Insecta. 69 



aux genres, un second aux especes. Esperons qu'un nouveau fascicule paraitra 

 bientöt, fascicule dans lequel les auteurs pourraient donner un tableau general 

 des Dipteres vulnerants de l'Amerique du sud et etablir leurs rapports zoogeo- 

 graphiques. Germain. 



150) Webster, F. M. and Parks, T. H., The Serpentine Leaf-Miner. 

 In: Jour. Agr. Research, Dept. of Agr., Washington, D. C, Vol. I, Nr. 1, 

 S. 59—87, 1913. 



The Serpentine leaf-miner is the larva of a minute yellow and black fly 

 (Agromyza pusilla Meig.), which is common in alfalfa fields during the summer. 

 Tbe eggs are deposited by the adult in the leaf tissue in punctures identical 

 with those made in feeding. The average period of the complete life cycle is 

 23 days. Pupation in eastern states occurs entirely in the soil, in the arid 

 western states commonly in the larval Chamber in the leaf. There are 5 or 6 

 generations a season in latitude 41°, the number varying with the length of the 

 growing season. Besides alfalfa, the leaf-miner attacks clover, cowpeas, rape 

 and cotton. Numerous parasitic insects attack and consume the larvae and 

 pupae within their mines. These serve to keep the insect in control but their 

 efficiency decreases upon the approach of cool weather. Pearl. 



151) Fryer, S. C. F., Field observations on the Ennemies of Butter- 

 flies in Ceylon. In: Proc. Zool. Soc, Bd. 1913, Nr. III,' S. 613—618. 



Gives records of observations on the capture or attempted capture of Le- 

 pidoptera by Birds. The author summarizes his results as follows. (l) Butterflies 

 do not form any large percentage of the food of the more common insectivorous 

 birds in Ceylon. (2) With the exception of the Wood-swallow (Artanms fuscus), 

 birds are by no means clever in capturing butterflies. (3) The Wood-swallow is 

 the only bird which actually lives on butterflies, and it almost always chooses 

 butterflies of the so-called nauseous genera Danais and Euploea; it seemed, how- 

 ever, that this preference was due to the difficulty of catching faster-flying 

 butterflies, and not to the superior flavour of the Danais or Euploea. 



Doncaster. 



152) Carpenter, Gr. D. H., Synepigonic series of Papilio dardanus from 

 parent form planemoides. In: Proc. Entom. Soc. London 1913, (Bd. III), 

 S. LIH— LVI, 1914. 



153) Poultoii, E. B. and Swyiinerton, C. F. M., Papilio dardanus, bred 

 in S. E. Rhode sia. Ibid. S. LXIX— LXX. 



Both these notes record the result of rearing the eggs laid by females of 

 the various $ forms of P. dardanus. Carpenter gives details of the life-history. 

 The results were (l) planemoides $ gave 7 hippocoon, 3 planemoides, 12 cf. (2) hip- 

 pocoon $ gave (several times) only hippocoon $ [in a subsequent experiment, not 

 yet published, this result did not follow, Ref.]. (3) Cenea $ gave hippocoon, in- 

 termediate, and cenea $$ (two broods). (4) Trophonius $ gave 2 hippocoon, 

 1 trophonius. (5) Niobe $ gave hippocoon, niobe, and intermediate between niobe 

 and cenea. Doncasten 



154) Thilo, 0., Das Schnellen der Springkäfer (Elateriden). Erläutert 

 an einem springenden Modell. In: Biol. Centralbl., Bd. 34, Heft 2, S. 150—156, 

 6 Textfig., 1914. 



Verf. vergleicht den Körper des Springkäfers mit dem als „Klippholz" be- 

 kannten Kinderspielzeug, d. h. einem beiderseits bleistiftartig zugespitzten Holz- 



