PCKCILOSOMA EXCISUM. 217 



of pronotum, knees, and anterior tibiae white. Abdominal segments 

 broadly marked with longish white marks, spurs very short, claws with 

 a minute subapical tooth. The tr. radial nervure is as in guttatum, but 

 the third cellule is as long as the second, while in guttatum it is shorter. 

 Cenchri small, antennal fovea large ; sheath short. $ and <. 

 Length 2 3 lines. 



This species may be known by the first tr. cubital 

 nervure being almost always present, the hinder tibige 

 and tarsi quite black, or with only a very small white 

 band on the extreme base, the deep frontal foveaB, 

 short spurs, and claws with a small subapical tooth. 

 The antennal joints are more distinctly separated than 

 in yntf'tti'.iii. (For Saw, see Plate XXI, fig. 4. 



Ab. a. First tr. cubital nervure absent. 

 1. First tr. cubital nervure absent and no 



middle cellule in the hind wings. 

 c. Abdomen entirely black. 

 ,, (1. Pronotum black. 



Nothing very definite is known regarding the larva 

 of this common insect. It is frequently bred from 

 bramble stems, but the larvae in all probability merely 

 retired there to pass the pupal state. I once bred it 

 along with the Emphytus calceatus, and hence suspect 

 that it is attached to Spiraa, upon which I have found 

 a larva similar to that of calceatus but with black 

 marks along the sides. (See Plate VII, fig. 1.) 



Submuticum is one of the commonest species in the 

 genus, and is found almost everywhere in June and 

 late in May. 



It is apparently the commonest of the black species 

 on the Continent, but as they are mixed in most 

 collections it is impossible to give the distribution with 

 any exactness. 



8. PCECILOSOMA EXCISUM. 



Poeciloscma excisum, Thorns., Hym. Sc., i, 233, 8 ; Cam., Fauna, 



20; Andre, Species, i, 334, pi. 

 xx, fig. 2 ; Cat., 42,* 7. 

 vernalis, Diet., M T. Schw., Ent. Ges., 1868, p. 354? 



Black, half shining ; antennae shorter than abdomen, the edge of 



