188 HYMENOPTEEA. 



2. (Edicephalus sororius. 



(Edicephalus sororius, Cresson, Trans. Am. Ent. Soc. ii. p. 28 ( ? ) 1 ; Proc. Acad. Phil. 1873, 

 p. 129. 



Hob. Mexico, Cordova l (Sumichrast). 



3. (Edicephalus glucidatus. (Tab. VIII. fig. 23.) 



Niger, flavo-variegatus ; annulo flagello antennarum, scutelli lateribus maculisque 2 mesonoti, flavis ; pedibus 



anterioribus, femoribus posticis supra basique tibiarumque posticarum, nigris ; stigmate testaceo. $ . 

 Long. 11 millim. 



Edb. Guatemala, Zapote (Champion). 



Antennae as long as the body, thickened and compressed before the apex. Head 

 smooth, shining, impunctate, yellow behind ; the vertex in the centre, a band going 

 from the back to the eyes, and the orbits narrowly behind, black ; a narrow line runs 

 also from the clypeal fovese to the side. Thorax shining and almost impunctate, a few 

 punctures on the scutellum ; black ; a broad line on the pronotum, the prosternum, the 

 meso- and metapleurae, except a large black space (with a yellow mark in its centre), 

 the sternum, the tegulae, two broad marks in the middle of the mesonotum, two smaller 

 and more rounded ones in front of the scutellum, the sides of the latter broadly, and 

 the apex narrowly, the suture of the mesonotum, the postscutellum, a transverse line at 

 the base of the metanotum, the apex of the metanotum (except a black line down the 

 centre and a large oval mark occupying the greater part of the metapleurae), yellow. 

 The base of the metanotum is punctured ; the apex transversely striated, with an 

 oblique slope, and scarcely hollowed in the centre. Petiole smooth, shining ; postpetiole 

 -slightly punctured on the upper part. Gastrocceli transverse, deep, impunctate, almost 

 touching in the centre, the part between black and longitudinally striated ; a little 

 beyond the gastrocceli is a deep transverse depression, black, and with large longitu- 

 dinal striations. The rest of abdomen shining, impunctate, and bearing long scattered 

 hairs; the postpetiole, the depression on the second segment, the base of the same 

 segment broadly, and of the other segments narrowly, black. The hind coxae are lined 

 with black all round at the base, and have a large black mark behind ; the four 

 anterior legs are narrowly lined with black above ; the hind femora are black all round 

 at the base and broadly so above, there being, however, a yellow space in the centre of 

 the black ; the hind tibiae are black at the base. The yellow of the legs has a fulvous 

 tinge. Areolet 5-angled, the lateral nervures converging above, the outer nervure with 

 a short bulla ; nervures black ; the stigma testaceous, black above. 



4. (Edicephalus gracilicornis. 



(Edicephalus gracilicornis, Cresson, Trans. Am. Ent. Soc. ii. p. 28 ( $ ? ) x ; Proc. Acad. Phil. 1873, 

 p. 130. 



Hab. Mexico, Cordova 1 (Sumichrast). 



