Bree, We 
10. 
ite 
Explanation of Plate. 397 
EXPLANATION OF PLATE XIX. 
Right side of head (in dorsal aspect) of Acanthocrabro 
vagabundus 9, showing the large and definite (strongly 
depressed) superorbital foveae, between the inner margin 
of the eye and the ocelli. 
. The same of Blepharipus leucostomus 2, the fovea deep and 
narrow. 
. Stigma and cubital cell of B. lewcostomus 9, showing the 
point of reception of the recurrent nervure in the lower 
side of the cell. 
The same in A. vagabundus °. 
. The same in Crossocerus varius. 
. The same in Cuphopterus dimidiatus. 
. The same in Metacrabro (?) quadricinctus, (= interruptus, 
Saund.). Ce. = cubital cell; T. c. transverse cubitus; 
St. stigma; Rn. recurrent nervure. 
. Mandible of Clytochrysus cavifrons 2 in two aspects; the 
apex tridentate and no distinct tooth on the inner margin. 
. The same of A. vagabundus 9, the lower figure showing the 
distinct tooth on the inner margin. 
Mandible of Metacrabro (?) quadricinctus 9, tridentate at 
apex and with an inner marginal tooth; one of the apical 
teeth lies mostly beneath the other owing to the position. 
Mandible of A. podagricus 9; bidentate at apex and with 
an inner tooth. More highly magnified than the other 
species. 
. Mandible of B. (?) capitosus 9; 4-dentate apically. 
. Mandible of 7’. cribrarius 9, simply bidentate at apex. 
. The same of Hoplocrabro 4-maculatus 9, the apex simple. 
. Pygidial area of Xestocrabro vagus 9. 
. The same of B. leucostomus ; narrowly produced and 
excavated. 
. The same of H. 4-maculatus ; flat, sparsely punctured and 
with appressed setae apically. 
. The same of X. microstictus (larvatus); the area much less 
produced apically than that of vagus. 
. The same of C. varius ; the area is densely punctured and 
clothed with appressed setae. 
. Apical margin of clypeus of H. 4-maculatus ; the upper 
figure of the 3, the lower of the 9. 
. Apex of clypeus of B. (?) gonager 2 (more highly magnified 
than the preceding figure). 
