Beschrijving

en: This 4-5cm long larva was crawling around on the ground near rest area "Lucasgat" on the dutch A1 motorway in an area that has lots of oak and pine-like trees (and maybe some birch too). It rolled up when the camera came too close and clutched a little twig. I ripped the twig out of the ground and photgraphed the head upclose from the bottom (protected side) (see other picture). As I know nothing about these critters I looked and asked around and it seems this would be the larva of a Birch Sawfly (Cimbex femoratus).

Update: According to Doc Taxon it is a Cimbex femoratus larva. Doc Taxon states that for other species with very similar larva (Cimbex lutea and Cimbex fagi) the "warts" would be smaller and more cone-shaped as oposed to the larger and more "Zuckerhut"-shaped warts on the C. femortaus. The German word "Zuckerhut" refers to a suger cone with fairly steep sides and a clearly rounded tip used in the preparation of Feuerzangenbowle. See Wikipedia:English or German.

As a reference for this the following book is quoted: H. Lorenz & M. Kraus: Die Larvalsystematik der Blattwespen, Tenthredinoidea und Megalodontoidea. in Nr. 1 Abhandlungen zur Larvalsystematik der Insekten. Akademie-Verlag, Berlin 1957.

Please feel free to edit this page and add more identification info or other comments!

BeschrijvingGroene rups 4-5cm.jpg	English: Birch Sawfly Larva (Cimbex femoratus) - walking on the ground (fell from tree?). Location: Motorway rest area "Lucasgat" near Apeldoorn, Netherlands. Keywords: wildlife, nature, insect, symphyta, woods, woodland, birch, sawfly, summer, green, larvae, caterpillar, grub. Nederlands: Larve van een Berkenknotssprietbladwesp of kortweg Berkenknopwesp (Cimbex femoratus) - lopend op de grond (uit boom gevallen?). Locatie: Parkeerplaats "Lucasgat" langs A1 (NL) Trefwoorden: larve, berk, wesp, rups, groen Deutsch: Larve der Grosse Birkenknopfhornblattwespe - spaziert auf dem Bodem herum (aus Baum gefallen?).
Datum	29 juli 2006
Bron	Eigen werk
Auteur	Pudding4brains
Toestemming (Hergebruik van dit bestand)	Public domainPublic domainfalsefalse Ik, de auteursrechthebbende van dit werk, geef dit werk vrij in het publieke domein. Dit is wereldwijd van toepassing. In sommige landen is dit wettelijk niet mogelijk; in die gevallen geldt: Ik sta iedereen toe dit werk voor eender welk doel te gebruiken, zonder enige voorwaarden, tenzij zulke voorwaarden door de wet worden voorgeschreven.