Insecta. 33 



Hübn. zahlreich gefangen, so daß eine ungewöhnliche Wanderung dieser Art nach Norden 

 angenommen werden muß. J. Schaxel (Jena). 



71) Kandall, I. L., The cotton worm. In: Science N.S. 34, 880, S, 638. 1911. 



Zur Notiz von H. T. Fernald (Ref. Nr. 70) wird mitgeteilt, daß auch in Pittsburgh 

 in der zweiten Septemberhill fte 1911 große Schwärme der Motte Alnmba argillacea be- 

 obachtet wurden. J. Schaxel (Jena). 



^12) Watson, I. R., The moth of the cotton worm. In: Science N.S. 34, 887, 

 S. 917—918. 1911. 



Auch im Süden (Florida) war die Motte Alamha argillacea im Jahre 1911 un- 

 gewöhnlich häufig. J. Schaxel (Jena). 



73) Lodd, F. P., Some remarkable Ant-friend Lepidoptera from 

 Queensland (with Supplement by E. Meyrick). In: Trans. Entom. Soc. 3 — 4, 

 S. 577—590. 1 plate. 1911. 



Three species of the Tineid genus Cyclotorna are described and the life- 

 history of one of them given in detail. The moth lays its eggs on trees infested 

 by Homoptera of the family Jassidae. The larvae when they hatch are oval and 

 flat, at first yellow, later pink. They attach themselves to the abdomen of the 

 Jassid, sometimes several on one host, fixing themselves by a web, but they may 

 move from one host to another. After a time the larva leaves the Jassid, spins 

 a cocoon on the bark of the tree, and after about three days emerges as a larva 

 of different form, flatter, with two long terminal processes, and brightly coloured. 

 In this stage it rests on the tree with the terminal Segments turned up and the 

 anal parts protruding. The trees are frequented by a species of ant which ob- 

 tains a sweet secretion from the Jassid Homoptera. As soon as an ant finds a 

 larva in the position described it carries the larva away to the nest. In the ants' 

 nest the moth larva preys on the larvae of the ant, sucking their Juices, and 

 supplies the ants with a liquid product from the anus. When ready to discharge 

 this excretion it assumes the position described, and the ants drink the fluid as 

 it exudes. The larvae die if not attended to by the ants in this way, and they 

 are in other ways cared for by the ants. When ready for pupation the larvae 

 accompany the ants to a tree, where they spin a cocoon from which the moth 

 emerges. Doncaster (Cambridge). 



74) Crawley, W. C, Parthenogenesis in Worker Ants, with special 

 reference to two colonies of Lasius niger. In: Trans. Entom. Soc. 1911, 

 3—4, p. 657—663. 



The author gives a detailed account of two nests of L. niger which were 

 without queens of their own species, but had adopted a queen of L. umbratus. 

 In each case the niger workers laid eggs which developed into workers. No males 

 were produced. Dissection proved that the workers possessed no spermatheca 

 and could not have been fertilized. Reichenbachs Observation in the production 

 of females (workers) by unfertilized workers is thus confirmed. 



Doncaster (Cambridge). 



75) Bonisthorpe, H. S. J. K. and Crawley, W. C, Experiments on the formation 

 of Colonies by Lasius fuliginosus Females. In: Trans. Entom. Soc. 3 — 4, 

 S. 664— 672. 1911. 



Experiments are described which prove that a fuliginosus female may be success- 

 fully introduced into a colony of L. umbratus and there bring up young of her own 

 species with the aid of her hosts. Doncaster (Cambridge). 



Hierzu: Nr. 17,43. 



Zentralblatt f. Zoologie, aUgem. u. experim. Biologie. Bd. 1. 3 



