Subfamilia: SPONDYLIDINAE / Tribus: ASEMINI
[Photo © Kirill V. Makarov, click on the picture for 4K resolution]
Asemum punctulatum, a species occuring in Russian Far East, NE China, Japan and Korea, has been described from Far East by Constantin Blessig in 1872 [▽]. Larvae of A. punctulatum develop in standing trunks of dying or dead conifers (Pinus is preferred). Before the first overwintering larvae feed subcortically, the following spring enter the sapwood and create longitudinal or transversal galleries filled by fine frass. After the second overwintering larvae bore pupal cells at end of galleries along or across the trunk. Pupation in late spring, life-cycle 2 years. Adults, active from June to August, are crepuscular / nocturnal [✧][❖].
Body length: ♂♂ 7.5 - 13.7 mm / ♀♀ 11.5 - 15.0 mm Life cycle: 2 years Adults in: June - August Host plant: polyphagous in coniferous trees (prefers Pinus koreana, but also in Abies, Picea) Distribution: Russian Far East, NE China, Japan and Korea
The depicted mounted beetles were collected: ♂ in the right side of the Severyanka (Северянка) river valley (N44°20′18″ E146°00′42″; 20-40 m a.s.l., Kurils Nature Reserve, Kunashir/Кунаши́р island, Kuril Islands, Yuzhno-Kurilsky district, Sakhalin region, Russia) on July 28, 2013; ♀ in the nameless creek valley 1 km S of abandoned settlement Zastava Dokuchayeva (Застава Докучаева) (N44°30′13″ E146°09′27″; 100 m a.s.l., Kurils Nature Reserve, Kunashir/Кунаши́р island, Kuril Islands, Yuzhno-Kurilsky district, Sakhalin region, Russia) on August 5, 2013.Collected by Kirill V. Makarov
[▽]
Blessig C.:
Zur Kenntniss der Käferfauna Süd-Ost-Sibiriens insbesondere des Amur-Landes. Longicornia.
Horae Societatis Entomologicae Rossicae, St. Petersbourg 9 (2): 161-192, 1872. [download]
[✧]
Cherepanov A.I.:
Cerambycidae of Northern Asia, Volume 1 - Prioninae, Disteniinae, Lepturinae, Aseminae.
Amerind Publishing, New Delhi: 304pp [pages 593-598], 1988. [download[❖]
Danilevsky M.L.:
Longicorn beetles (Coleoptera, Cerambycoidea) of Russia and adjacent countries. Part 1.
Higher School Consulting, Moscow, 550pp [page 373], 2014. [download
| Subfamilia | Spondylidinae Audinet-Serville, 1832 |
| Tribus | Asemini Thomson, 1860 |
| Genus | Asemum Eschscholtz, 1830 |
| Species | Asemum punctulatum Blessig, 1872 |