THE ENTOMOLOGIST. 5 
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. 1 have not as yet 
tried this method of search, and have but seldom met with 
Cimbex larve 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, | 
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. Heylaerts, jun. 
The following are the observations of the first-named 
writer in his manuscript work, dedicated to the stadholder, 
William I11.:—‘ 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 Jeaves, 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 ] have observed, it only makes use of 
the eight feet immediately following 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 
Yanatomie et les métamorphoses de différentes espéces 
d’Insectes, pp. 168, 169:—‘“ La mouche dont on va parler 
nait d'une fausse-chenille encore 4 vingt-deux jambes et dont 
le onziéme anneau est le seul qui en est dépourvu. Elle vit 
de feuilles de saule et a un pouce et sept lignes de longueur. 
Je suis porté a croire que c’est la méme dont parle Goedaert, 
tom. i., expér. 64, et quwil prend pour une chenille véritable. 
ll dit pareillement que la sienne vivoit des feuilles du méme 
arbre, mais il] ajoute qu’elle ue faisoit qu’un repas par jour, et 
vécut chez lui deux ans et vingt-quatre jours sans manger ni 
agir: aussi ne marque-t-il pas quelle ait changé de forme, 
ce qui pourroil bien n’étre provenu que de ce quwelle ne se 
portoit pas bien, ou avoit été gardée dans un lieu trop froid; 
