HYMENOPTERA. 7h 
interrupted on their vertex, a large transverse macula above the 
insertion of the antenni, the scape above and the anterior mar- 
gin of the clypeus, yellow ; the mandibles, and the anterior mar- 
gin of the clypeus narrowly, rufo-piceous. The prothorax has a 
large spot on each side anteriorly, and a smaller spot on each 
side of its posterior margin, a quadrate spot on the disk of the 
mesothorax, a stripe on each side over the teguli, a spot on the 
scutellum, and the sides of the metathorax behind, yellow ; the 
coxe have a yellow spot beneath, the femora are yellow-testa- 
eeous beneath, and more or less so at their apex above; the 
tibize and tarsi are pale rufo-testaceous, yellowish beneath, and 
densely covered with pale testaceous spines ; wings hyaline, the 
anterior pair having a dark fuscous stripe on their superior mar- 
gins. Abdomen shining and iridescent, the first segment having 
a broad yellow fascia, much attenuated in the middle; the second 
an oblong spot on each side at its base, the third a continuous 
fascia at its basal margin, the fourth and fifth a fascia in the 
middle, the latter subinterrupted, yellow; beneath, the three 
basal segments have an angular spot on each side. 
Male. Length 5-6 lines.—Black ; a narrow line along the 
inner orbits of the eyes, the scape in front, a transverse line above, 
the clypeus, the labrum and mandibles, yellow, the tips of the 
latter black ; a line on the posterior margin of the prothorax, an 
interrupted one on the collar, a quadrate spot on the mesothorax, 
the tegulz, scutellum, and post-scutellum, a large ovate spot on 
each side of the metathorax,a spot beneath the wings, a dot behind, 
and the legs, yellow; the coxz and base of the femora black, the 
former spotted with yellow; wings hyaline. The abdomen has 
acontinuous band on the apical margins of all the segments yel- 
low, that on the basal segment produced forwards on each side. 
Hab. Brazil (Santarem). (Coll. H. W. Bates.) 
37. MyZINE NITIDA. B.M. 
Male. Length 5-53 lines.—Black, head closely punctured; a 
line above the insertion of each antenna, another along the lower 
portion of the inner orbits of the eyes, the clypeus, labrum and 
mandibles, yellow, the latter ferruginous at their tips. Thorax 
strongly punctured, very closely on the metathorax, which is 
transversely rugose behind, and has also sometimes a yellow line 
on each side; the prothorax has an interrupted line on the 
collar, a continuous one on its posterior margin, a spot on the 
tegule, another on the disk of the mesothorax, a transverse one on 
the scutellum and post-scutellum, a stripe beneath the wings and 
a dot behind, yellow; the intermediate coxe have a yellow spot 
at their base beneath, and the posterior pair a line behind ; the 
