Accession: PV300948) and male (Accession: PV300949).