Forest entomology . Fig. 176.—Foliage of larch ii\larvce o/Nematus Erichsonii. -Xematus Erichsonii. saw-fly measures up to § inch, or a little over, in length, and in spreadof wings just less than an inch (see fig. 177). The ground colour isblack. The head and thorax are black ; the first joint of the abdo-men is black; then follow joints coloured red, the end of the abdomenagain being black. The mouth parts, the two front pair of legs, ex-cept at the part next to the thorax, and the upper parts of the femoraof the hind legs, are reddisli or reddish-yellow. The tibia? are yellow-ish or pale in
Forest entomology . Fig. 176.—Foliage of larch ii\larvce o/Nematus Erichsonii. -Xematus Erichsonii. saw-fly measures up to § inch, or a little over, in length, and in spreadof wings just less than an inch (see fig. 177). The ground colour isblack. The head and thorax are black ; the first joint of the abdo-men is black; then follow joints coloured red, the end of the abdomenagain being black. The mouth parts, the two front pair of legs, ex-cept at the part next to the thorax, and the upper parts of the femoraof the hind legs, are reddisli or reddish-yellow. The tibia? are yellow-ish or pale in the upper parts. The antennas are nine-jointed andsomewhat thick, and taper towards the apex. With a lens the headand thorax are seen to be sparsely and finely pubescent, and the thoraxis markedly punctured. The wings are glossy, and slightly cloudedbelow the sticrma. FOREST ENTOMOLOGY.
Size: 1249px × 2001px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisheredinburghwblackwoo
