Macrosiagon pusilla (Gerstaecker, 1855)

Batelka, Jan & Hoehn, Patrick, 2007, Report on the host associations of the genus Macrosiagon (Coleoptera: Ripiphoridae) in Sulawesi (Indonesia), Acta Entomologica Musei Nationalis Pragae 47, pp. 143-152 : 148

Macrosiagon pusilla (Gerstaecker, 1855)

Material examined. Host species Auplopus sp. ( Pompilidae :Auplopodini): July, F3U4, 1, 10; Dec, E2U8, 1, 424 ( PHCG, IPBC; host species PHCG).

Observations. We found one individual of M. pusilla in each of two nests of Auplopus sp. , with on average four cells per nest.

Remarks. Auplopus sp. is a new host record for this species. The family Pompilidae is recorded as a host group for the genus Macrosiagon for the first time.

Distribution. Macrosiagon pusilla is widely distributed in the Palaearctic and Oriental Regions: China (Fujian, Guandong, Hebei, Hunan, Sichuan, Xizang, Yunnan), India (Assam, ‘Bengale: Barway’, Meghalaya, Uttaranchal), Indonesia (Sumatra), Japan (Hokkaidō, Honshū, Shikoku), Korean Peninsula (including Cheju Do Island), Laos, Malaysia, Nepal, Russia (Far East), Thailand, and Vietnam ( BATELKA 2007). This represents the first record from Sulawesi.