146 INSECTA. 
Sometimes the abdomen resembles that of Eumenes properly so 
called, in the form of its two first annuli. Such is 
P. morio, Fab.; G. Tatua, Cuv., Bullet. de la Soc. Philom., 
No. VIII; Lat., Gen. Crust. et Insect., I, xiv, 5. Entirely black 
and glossy. Its nest forms a truncated cone like that of the 
nidulans, but it is larger, the bottom is flat, and perforated at 
one of its sides, and the material is coarser. It inhabits Cay- 
enne. 
Sometimes the abdomen is elliptical or borders on an oval. Such 
is the 
P. gallica; Vespa gallica, L.; Panz., Faun. Insect. Germ., 
XLIX, 22. Rather smaller than the Vespa vulgaris; black; the 
clypeus, two dots on the thorax, six lines on the scutellum, two 
spots on the first and second rings ef the abdomen, and their 
superior margin as well as that of all the others, yellow; abdo- 
men bordering on an oval, and with a short pedicle. Its nest 
has the form of a little tapering bouquet, and contains from 
twenty to thirty cells, those on the sides being the smallest. It 
is usually attached to the branch of a shrub. 
Sometimes again the abdomen is ovoid or conical, as in 
P. nidulans; Vespa nidulans, Fab.; Guépe cartonniere, Reaum., 
Insect., VI, xx, 1, 3, 45 xxi, 13 xxii—xxiv. Small; of a silken 
black with yellow spots; posterior margin of the abdominal 
annuli of the same colour. Its nest, which is suspended to 
branches of trees by a ring, is composed of a fine material, and 
_has the form of a truncated cone. The combs, of which the 
number augments in proportion to the population, and some- 
times gives a considerable size to the nest, are circular, but 
concave above and convex underneath, or infundibuliform and 
perforated with a circular hole. ‘They are fixed to the internal 
parietes of the envelope throughout the whole of their circum- 
ference. The lower one is smooth beneath or destitute of cells; 
its opening is the door of the nest. As fast as the population 
increases, these Wasps form a new floor and furnish the inferior 
surface of the old one with cells. 
In the remaining Wasps, the superior portion of the internal 
margin of their mandibles, that which comes after the angle, is as 
long as the other partor longer. The middle of the anterior margin 
pedicle, are true Polistes. Those, in which its second ring is much larger than 
the others, and campanulate, and where the preceding frequently forms a clavate 
pedicle, are Epipones. The G. Tutua belongs to this division, as well as the 
honey-gathering species from Brazil previously mentioned, and the V. nidulans. 
