Insects. 9549 



to an equal extent, for the partridges : this has been carried so far 

 that the legislature has at last stepped in to protect the farmer from 

 himself, to compel him to stay his suicidal hand. Well avAare am 

 I that a disposition has arisen among that better and more educated 

 class of farmers into whose homesteads the 'Zoologist' is penetrating, 

 to regard this subject in a more logical and more scientific point of 

 view. 



Edward Newman. 



Life- Histories of Saw flies. Translated from the Dutch of M. Snellen 

 van Vollenhoven, by J. W. May, Esq. 



(Continued from page 9477). 



Nematus Wttewaalli [v. VoU.) 

 Larva and imago undescribed. 



Nematus rufo-flavus, antennis, vertice, fronte, et tarsis posticis 

 fuscis, alarum stigmate pallide fusco, dorse metathoracis et 

 mesothoracis, macula basali abdominis ac maculis pectoralibus 

 nigris. 



I cannot find that this wasp has been described by any author who 

 has treated of European sawflies; as far as the larva is concerned this 

 may very well have been confounded with nearly allied species; for in 

 the absence of any but superficial descriptions of such very similar 

 larvae it is extremely diSicult, not to say impossible, to determine 

 which of the allied species the writer has really had in view. 



I received the larva from Dr. Wttewaall, who sent it me from Voorst 

 and Utrecht, also from Mr. de Roo van Westmaas from Velp; I also 

 took it myself near Leyden and at Sterkenburg near Driebevgen, in the 

 year 1861, when a considerable number of willows near ter Wadding, 

 between Leyden and Voorschoten, were entirely unleafed by this 

 insect. 



It lives gregariously until spinning up, almost always attaching itself 

 by the eight or ten anterior pairs of legs and raising the body frequently 

 in the air. How and where the eggs are deposited I do not know. 

 The young larvae differ very little from the older, being only somewhat 

 darker in colour. 



The larvae live on different species of willow; de Roo found them 

 on Salix capi aea, Wttewaall on Salix alba, and I myself took them on 



