Species group of Phymatocera fumipennis

Description. Genal orbit without pit (Figs 8C, 9A). Malar space facing almost laterally (Fig. 9C), 0.3–0.8 × as broad as median ocellus width. Antenna with length 1.8–2.4 × head width in female, 2.1–3.2 × in male (Figs 17A, C, 18A, C, D); flagellum with setae short and uniform in length, as long as or shorter than 1/2 middle width of flagellomere 1 in dorsal view in female and male (Fig. 9E, F, I, J); flagellomere 2 dorsal length 0.7–1.1 × flagellomere 1 dorsal length in female (Fig. 10E, G), 0.9–1.2 × in male (Fig. 10F, H). Mesoscutellar appendage 0.23–0.29 × as long as mesoscutellum (Figs 2A, 17E). Hind tarsus with length of plantar lobe of tarsomere 1 about 0.3 × distance between plantar lobes of tarsomeres 1 and 2 in female and male. Tarsal claws with inner tooth large or small (Figs 17F, G, 18E, F; figs 260, 261 in Goulet 1992). Dorsal membranous area of abdominal segment 1 bell shaped or almost triangular, with middle width about 0.4–1.0 × length (Figs 17E, 18G; fig. 273 in Goulet 1992).

Remarks. No apomorphic characters have been found to suggest the monophyly of this group. Goulet (1981) considered an asymmetrical expansion of the apex of a pedicel to be a synapomorphy in Nearctic Phymatocera species, all of which belong to the P. fumipennis group. However, this character is found in P. aterrima group (compare Fig. 9E, F, I, J with Fig. 9G, H, K, L).

Species included. This species group includes five Nearctic species (see Smith 1969, Goulet 1981) and the following two East Palearctic species: P. fuscata (Togashi, 1984) comb. nov. from Japan (Honshu); P. peregrinator (Malaise, 1931) comb. nov. from Japan (Hokkaido, Honshu) and Russia (Kamchatka).