AND HABITS OF DIAXENES DENDROBII, GAHAN. it 
bulb ; this will spread over the whole. The enclosed 
grub must be cut out, or, if the pseudo-bulb is far 
gone, let it be cut off bodily and the whole destroyed. 
RIRI TAMDA PHY. 
Woodward, in Gardeners’ Chronicle, 1883, mentions receipt of a larva 
taken from an orchid. It was dead and could not be identified, but I am 
satisfied the insect was a species of Diarenes. 
Gahan, C. J. Description of a new longicorn beetle of the genus 
Diaxenes, in Ann. Mag. Nat. Hist., Ser. 6, xiii (1894), p. 520. 
Donge, E. Exhibited a larva ae imago of the insect taken from the 
conservatory of a horticulturist in Paris. See Ann. ae Entom. France, 
Ixiii (1894), also, Bull. Soc. Entom. France, 1895, 
Xamben, Capt. Supplies notes on larval habits eee upon metamorphosis 
in Ann. Soc. Entom. France, lxiv (1895), also in Bull. Soc. Entom. France, 
1895, p. ccxlix. 
EXPLANATION OF THE FIGURES 
in Plates I. and II. 
Illustrating Dr. Stewart Macdougall’s paper on Diaxenes dendrobtt, Gahan. 
Fig. 1.—Imago from life. Natural size. 
» 2.—Egg from side. Greatly magnified. 
» 3-—End view of egg-shell, showing characteristic areolation. Greatly 
nified. 
» 4.—Full-grown larva. Slightly magnified. 
» 5.—Pupa removed from cocoon, ventral surface. Twice natural size. 
»» 6.—Pupa removed from cocoon, dorsal surface. Twice natural size. 
» 7.—Pseudo-bulb of Dendrobium with larva (not full grown) that has 
been mining, as shown by the dark discoloured tissue. Natural 
size. 
8.—Cocoon enclosing larva, in hollowed-out pseudo-bulb of Coelogyne 
cristata. Natural size. 
» 9—Cocoon showing escape-hole, in pseudo-bulb of Dendrobium. 
Slightly reduce 
» 10.—Three beetles seen on plant of Dendrobium cariniferum. Slightly 
reduced. 
» 11.—Adult beetle on Dendrobium cariniferum. Magnified. 
»» 12.—Under-surface of ag of Lelia anceps gnawed by imago. Two- 
thirds natural si 
” 13.—Coelogyne aides ete leaves characteristically injured by 
imago. Half natural size. 
14.—Cattleya, —- pseudo-bulbs and roots gnawed by imago. 
Natural s 
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