Catalogue of British Ichneumonidce, 411 



Ichneumon plagiarius, Wesm. 



Wesm., Mant., 47, ? . 



The male in structure is like the female, and differs 

 only in coloration, in having a white spot on each side 

 of the clypeus, facial orbits to the vertex, and a line 

 before the wings, white ; the line below the scutellum is 

 sometimes white ; there is no white at the apex of the 

 abdomen ; the -coxae are a little darker, and antennae 

 quite black. 



I have taken both sexes in the neighbourhood of 

 Norwich, in August, a few years ago. 



Ichneumon pulchellatus, n. s. 



Niger, abdomine pedibusque maxima ex parte rufis ; Bcutello 

 flavo. 



Shining punctate ; head transverse ; behind the eyes scarcely 

 naiTow ; clypeus punctate, apex truncate ; teeth of mandibles 

 unequal, superior much the longer ; antennae of male about three- 

 fourths the length of the body, of the female but little longer than 

 the head and thorax ; 1st joint of flagellum about twice as long as 

 wide, penultimate joint quadrate in the male, the 11th quadrate in 

 the female, apical joints transverse except the last. Mesonotum 

 rather closely and somewhat coarsely punctate ; scutellum some- 

 what rounded, punctate ; metathorax shining, rather coarsely 

 rugose, deeply notched behind, with five very distinct arese ; 

 supero-medial area transverse, very narrow, the posterior in- 

 distinctly tridivided ; spiracles of female ovate, and more elongate 

 in the male. Abdomen of the female almost cylindrical, about as 

 wide as the thorax ; apical half of 2nd, 3rd, and 4th segments of 

 equal width, the 2nd segment rather longer than wide, 3rd trans- 

 verse ; in the male the apex of the 2nd segment is the widest, and 

 from this to the apex it gradually tapers, slightly narrower than 

 the thorax ; 1st segment shining, petiole punctate, middle arese of 

 post-petiole obscurely rugulose, smooth at the apex, lateral arese 

 slightly rugosely punctate ; 2ud and 3rd segments in the female, 

 2nd to 4th in the male, punctate on a finely reticulate ground ; 

 apical segments almost free from sculpture ; sides of abdomen 

 pilose ; gastrocceli on the 2nd segment moderately shallow in the 

 female, rather deeper in the male, the space between them about 

 equal to the middle area of the post-petiole ; the post-petiole of 



TRANS. ENT. SOC. LOND. 1889. — PART III. (OOT.) 2 F 



