Al'PKNDIX. 



421 



On Sept. 2, 1910, I found a few larvie of this species and placed 

 tbem in a glass jar. These must be considered very late specimens, 

 but they pupated in 

 a few days' time, 

 and hatched out on 

 June 10, 1911. On 

 July 12, 1911, 1 

 found several speci- 

 mens of the larva) at 

 Wark worth, North- 

 Tunberland. They 

 showed themselves 

 as being more par- 

 tial to Larix Ameri- 

 cana tlian to the 

 European larch. 



The caterpillars 

 are of a green 

 colour, about 15 

 mm. in length. The 

 head is brown. As 

 a rule, they may be 

 considered to be 

 about full fed to- 

 wards the end of 

 July or middle of 

 August, although oc- 

 casionally they may 



be found later. They eat the single leaves on the shoots of the current 

 year, and so contrast with the larvae of Nematus Erichsonii, which 

 devour mainly the foliage or " tufted " leaves arising from the older 

 portion of the branches. 



The perfect insect is black in colour ; legs light yellowish-brown, 

 with blackish tarsi ; wings slightly iridescent, stigma brown, nervures 

 l:)lack or dark brown. Length 12 mm. 



icis. Th.' 

 •n destroyt 



tlie extreinr tips liavi^ 



ly the \m\ 



LOPHYRUS RUFCJS (Klug). 



On July 3, 1911, I discovered this species for the first time in 

 Northumberland. A six-year-old plantation of Scots pine showed 

 evidence of having been rather severely attacked by the larvte of this 

 insect. It was rather late for specimens, but after a considerable 

 search I succeeded in finding about a dozen in the larval stage. 



The larva has black shining head and legs. The body is of a 

 greenish dusky-grey colour with a lighter median line, and a rather 

 darkish line above the spiracles. The abdominal sucker feet are of a 

 light yellowish-grey colour. 



On Sept. 9 four saw-flies hatched out. The specimens were all 



