XXIX. ALYSON. °* 207 
the metathorax elongate, truncated posteriorly, with a spine 
on each side near the vertex of the truncation ; the superior 
nings with one marginal and three submarginal cells, the first 
submarginal cell longitudinal, and receiving the first recurrent 
nervure near its apex, the second semicircular, petiolated above, 
and receiving the second recurrent also near its apex, the third 
narron, transverse; the legs slender, moderately long, the 
anterior tarsi having the first joint long, the three following 
very minute, and the terminal one larger, armed at the apex 
with a bifid claw, which has a large pulvillus placed within 
the furca, the other tarsi with their joints gradating in length, 
the first being the longest, the posterior femora with a small 
dentiform process beneath at their apex. The aspomen ovate, 
acuminate at the apex in the ¢, truncated in the g, witha 
small spine at the angles of the truncation. 
Type, A. spinosus. Fab. 
++ The derivation of this name is probably from daAvccoy, 
the name of a plant in Plutarch; Jurine drops one of the 
oo, but Panzer, in his ‘ Kritische Revision,’ spells it cor- 
rectly, although it is necessary to adopt Jurine’s ortho- 
graphy. 
Sp. 1. Lenicornis. Fab. 
niger, abdominis segmentis duobus primis rufis, tibiis tarsisque 
quatuor posticis fuscé rufis, alarum superiorum fascid trans- 
versali fuscd. 
a antennarum articulo ultimo lunato. 
length 3—3i lines. 
Latr. Gen. 4. 86; St. Farg. Ency. Méth. 10. 50.1; V.d. Lind. pt. 2. 
88. 1. 
Pompilus lunicornis. Fab, E. 8. Sup. 249. 21; Piez. 194. 32. ¢. 
Alyson Kennedii. Curtis, Brit. Ent. fol. 584. 2. 
Head black, delicately punctured ; the antennz piceous above, 
the scape rufescent in front, and the remainder fulvous beneath ; 
