Oedemeridae

A good bug. I have one from Ivanovo, also in the light.

yes, they can only be collected in the light. Just find it - rare luck

I caught it in the light only 2 times in single copies, but in one place. I've heard somewhere or read that it can be used on coniferous trees (pine wood) find more?

I've heard somewhere or read that it can be used on coniferous trees (pine wood) find more?

I collected it once a long time ago in a dead fir tree. The beetles were in the center of the trunk at ground level.
On light as something doin times flew.

Collected several times on dead pine trunks or near them in the vicinity of Tyumen. And all in May.

And mine arrived in Ivanovo for the light in April.

End of April in my case.

I confirm the words of my Tyumen colleague - in May on the pines. True, I found a couple of pieces on a live pine tree, a young teenager.

The beetle is very common, but because of the secrecy of its habitat, it is considered rare by many.
I caught it right in Yaroslavl (in the district of private development) in the light (late April-early May) and collected it in series at the very beginning of May under the lagging bark of dead pines and firs... Once, in early summer, I found larvae in a fir tree, dragged it to the balcony , and by autumn I cut down the metamorphosed beetles from the dead wood.

In South Primorye, it is quite common in broad-leaved and mixed forests. Narrow wing with non-narrow elytra.
Ditylus laevis (Fabr., 1787) – G. Lafer det.
Male 20 mm, female 21 mm.
8 km NW station Floodplain, Khasansky district, Y. Primorye, 12. VI. 2007. S. Ivanov leg.
Male 20 mm, female 21 mm.
8 km NW Poima st., Khasansky dist., S. Primorye, Far East of Russia, 12.VI.2007. S. Ivanov leg.

Ditylus laevis is a very rare beetle in Yaro (as well as in the center of Russia). For 20 years, we (Elizar, Anthrenus, Dmitrich) collected two beetles. One in the swamp, the second on a pile of dead alders, pritaranennoy schoolchildren for a fire (in the valley of a small river...) .

Ditylus laevis is a very rare beetle in Yaro (as well as in the center of Russia). For 20 years, we (Elizar, Anthrenus, Dmitrich) collected two beetles. One in the swamp, the other on a pile of dead alders, pritaranennoy schoolchildren for a fire (in the valley of a small river...).

In the Penza region, the species was found in 2006 and 2007 in the vicinity of the Shalkeev cordon on fords with washed logs across the Belaya, Medayevka, and Zhurchalka rivers. There is a very peculiar biotope, according to the description of botanists, "the release of the southern taiga" due to the relief - deep river valleys between heights with pine forest, a difference of 150m. The climate is much colder than in the region, the delay in plant phenology is 1.5-2 weeks later than usual. Imagos do not seem to live long, because in 2009 they arrived a week later and not a single beetle (I climbed all the streams and fords), and earlier I saw about 10.

At one time, I had a barrel of water in my garden under a lilac bush, so during the flowering of Calopus serraticornis they regularly arranged drownings in this barrel at night, during the night 2-3 pieces at least satisfied their suicidal inclinations

At one time, I had a barrel of water in my garden under a lilac bush, so during the flowering of Calopus serraticornis they regularly arranged drownings in this barrel at night, during the night 2-3 pieces at least satisfied their suicidal tendencies

Well, it was just the right time for them to die...

On the distribution of rare species in Belarus, and more specifically in the Belarusian Lake district. Where there is no author , these are my fees. A piece from the forthcoming monograph on all beetles.
Род Calopus Fabricius, 1775
Calopus serraticornis (Linnaeus, 1758) (= Calopus pretneri G.Mueller, 1929). [Solodovnikov, 1999a]. Doc., Ush., Gor., Vit. It is rare and local. It is most often found in spring on various old wooden posts, under the bark of pine trees, and occasionally comes to light. The larvae develop in the rotten wood of coniferous tree species. Dokshitsky district, okr. d. Polyane, on the fence, 20.04.2000 (I. I. Shimko), 1 male. Ushachsky district, D. B. Doltsy district, mixed forest, on the trunk of a spruce tree, 25.04.1992, 1 female. Gorodoksky district, Gorodok, on light, 2.05.2008 (A. Derzhinsky), 1 female. Vitebsk district, 4 km from Vitebsk, Luchesa River bank, pine forest, under the bark of a pine tree, 4.02.1987, 1 female; Vitebsk, in a private wooden house, 13.04.1990, 1 male; Lettsy village district, 13 km from Vitebsk, mixed pine forest, under the bark of a pine tree, 13.04.1991, 3 females; village of Krajevo, 25 km From Vitebsk, suburban areas, on the light, 11.05.2003 (E. A. Derzhinsky), 1 female.

Род Ditylus Fischer von Waldheim, 1817
Ditylus laevis (Fabricius, 1787) (= Ditylus helopioides Fischer von Waldheim, 1817; Mirmetes unicolor Eschscholtz, 1818). [Lopatin, 1991; Solodovnikov, 1999a; Solodovnikov and Kotsur, 2005]. Lep., Sept., Gor., Li.is rare and local. It is found in untouched primary forests of various types. Larvae develop in the rotten wood of coniferous tree species, mainly in lowland swamps. The generation is biannual. New finds: Lepel district, BBGZ, mixed forest, 31.05.1988, 1 copy. Senensky district, Shchitovka village, pine forest, 17.06.2002, 1 copy; Ordyshovka river valley, sandy stream bank, small-leaved mixed forest with maple admixture, 30.05.2008, 1 copy. Lioznensky district, transition D. Solovyovo-D. Ryzhiki, 43 km SE of Vitebsk, broad-leaved forest on the right. on the bank of the Luchesa River along the tributary valley, 20.06.2005, 1 copy, 27.05-16.06.2009, 1 copy; Osipenki village, 40 km SE of Vitebsk, mixed forest, 9.06.2005, 1 copy, 24.06.2005, 1 copy; Stepanenki village, 38 km SE of Vitebsk, mixed forest, 15.06.2006, 1 copy. Gorodoksky district, 8 km west of the lake Yezerishche, near the lake. Issa, ber. r. Cheruya, in leaf litter, 2.05.1999 (I. I. Shimko), 2 copies; okr. d. Verechye, ber. r. Oatmeal, gray sandstone, under a log, 5.06.2009 (O. V. Belyavsky), 1 copy. It is proposed to include this species in the list of protected insects of the Republic of Belarus. 2.05 – 24.06.

D. laevis F. It is included in the CC of the Leningrad Region, and we also want to include it in our CC (see above Shibaev S. V.). Even with Seryoga, we wrote a preliminary essay on it in " Maintaining the CC of the Penza Region (2008)". As far as I remember, this boreal species was previously unknown in the Volga region...