208 



BoGOYAVLENSKAiA (M. Gr.). Mehnotus brunnipes, Germ., pp. 25-28, 

 3 figs. 



The author describes some observ^ations made in the laboratory on 

 eggs and larvae of this insect. The larvae fed preferably on carrots, 

 and also on beet and potatoes. 



BoGOYAVLENSKY (S. G.). Bibio marci, L. and B. hortidanus, L., 

 pp. 28-37, 4 figs. 



B. marci was on the wing during the first half of May. at the end of 

 which period only males were present, the females having evidently 

 entered the earth to oviposit. B. hortulanus was on the wing during 

 the whole of June, both sexes being present during the whole time. 

 Both species oviposit in the soil in heaps, the females usually perishing 

 after that process ; 1,405 eggs were counted in one heap laid by 

 B. Iiortulanus. 



KosTiNSKY (V. M.). Pyrausta nuhilalis, Hb., pp. 37-44, 6 figs. 



This insect has done great damage to maize on one estate. The 

 caterpillars were infested with Hymenopterous and Dipterous 

 parasites, and were found during May and the first half of 

 June ; the pupal stage lasted from 12 to 16 days, the first imago 

 appearing on 18th-21st June. Observations in the laboratory 

 on the imago have shown that each female may lay 500-600 eggs ; 

 the egg-stage lasted five or six days, and the whole cycle from egg to 

 imago 50-57 days. A second generation may occur which oviposits 

 in August and produces caterpillars in the same month. No eggs 

 laid in August were found in nature. 



BoGOYAVLENSKAiA (M. G.). Haltica oleracea, pp. 44-49, 4 figs. 



During the author's observations on this insect in 1914 [see this 

 Revieiv, Ser. A, iii, p. 538] no males were found ; in 1915 out of 600 

 specimens only four were males. The collections of D. A. Ogloblin in 

 the government of Poltava showed even a smaller percentage of males 

 (1 in 360). This beetle has two, sometimes three generations in one 

 summer ; the adults of the first generation are present in May and 

 those of the second in July. To the food -plants given in the last report, 

 must be added Glycyrrhiza glabra, according to N. Sacharov, and 

 Cirsium sp., according to A. Goriainov ; cabbage again proved not to 

 be a food-plant of this insect. 



Peeessypkin (P.). riepeflBMmHbie neiynie oipflAbi no 6opb6t ci. 

 BpeflMTenflMM CaflOBl*. [Travelhng detachments for the control 

 of pests of crchards.]— « riporpecCMBHOe CaAOBOflCTBO M OfO- 



pOAHMMeCTBO.» [Progressive Horticulture and Market-Gardening], 

 Petrograd, no. 10, 19th March 1916, pp. 289-292. 



The Zemstvo of Voronezh organised in 1912 and 1913 detachments 

 of travelling instructors, each consisting of three men, to travel 

 about and instruct the population by practical demonstrations in 

 methods of plant cultivation, pest control, etc. The organisation 

 of such detachments elsewhere is urged. 



