of New Exotic Aculeate Hymenoptera. 81 
a very narrow yellow border; the margin of the sixth segment tes- 
taceous. $. 
From the Brazils. 
In my own Collection. 
Obs. — I believe this to be the first instance of this genus recorded 
as Brazilian. 
Family. VESPID/E, Leach . 
Genus. Paragia,* Shuck. Plate VIII. fig. 3. 
H ead transverse, stemmata placed in a triangle on the vertex ; 
eyes oval, lateral, distant ; antennae geniculated, inserted above 
the clypeus near the middle of the face, and at equal distances 
between the eyes ; clypeus slightly convex ; labrum con- 
cealed ; mandibles robust, tridentate, the external tooth the 
largest. 
Thorax nearly square ; the prothorax making a wide curve back- 
wards to the tegulae, its anterior angles acute; the tegulae placed 
about the middle of the thorax ; an impression of the shape of a 
lyre upon the mesothorax, with another longitudinal and cen- 
tral; scutellum subquadrate, very prominent ; metathorax ab- 
ruptly truncated ; anterior wings with one marginal cell, and 
two submarginal cells, the first of the latter very long and nar- 
rowing towards the second, which is nearly oval, and receives 
both the recurrent nervures ; the legs short, and somewhat 
robust ; all the tarsi longer than the tibiae, the anterior pair 
furnished beneath with pul villi ; the terminal claws minute, 
and the apex of all the tibiae furnished with a pair of small 
calcaria. 
Abdomen elliptical, abruptly truncated at its base. 
Obs.— This genus I have named in allusion to its deceptive habit, 
which is precisely that of a Vespa ; but, upon closer inspection, its 
distinctive characters are exhibited, which are very remarkable, 
and form another exception to the general characteristic of the 
family, even if Ceramius be removed from it, which I think ought 
to be. The distinctions are its ovate, not reniform eyes, and its 
two submarginal cells. In this latter character it however partici- 
pates with the Masaridae. The structure of its mandibles and an- 
terior tarsi induce me to consider it as social, and it is possibly the 
New Holland analogue of the genus Vespa , which I have not yet 
discovered to come from that place ; but even, if so, it must be of 
unfrequent occurrence, as mine is the only specimen I have hitherto 
* From na^a.yii,fallo. 
G 
VOE. II. 
