Capture in "Forêt de Couloutre" (dépt. Nièvre) - 24 V 2012 ---------------- Biblio : - Berland 1947 : Faune de France ... Hymenoptera Tenthredoïdes - Enslin 1912/1918 : Die Tenthredinoidea Mitteleuropas - Haris 2000 : in “Folia Entomologica Hungarica, LXI - p.95/148" - Study on the Palaearctic Dolerus ... ====== Determination of Tribe Dolerinae, see :
http://www.entomologiitaliani.net/public/forum/phpBB3/viewtopic.php?f=370&t=21257&hilit=tenthredinidae - Being given the entirely black coloring of the insect, we can hesitate between Dolerus & Loderus palmatus. The distinction is made on the shape of the sawsheat (see drawing from Berland & photo) Thus, it is a Dolerus --- To determine the species we used 2 keys. At first with Berland’s key [verified with Enslin’s key] : - Body entirely black (included Antennae). - Sawsheat dorsally not widened apically. - Posterior furrow of the median lobe of Mesonotum forming an angle lower than 90°. Then with Haris’s key : - The distance between the tips of the longest Hairs is bigger than the dorsal width of the Sawsheat and these Hairs are not apically curved.
[For Dolerinae, the shape of the Sawsheat and especially the form of its hairs are very often specific criteria] - Clypeus deeply emarginated (almost to a depth of half of its total length).
Where from my determination ===== The species was captured in numerous European countries, but according to Haris it is sporadic.
Allegati: |

|
|