246 CRABRONID. 
vation between them; the clypeus trilobate, the central lobe 
being subrotund, and slightly emarginate in front ; the stem- 
mata placed close together at the vertex ; the labrum con- 
cealed; the mandibles unidentate, acuminate. The THoRAXx 
ovate ; the collar transverse, linear, the lateral edges angular; 
the scutellum transverse ; the metathorax obtuse; the superior 
nings nith one marginal cell and three submarginal cells, the 
marginal being very long and narrow, the second and third 
submarginal cells narrowed tonards the marginal, and each re- 
ceiving a recurrent nervure, and the third distant from the apex 
of the wing ; the legs moderately long, and somewhat stout ; 
the anterior tarsi strongly ciliated, and the posterior tube 
spinose. The aspoMEN ovate; the margins of the segments 
depressed, and the apical segment obtuse. 
Type, Phil. coronatus. F. 
+4+ The name is derived from $iAéw, to love, and avbos, 
flower. Fabricius first established this genus in his ‘ Hn- 
tomologia Systematica, in 1793, and included in it, even 
in his last work on the order, the insects which Latreille 
had separated by the name of Cerceris. Jurine, by mis- 
taking Latreille’s type, considered the present Cerceres as 
the Philanthi, and proposed for the latter the name of 
Simblephilus, which necessarily becomes merely a syno- 
nyme. 
Sp. 1. Triancutum. Fab. 
niger, abdomine flavo, segmentis triangulo dorsah mgro. 
length 6—7 lines. 
Fab. E. S. 2. 289.2; Piez. 302. 4; Dumeril, Consid. pt. 59. fig. 6 & 7. 
Vespa triangulum. Fab.S. E. 373. 49; Sp. 1. 469.68 ; Mant. 294, 82; 
Villers, 3. 276. 25; Christ. 136; Oliv. Ency. Méth. 6. 692. 116. 
Vespa limbata. Olivier, 6. 693. 118. 
Crabro androgynus. Rossi, F. E, Mant. 1. 138. 305. 
