Forum Entomologi Italiani
http://www.entomologiitaliani.net/public/forum/phpBB3/

Dolerus fumosus Stephens 1835 ♀ - Tenthredinidae - Dolerinae
http://www.entomologiitaliani.net/public/forum/phpBB3/viewtopic.php?f=375&t=64070
Pagina 1 di 1

Autore:  D & JP Balmer [ 12/09/2015, 3:29 ]
Oggetto del messaggio:  Dolerus fumosus Stephens 1835 ♀ - Tenthredinidae - Dolerinae

Capture in Cne : Le-Grand-Abergement (South of Dépt.of Ain, at an altitude of 895 m) - 06 VI 1992
======
Biblio (main) :
- Haris 2000 : in “Folia Entomologica Hungarica, LXI - p.95/148", Study on the Palaearctic Dolerus ...
- Lacourt 1999 : in “Bull. Sté Ent. de France.- 92(7-8) - p.231/239", Description ... Dolerus …
-----------
* Determination of sub-Family Dolerinae, see :
Our capture has the Tegulae & the Legs entirely black.
Thus, it is a Dolerus
------
* Determination of species
    Characteristics of our capture :
      Body entirely black, except the Cenchri.
      Antennae with segment 3 longer than segment 4 (see photo).
      Sawsheat not widened to the apex.
      The longest hairs of the Sawsheat are curved (curvature not null) on everything their length.
      The angle α formed by the 2 tangents to the longest hairs of the Sawsheat (see photo) is obtuse.

Only 2 European species may have these characteristics or be confused, namely : fumosus & megapterus.
Sawsheat of megapterus (as the drawing from Haris) : All the hairs are curved and the distance between the apex of the longest hairs is short.
These 2 characteristics are not the ones of our capture, thus this one is the species fumosus (Was not captured in Italy)
[According to Haris this species is sporadic in Europe, and it seems that the south of Dépt. of Ain is the south limit of this species in Europe]

Allegati:
n° 2470 F - Images - Image légendée.jpg


Pagina 1 di 1 Tutti gli orari sono UTC + 1 ora [ ora legale ]
Powered by phpBB® Forum Software © phpBB Group
http://www.phpbb.com/