THE ENTOMOLOGIST. O 



undertaken at the right times, along our rivers, on the banks 

 of which scarcely anything but various species of willow is to 

 be seen, would amply repay the trouble. I have not as yet 

 tried this method of search, and have but seldom met with 

 Cimbex larva) on willows growing along the roads or ditches. 



I am thus by no means able to say as regards our country, as 

 Brischke says of the environs of Dantzig, that the present 

 species is numerously represented in it ; on the contrary, I 

 am bound to state that it is of very infrequent occurrence. 

 Besides having been taken by me, the larva has been found 

 by C. B. Voet, the celebrated Lyonet, and Messieurs H. 

 Gerlach and F. J. M. Heylaevts, jun. 



The following are the observations of the first-named 

 writer in his manuscript work, dedicated to the stadholder, 

 William HI.: — "I found this larva on willow trees. In 

 crawling it principally makes use of its six sharp anterior 

 claws; for the rest it has, besides these, sixteen very short, 

 blunt feet or processes, with which it attaches itself very 

 strongly to the leaves, according to my notion, in the same 

 way as boys lay hold of the stones by means of pieces of 

 leather; but, as far as I have observed, it only makes use of 

 the eight feet immediately Ibllowing the sharp claws, simply 

 dragging along the rest of the body bent round underneath. 

 It very seldom moves or crawls about, lying almost always 

 curled up, with the tail against the anterior feet and the head. 

 It fed on willow-leaves up to late in September, and then 

 crept into the refuse of rotting leaves," &c. 



Lyonet writes as follows, in his work, ' Recherches sur 

 Tanatomie et les metamorphoses de difi'erentes especes 

 d'Insectes, pp. 168, 169: — "La mouche dont on va parler 

 nait d'une fausse-chenille encore a vingl-deux jambes et dont 

 le onzieme anneau est le seul qui en est depourvu. Elle vit 

 de (euilles de saule et a un pouce et sept lignes de longueur. 

 Je suis porte a croire que c'esl la raeme dont parle Goedaert, 

 torn, i., exper. 64, et qu'il prend pour une chenille veritable. 



II dit pareillement que la sienne vivoit des feuilles du meme 

 arbre, -mais il ajoute qu'elle ne faisoit qu'un repas par jour, et 

 vecut chez liii deux ans et vingt-quatre jours sans manger ni 

 agir: aussi ne marque-t-il pas qu'elle ait change de forme, 

 ce qui pourroil bieu n'etre provenu que de ce qu'elle ne se 

 portoit pas bien, ou avoit eie gardee dans un lieu trop froid ; 



