180 CRABRONIDE. 
+4+ This species is found in the vicinity of London ; and 
the Rev. G. T. Rudd has taken it in the Isle of Wight, 
near Ryde. 
Genus XXII.—Sricmus. Jur. 
Heap subquadrate, the angles rounded, flattish on its superior 
surface in the ¢, and convex in the ¢, wider than the thorax 
in the 2, of about its width in the ¢ ; eyes oval, distant, lateral ; 
stemmata placed in an equilateral triangle far back upon the 
vertex ; antenne inserted at the base of the clypeus, filiform, 
geniculate, the scape subclavate, the clavolet arcuate, with 
the joints cylindrical, excepting the pedicel, which is obconic ; 
clypeus rhomboidal, with the anterior edge emarginate ; labrum 
concealed; mandibles large, tridentate. Tuorax oval; the 
mesothorax somewhat gibbous, truncated; the collar trans- 
verse, with the angles acute; the scutellum transverse, and 
the metathorax elongate, obtuse. Superior wings with a very 
large lanceolate stigma, and one marginal cell, which becomes 
acuminated after the second submarginal, and two submarginal 
cells complete, the first twice the size of the second, and receiving 
near the middle the recurrent nervure, the second cell transverse ; 
the legs moderate, with a small pulvillus inserted in the furca 
of the bifid claw ; the posterior tibie with a few spines, and 
the anterior farsi simple. ABpomeN ellipsoidal, attached by a 
long linear petiole to the thorax, acuminate at the apex, the 
hypopygium in the ¢ produced beyond the podex, depressed, 
and obtuse at its extremity. 
Type, S. pendulus. Panz. 
+4+ This genus was created by Jurine in 1804, and named 
from the extraordinary size of the stigma of the wing. It 
was immediately adopted by entomologists; but it is re- 
markable that both Latreille and Dr. Leach placed the 
Pemphredon (Diodontus) minutus with it, notwithstanding 
Jurine’s figure. 
