Community and Forum → Insects images → Small ground beetles (Carabidae) of various genera (Bembidion, Microlestes, etc.)
PG18, 07.11.2008 12:03
RATTER'S BIG EYE
Notiophilus reitteri Spath, 1899
A small beetle (4.5—6 mm), with a broad head bearing large, bulging eyes. The color is bronze-black, shiny. Each of the wings has 8 dotted grooves (the gap between them is very wide second from the seam) and an extensive longitudinal rust-red field, which distinguishes this species from 6 other big-eyes known from the Middle Urals. It is distributed in the taiga belt from the Komi Republic to the Far East. It is found under the canopy of dark coniferous forests. Adult beetles and larvae of big-eyes feed on small insects, especially legtails. Imagos are active during the day. They are very agile and sharp-eyed. Larvae find prey using special tactile receptors. The development cycle is probably two years.
ZETTERSTEDT'S TRACHYPACHUS
Trachypachus zetterstedti (Gyllenhal, 1827)
Well, in fact, this is not even a ground beetle, but the only representative of the ancient family Trachypachidae in Russia, which flourished in the time of the dinosaurs and has almost not been preserved to this day. In the world's fauna, only 6 species are known belonging to two genera: Trachypachus (with three species from North America and one from the Eurasian forest zone) and Systolosoma (with two species from Chile).
Body length 4-5 mm. The color is black, dark bronze, less often purplish-brown. Elytra with longitudinal rows of dots, smoothed out on the sides and at the apex. Pronotum with pits at the posterior corners connected by a transverse groove. Eurasian forest species. It occurs infrequently, in various coniferous, more often pine, forests. Adults and larvae prey on small ground invertebrates. It is named after Professor of entomology Johann Wilhelm Zetterstedt (1785-1864), who taught at Lund University in Sweden.
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