80 HYMENOPTERA. 



furrows, the apical part of the middle furrow nearly as wide as the oblique furrows ; 

 the oblique depression on the metapleurae shallow, narrow. Petiole shining, impunc- 

 tate, gradually, but not very much widened towards the apex, the base depressed ; the 

 other segments densely covered with fulvous pubescence, opaque. Pygidial area 

 coarsely longitudinally striolated, and bearing stiff silvery pubescence; the apex 

 impunctate, shining, glabrous. The longitudinal furrow on the mesopleurse wide and 

 deep, and becoming indistinct towards the apex ; the oblique furrow obsolete. The 

 depression in front of the scutellum distinctly foveolate. The scape entirely and the 

 flagellum beneath, the head in front below the antennae, the margin of the pronotum, 

 the tegulae, the tubercles, the scutellum entirely, the metanotum in the centre, and two 

 large oblong marks on the lateral apex of the median segment, reddish. The petiole 

 is yellow at the base, black in the middle, reddish at the apex ; the following three 

 segments at the apex broadly, the apical two entirely, red ; the ventral segments are 

 yellowish at the apex, the apical one entirely red. Legs black at the base ; the femora 

 broadly black above, the anterior pair at the base only ; front tarsi strongly spined ; 

 the hind tibiae with three stout spines laterally and one at the apex. Second cubital 

 cellule much narrowed above, the two nervures being brought very close together 

 owing to the second cubital nervure bending gradually to the first ; cubitus distinct, 

 but thin beyond the third cellule. 



Allied to G. phaleratus, but differing in having the scutellum foveolate at the base. 



18. (xOrytes balteatUS. (Tab. V. figg. 20; 20 0, head from in front; 20 b, 

 antenna.) 

 Niger ; scapo antennarum, margine pronoti, macula mesopleuralis, scutello, metanoto, maculis 2 in segmento 



mediali tegulisque, flavis ; flagello antennarum rufo ; pedibus flavis, superne nigro-lineatis ; alis flavo- 



hyalinis. <j> . 

 Long. 16 millim. 



Bab. Guatemala, Zapote {Champion). 



Antennae stout, the joints slightly dilated on the underside, and each longer than 

 broad, the third and fourth subequal, the basal joint longer than the second and third 

 united. Head narrower than the thorax, opaque ; the front, vertex, and occiput densely 

 covered with fulvous pile, the cheeks and clypeus with silvery hair ; the labrum sparsely 

 fringed at the apex with long silvery hair ; eyes converging beneath ; the ocelli in a 

 slight hollow; a narrow shallow furrow runs down from the anterior ocellus to the 

 antennae ; clypeus broadly convex, the apex almost transverse in the middle ; the front 

 bears some scattered punctures. Thorax above densely covered with fulvous pubes- 

 cence, the sides sparsely with pale, and the breast more thickly with a longer silvery 

 pubescence, the sides being much more shining than the rest ; mesopleural furrow 

 complete, moderately wide and deep ; a narrow furrow runs down from the tegulae ; 

 median segment with a gradual rounded slope, without a basal area, and with a mode- 



