156 • Mr. Briclgman's additions to Mr. Marshall's 



buccated, seen from above the portion behind the eyes 

 about equal to one-half the width of the eyes ; 1st joint 

 of flagellum the longest, about four times as long as 

 wide, the remainder gradually decreasing in length, 

 filiform, a little shorter than the insect. Thorax longer 

 than high ; mesothorax trilobed, the lines distinctly im- 

 pressed in front ; metathorax of ordinary length, sloping 

 in a curve almost from base to apex, with indications of 

 an elongate pentagonal supero-medial area, not closed 

 behind ; posterior transverse line only denned at the 

 sides. Abdomen ovate, about as long as the head and 

 thorax, and a little wider than the latter ; the 1st seg- 

 ment is slightly longer than three times the width of the 

 base ; spiracles very prominent ; post-petiole about one- 

 fourth longer than wide, and not quite twice the width 

 of the petiole ; 2nd segment subquadrate, i. e., as long 

 as the width of the apex ; remainder transverse, the 

 3rd and 4th the widest, and of about equal width ; the 

 apical half of the abdomen covered with pubescence, 

 about midway between dense and very scattered. Legs 

 slender. Wings, outer nervure of areolet wanting, 

 recurrent nervure curved towards the apex of the wing, 

 transverse ordinary interstitial, no nervelet, transverse 

 anal opposite, divided one-third from the bottom, emit- 

 ting nervure distinct. 



Scape and base of 1st joint of flagellum partly pale 

 chestnut-red ; collar and apex of scutellum dull red ; 

 apex of 1st segment of abdomen, 2nd and 3rd, pale 

 chestnut-red, the 2nd with a transverse fuscous stain in 

 the middle, the 3rd with a large brownish black mark 

 which occupies almost the entire segment. Legs pale 

 chestnut-red ; front femora behind, intermediate ones in 

 front, with a fuscous line ; hind coxae, hind femora, 

 except the base, fuscous ; apex of middle and hind tibiae 

 slightly stained. Wings stained with a slightly darker 

 band across the wing before the stigma, and another 

 from the middle of the stigma to the apex of the wing, 

 an irregular white line running along the recurrent 

 discoidal nervure; both the radial nervure and stigma 

 brown, the latter white at the base. Length, 4*5 mm. 



Male taken at Felthorpe, near Norwich. 



This insect, which I have little doubt is the male of 

 one of the Pezomachus group, appears to me to be un- 

 described. In many respects it agrees very well with 



