544 



in tlie wet, lower portions the attack was slight. The appearance of 

 the injury was quite t}'pical and comparable only with that of Lema 

 {Crioeeris) cyanella, L. Feeding started at the centre of the leaf and 

 extended upwards. Young plants only seemed to be attacked. 



The injury is not of a lasting character, growth being only delayed. 

 Remedial measures are of doubtful value. Frequent harrowing seems 

 to reduce attack. 



It was only during the mating period that these beetles were seen on 

 grain, and this may confirm Heikertinger's view that for mating the 

 Halticinae seek plants other than their normal food-plants. 



Kruger (P.). Beobachtungen am Mehlmottenparasiten Nemeritis 

 canescens, Gravenhorst ; zugleich ein Beitrag zur Kenntnis der 

 ausseren Anatomie der Ichneumoniden. [Observations on the 

 Meal Moth Parasite, Nemeritis canescens, Gravenhorst, being also 

 a Contribution to the Knowledge of the external Anatomy of the 

 Ichneumonids.] — Zeitschr. f. angew. Entom., Berlin, vii, no. 1, 

 September 1920, pp. 58-67, 19 figs. 



A Campoplegine, Kemeritis canescens, Grav., occurs in German 

 flour miUs, where it parasitises EpJiestia kiihniella, Z. In all probabiHty 

 it was introduced into Central Europe with the moth. Its food in the 

 mills is not known. It has never been seen eating flour, and it does 

 not appear to be long-hved, 16 days being the longest period that any 

 of a large number of females found on 25th October 1918 survived. 

 From a subsequent breeding experiment reproduction would appear 

 to be parthenogenetic. The author points out that N. canescens 

 provides favourable opportunities for studying the life-history of 

 Ichneumonids. Its method of oviposition is remarkable. A female 

 placed near meal-moth webs runs about on the flour, digging its ovipo- 

 sitor in repeated!}' and apparently haphazard. It is possible that 

 meal-moth larvae had previously occupied these spots. The victims 

 are quite conscious of attack and endeavour to avoid their enemy. 

 The latter carries eggs at the end of its ovipositor ready for instant 

 deposition in the host. 



After quoting Schmiedeknecht's description of N. canescens the 

 author briefly describes its external anatomy. 



LEGISLATION. 



Rules and Regulations of the State Plant Board effective July 1, 



1920,— Arkansas State Plant Board, Little Rock, Circ. 10, Jidy 

 1920, 28 pp. [Eeceived 18th October 1920.] 



All the regulations here detailed were passed or amended on or 

 smce 24th April 1917. 



The insects declared to be pests under these regulations are : — 

 Platyedra [Pectinojphora] gossypiella, Cylas formicarius, Aspidiotm 

 perniciosus, A. uvae (grape scale), Chrysomphalus tenebricosus (gloomy 

 scale), C. obscurus, Aulacaspis fentagona, Eriosotna Janigerum, 

 Dialeurodes citri and D. nubifera. 



