156 



The Longicorn, Thy est es gebleri, has one annual generation ; it 

 winters in the larval state, pupates in all probability in May and 

 appears as an adult in June. The eggs are laid in the hemp stalk, 

 usually 5 inches below the first joint, one or occasionally two being 

 deposited in each. The larva gradually descends the stalk as it 

 matures, eating out the interior as it goes and making an aperture 

 from 5 to 8 inches from the ground through which the excrement is 

 ejected. The best remedial measure is the burning of infested stalks. 



Weiss (H. B.) & Dickerson (E. L.). The European Mole Cricket, 

 Gryllotalpa gryllotalpa, L., an Introduced Insect Pest. — Jl. New 

 York Entom. Soc, Lancaster, Pa., xxvi. no. 1, March 1918, 

 pp. 18-23, 1 plate. 



The European mole-cricket, Gryllotalpa gryllotalpa, was first observed 

 in America in New Jersey, where it had evidently been introduced 

 with imported nursery stock. Though probably only slightly 

 vegetarian it does much damage to root crops, and though it may 

 prey on underground insects, the damage done in fields and orchards 

 outweighs its beneficial action. 



Its control has been attempted by the use of poisoned baits containing 

 arsenic or phosphorus placed in the burrows or scattered on the 

 ground before seeding time ; by injecting into the burrows some 

 substance such as naphtha, petroleum, a 25 per cent, emulsion of 

 petroleum, soapy water or calcium carbide from which acetylene gas 

 is liberated by the action of the moisture present ; by trapping the 

 insects by means of a pot sunk into the soil and covered with a board, 

 or by means of holes filled with manure or vessels filled with water 

 placed in the soil ; by placing substances such as lime on the surface 

 at the rate of 16 cwt. to the acre, or by the introduction of naphthaline 

 into the soil as it is being tilled ; and by destroying the nests of the 

 insects. 



NicoLAY (A. S.) & Weiss (H. B.). A Review of the Genus Buprestis 

 in North America. — Jl. New York Entom. Soc, Lancaster, Pa., 

 xxvi, no. 2, June 1918, pp. 75-109, 1 plate, 2 figs.f,^ 



The larvae of the Buprestidae are miners in the tissue of dead, 

 dying and living plants and are of two general types, the bark- and 

 wood-borers, and the leaf-miners. Eggs are deposited singly during 

 the spring and summer in crevices in the bark, or under the bark at 

 the edge of a wound, and the larva mines until the following or second 

 autumn, when it pupates and transforms to the adult. The insect 

 hibernates in the larval, pupal or adult stage and in nearly all cases 

 the adult emerges the following spring or summer. The adult beetles 

 usually feed on the foliage, sometimes, but not necessarily, on that of 

 the larval host. 



A key is given to the 24 species here dealt with, including : — 

 B. aurulenta, L., breeding in Douglas fir, various pines and western 

 red cedar {Thuja plicata) ; B. adjecta, Lee, a local species breeding in 

 pines ; B. sulcicollis, Lee, in white and pitch pine ; B. striata, ¥., 

 in Pinus strobus, P. rigida and probably all southern yellow pines ; 

 B. apricans, Hbst. ; B. decora, F. ; B. Salisbury ensis, Hbst., in Pinus 

 rigida ; B. maculiventris, Say, in balsam and spruce ; B. maculipennis, 



