118 [October, 



Section I. 



Accessory nervure in hind-wings received a little beyond the 

 middle ; head and thorax strongly punctured. 



A. Inner spur on the posterior tibise dilated into a leaf-like expansion ; a more or 



less clearly defined fascia across the vertex ; antennae 23-jointed = virens and 

 dorsatus. 



The $ of the latter species may be known from the same sex of virens by 

 there being no fascia over the antennae, there being only a small dark space 

 surrounding the ocelli, by the under-side of the thorax bearing no black, and 

 by the scutellum being much less strongly punctured. The $ may be known 

 from virens S by the spots on the vertex, by the back of abdomen being entirely 

 black, the under-side, too, being not red as in virens ; the antennae are more 

 slender, the last two joints are distinctly shorter than the preceding, while in 

 virens the last three are of nearly equal length, and considerably thicker. 



B. Hind spurs not dilated, simple. 



a. Seventh ventral segment not incised, oblong ; legs, for the greater part, 

 whitish-yellow ; abdomen yellow, broadly banded with black ^=frutetorum. 



h. Seventh ventral segment in front of saw with a triangular incision ; broad, 

 wide, for the greater part black ; legs black at base ; femora (especially the 

 posterior) more or less black ; antennae 19 — 20-jointed = pini. 



Section II. 



Accessory nervure appendiculated close to the apex ; body 

 smooth, shining, almost impunctate ; abdomen long, cylindrical ; the 

 7th ventral segment entire {sertiferus) , or slightly incised {pallipes) ; 

 claws cleft {sertiferus) , or simple {pallipes), = sertiferus and pallipes. 



Obs. — I have found, in Inverness-shire, a larva on juniper which 

 agreed very well with the description of that of Monoctenus juniperi, 

 but unfortunately failed to rear it. From its wide distribution on 

 the continent, I have no doubt this species will, before long, be dis- 

 covered in Britain. The imago should be looked for in May. 



LTDINA (vol. i, p. 65). 



We have only two genera in Britain belonging to this sub-family, 

 namely : — 



Pamphilius, Latr. (= Lyda, Tab.), with three spines on hind 

 tibiae, and with setaceous, simple-jointed antennae ; and 



Megalodontes, Latr. (= Tarpa, Fab.), with two closely situated 

 spines on tibise, and the antennae with the joints dentate, and never 

 more than twenty-two in number. 



