fTydrometride. 153 
‘13) 14, Lateral margin of the pronotum yellow 
also anteriorly. 
(18) 15. Posterior tibie and tarsi together 
almost as long as the femora. 
(17) 16, Male with two teeth on the sixth seg- 
ment beneath, female with the first 
genital segment transverse, and trans- 
versely impressed. é : 
(16) 17. Male without teeth on the sixth seg- 
ment, female with the first genital 
segment square, and carinated longi- 
ODONTOGASTER. 
tudinally : : ‘ . LACUSTRIS. 
(15) 18. Posterior tibize and tarsi together 
about two-thirds as long as_ the 
femora 5 : : : . . ARGENTATA, 
G. rufoscutellata, Zutr.—Rufescent or ferruginous ; 
head, a spot on each side of the pronotum in front, the 
mesopleurze just under the pronotal plate, the elytral nerves 
and the abdomen abuve blackish brown, beneath densely 
clothed with silvery shining hairs, Antenne very long, 
when turned backwards reaching to the posterior coxe, 
first jot not quite so long as the second and third 
together, second and fourth subequal, third rather shorter ; 
pronotum elongate, very slightly widened behind, base pro- 
duced in a rounded angle over the elytra, disc with a 
distinct, shghtly raised, paler dorsal line, and with a 
blackish spot on each side of it near the anterior margin, 
surface clothed with exceedingly short golden hairs, visible 
only under a strong power; elytra slightly longer than the 
head and pronotum together, rufescent, nerves thick, 
darker, and clothed as the pronotum; abdomen black 
above; connexivum narrowly pale, produced at the apex 
into a long spine, about equalling the genital seements in 
length in the 4, or longer than these in the ¢; legs ferru- 
ginous, apical joint of the posterior tarsi not a quarter so 
long as the basal. 
L. 17 mm. 
Very rare; Mousehold Heath, Drayton Drewray, 
Horning, Hdwards; Guestling, near Hastings, I. P 
