Megalommum tibiale ( Ashmead, 1906 )

Cao, Liang-Ming, Achterberg, Cornelis Van, Tang, Yan-Long, Wang, Xiao-Yi & Yang, Zhong- Qi, 2020, Revision of parasitoids of Massicus raddei (Blessig & Solsky) (Coleoptera Cerambycidae) in China, with one new species and genus, Zootaxa 4881 (1), pp. 104-130 : 117

7. Megalommum tibiale ( Ashmead, 1906)

Figs 10 , 11

Curriea tibialis Watanabe, 1937: 15 .

Melanobracon tibialis Ashmead, 1906: 195 .

Atanycolus tibialis Fahringer, 1928: 579 .

Megalommum tibiale van Achterberg & Mehrnejad, 2011: 24 ; Yu et al., 2016.

Material examined. 16♀♀ 1♂, NE China, Liaoning Province, Kuandian County, Daxicha Forest , 14.VI.2008, N40°44′58″, E125°11′35″, 446 m altitude, Yang Zhong-Qi ; 4♀, id., but 30.VII.2011, cocoons in the beetle gallery; emerged 12.VIII.2011 N40°44′27″, E125°11′58″, 440 m altitude.

Hosts. Parasitoid of Massicus raddei (new record).

Distribution. China (Guangxi, Liaoning, Zhejiang), Japan.

Remarks. Megalommum tibiale is one of main parasitoids of M. raddei . Based on the material we collected, the ratio of female to male is 20:1, which is the highest observed among all the parasitoids in this study.

Figures

FIGURE 10. Megalommum tibiale (Ashmead), ♀ A Habitus, dorsal aspect, scale bar = 2.5 mm B Head, frontal aspect, scale bar = 0.35 mm C Head and mesosoma, dorsal aspect, scale bar = 1 mm D Head and mesosoma, lateral aspect, scale bar = 1 mm E Metasoma, dorsal aspect, scale bar = 1 mm.

FIGURE 11. Megalommum tibiale (Ashmead), ♀ A Fore right leg, scale bar = 1 mm B Middle right leg, scale bar = 1 mm C Hind right leg, scale bar = 1 mm D Fore wing, scale bar = 1.5 mm E Hind wing, scale bar = 1.5 mm.