THE ENTOMOLOGIST. 13 



say the first half of May. I should like to know a little more 

 of Falcula than I do; but had a few larvae of a supposed 

 second brood, which fed up about mid-October this autumn, 

 and are still in pupa. I have never had reason to suspect 

 Hamula of being more than double-brooded, though a few 

 individuals may emerge prematurely in confinement; as 

 happened to me in the case of P. syringaria this autumn. 

 Six larvae, instead of hybernating, fed up, and produced 

 imagos in the middle of September. The eggs of Unguicula 

 were procured by putting a captured female in a muslin 

 sleeve on a branch of the growing beech. The eggs were 

 laid chiefly on the upper side of the leaves. — [Rev.] Bernard 

 Smith; Marlow, Bucks, December 19, 1871. In a letter to 

 Mr. G. H. Raynor. 



Caterpillars in Belgium. — The Provincial Council of 

 Brabant have published a decree to the effect that as the 

 regular annual destruction of caterpillars and other insects, 

 which lakes place in February, has not been found to clear 

 the land of these pests, all owners and occupiers of land are 

 enjoined to clear their trees, shrubs, hedges, and bushes, of 

 caterpillars during the month of November, it being con- 

 sidered that good results will be attained by this second 

 operation. Can you throw any light on this subject.'' What 

 si)ecies of Lepidoptera can be found on the trees, shrubs, 

 hedges, and bushes, of Belgium, in November and February ? 

 — Edwin Birchall. 



I suppose Aporia Cratsegi, the black-veined white, to be 

 the insect to which this paragraph refers ; but, of course, 

 this is little better than a guess. 



Harvester, or^ Harvest Bug. — P. T. enquires. What is the 

 harvester ? 



A minute insect of the family [Acaridae, called either 

 Acarus or Leptus autumnalis. It is of a reddish colour, and 

 in the autumn frequents harvest-fields and all manner of 

 herbage. In walking through stubble and meadows it is 

 readily detached from the herbage and clings to the clothes, 

 more particularly the stockings ; it thus gains access to the 

 body, and, piercing the skin, conceals itself beneath, and 

 causes intolerable itching : its progress over the surface of 

 the skin is usually arrested by any ligature, as a garter; 

 hence that part of the leg pressed by the garter is a favourite 

 locality. 



