68 
Mr. W. E. Shuckard’s Descriptions 
XIV. Descriptions of New Exotic Aculeate Hymenoptera. 
By W. E. Shuckard, V. P.E. S., Librarian to the Royal 
Society. 
[Read 4th January, 1836.] 
(Plate VIII.) 
I beg leave to occupy the attention of the Society a few minutes 
with descriptions of some new genera and species of Exotic Acu- 
leate Hymenoptera. The Society is indebted to my friend Mr. F. 
Smith for the accompanying accurately executed plate. 
Family. MUTILLIDiE. 
Genus. Psamati-ia,* Shuck. Plate VIII. fig. 1. 
Head transverse, depressed ; stemmata placed in a curve on the 
vertex. Eyes lateral, distant and oval. Antennae inserted at 
the base of the clypeus, nearly as long as the scutellum, 
thirteen-jointed, the joints very distinct, with the scape the 
thickest, the second the smallest, and the third the next 
shortest, the remainder subequal, and the entire antenna sub- 
fusiform ; the clypeus carinated longitudinally in the centre, 
subemarginate in front, and laterally slightly produced and pro- 
jecting, giving it the appearance of being subbilobate (ap- 
proximating to that of Cerceris ); labrum concealed ; mandibles 
strong, tridentate with the teeth subequal, the external one the 
largest. 
The prothorax forming a slight convex curve extending between 
the tegulse of the wings ; the mesothorax with two longitudinal 
furrows and a central elevation which extend from its centre 
to the suture of the scutellum ; the scutellum quadrate ; and 
the metathorax on a gradually inclined plane. The superior 
wings with one marginal and four submarginal cells ; the fourth 
apical and the second receiving the two recurrent nervures 
just beyond its centre. Legs moderate, slender ; jwsterior 
tarsi elongate, and all the terminal claws minute. 
Abdomen lanceolate ; the first segment forming a petiole, and not 
so wide as the second, and the seventh last segment has on 
each side two valves projecting beyond it, each forming the 
quadrant of a circle, and externally fringed; the hypopygium 
quadrate. From a male. 
* VaiJt-aQot;, sabulum. 
