170 HYMENOPTERA ACULEATA. 



yellow abdominal bands in eitber sex, by tbe somewhat dull, 

 very largely punctured mesopleuroe tbrougliout, and the 

 want of the well-defined crenature, aud by the darker tibiae, 

 which are pale only near the base ; the ? may also be 

 known by the much shorter third joint of the antennae, 

 which is not nearly twice so long as the second and by the 

 less prominent, black, anterior angles of the pronotum. 



L, 8-11 mm. 



Not very common, but widely distributed. 



Colchester J {Harwood). Hastings, not rare ; (Frishij.) 

 Norfolk; [Bridgman). Glanvilles Wootton, once bred from 

 an oak apple; (Dale). Exminster ; Buckleigh ; [Bigndl). 

 Lancashire ; [Gardner). Perth. 



EUMENES, Latr. 



There is only one British species of this genus, and it 

 may be known at once from Odtjnerus, by the absence of 

 tbe apical concavity of the propodeum and by the very 

 narrow petiolated basal segment of the abdomen, which is 

 not nearly half so wide as the second ; the antennee of the 

 (J terminate in a hook or reflexed apical joint, much as in 

 the Ancistrocerus section of the genus Odynerus. Makes 

 small mud nests, which it attaches to stems of heath or 

 other plants. 



E, COarctata, Linn. — Black, rugosely punctured, head 

 and thorax clothed with short brownish hairs, clypeus and 

 scape of the antennae in front in the S , a spot at the base 

 of the clypeus in the ? , and a spot between the antenna in 

 both sexes yellow; thorax with a pronotal band in front, 

 tegula3 outwardly, a spot on the mesopleurae, the post- 

 scutellum, and often a spot on each side of the propodeum 

 yellow ; abdomen with the basal segment closely and rugosely 

 punctured, clothed with brown hairs like the thorax, 

 narrowly petiolated, campanulate, with a slight longitudinal 

 channel, its apical margin raised, smooth, and yellow, and 

 there is sometimes a yellow spot near the centre of each 

 side, second and following segments punctured, but more 



