Forest entomology . for the possession of the females. These insects fly during the evening, and rest on the stem, sipping at any juicy portion they can find. Fig. 43 represents the male and female insects. It is in the larval stage that this speciesis most injurious to timber trees, more especi-ally oak and ash (though hornbeam is con-spicuously mentioned by Kaltenbach,x andalder and beech by Altum2). The larva iswhite, with ferruginous head, nearly cylin-drical, and of a soft fleshy consistence. Itis said that they live for six years as larvae,during which time they gnaw into the rootsand ea
Forest entomology . for the possession of the females. These insects fly during the evening, and rest on the stem, sipping at any juicy portion they can find. Fig. 43 represents the male and female insects. It is in the larval stage that this speciesis most injurious to timber trees, more especi-ally oak and ash (though hornbeam is con-spicuously mentioned by Kaltenbach,x andalder and beech by Altum2). The larva iswhite, with ferruginous head, nearly cylin-drical, and of a soft fleshy consistence. Itis said that they live for six years as larvae,during which time they gnaw into the rootsand eat the solid wood. In fig. 44 a pieceof ash timber tunnelled by the larva ofrepresented. Dokcus parallelopipedus (Linn.) To the beginner in entomology this species is suggestive of a smallspecimen of the female stag-beetle. At least, this was my incipientfeelings when I first discovered this species under decayed bark inGloucestershire several years ago. The larvae live in old decayingbeech and several other Fig. 44.—Portion of ashtimber injured by larvaof stag-beetle. the stag-beetle is SlNODENDRON CYLINDRICUM (Fabr.) This is another beetle which may be found in decaying wood. Ihave reared the beetle artificially, taken from decayed wood andfed on damp sawdust. I have also tracked the perfect insects by 1 Die Pflanzenfeinde aus der Klasse der Insekten, p. 638. 2 Forstzoologie, vol. iii. p. 120. 3 Commander J. J. Walker, , informs me that he has seen several very largeash-trees in Cobham Park, Kent, completely destroyed by Dorcusparallelopipedus. 44 FOREST ENTOMOLOGY. following up the frass at the bottom of a decayed standing tree,which betrayed the presence of males and females. My first dis-covery of this sort was in Acklington, Northumberland, July 3, E. S. Bagnall pointed out to me that the sickly beech and hollytrees in Gibside, Co. Durham, were very much injured by this beetle is shining black, about half an inch long. The malehas a consp
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