364 Mr. Bridgman's additions to T. A. Marshall's 



Clypeus, mandibles, scutelliTm, and post-scutellum reddish 

 yellow ; legs red, hind tibiae and hind tarsi black ; abdomen of 

 female has the last segments with a thin pale apical margin ; the 

 male has the apex of 1st and 2nd segments obscm-ely pale. Male 

 and female. Length, 5 — 5'5 mm. 



I bred a single male and female from the larvae of the 

 pear-tree sawfly, Eriocampa canines, taken from a garden 

 in Norwich, which has since unfortunately been built 

 upon. In general appearance the insect, as to size and 

 shape, is not unlike Erromenus frenator ; legs rather 

 more slender. 



Erromenus {Trichocalymma, Foerst.) plehejum, Wolds. 



Wolds., Beit. z. Kent. d. u. St. Petersburg, vork. Ichn., 

 1877, 35, ^ . 



Taken by Mr. T. R. Billups at Dulwich, June 11th, 



1885. 



Acrotomns xanthopus, Holm. 



Holm., Mon. Try. Suec, 223, 2, <? . 



Mr. J. E. Fletcher took this near Worcester in 1873, 

 at the end of October. 



Bassus hizonarius, Gr. 



Gr., I. E., iii., 350, 23, <? . 



A specimen of this Bassus was taken by Mr. Billups at 

 Peckham, May, 1885. 



Bassus scutellaris, n. s. 



Abdominis medio rufo, dorso nigro-maculato ; scutello flavo, 

 pedibus flavis, areola nulla. 



Forehead smooth and shining ; antennae slender, about the 

 length of head and thorax ; apex of clypeus truncate ; the middle 

 of the clypeus has three longitudinal depressions, which occupy 

 nearly the whole area of it ; the centre one is narrow like a furrow, 

 the lateral ones are about as broad as long ; a distinct triangular 

 elevation runs down the face from the base of the antennae to the 

 clypeus, as wide as the antennae above, terminating in a dej)ression 

 above the clypeus. Thorax smooth and shining, with indications 

 of scattered punctures ; siipero-medial area of metathorax complete, 

 longer than wide. First segmeiit of abdomen long and slender ; 

 petiole (juadrate, rather wider than the post-petiole, and about 



