192 HYMENOPTERA. 
margins darkest, the nervures ferruginous; the extreme apex, 
in some examples subhyaline ; a minute hyaline spot at the 
base of the second discoidal cell; the tibiz and tarsi rufo-fer- 
ruginous, tips of the claws black. Abdomen: the basal seg- 
ment entirely, and the apical margins of the four following, 
having a band, and the fifth and sixth segments entirely covered 
with golden pile; the apex rufo-testaceous and clothed with 
fulvous pubescence. 
Hab. Brazil (Para; Santarem; Tapajos). (Coll. H. W. Bates.) 
Small specimens of this species have the lateral tubercles and 
central produced point nearly obsolete, the antenne of a brighter 
colour, and the entire insect nearly covered with brilliant golden 
effulgent pile. 
12. PEpSIS ALBOCINCTA. B.M. 
Male. Length 15 lines.—Black: the head, thorax on the 
sides and beneath, the legs and abdomen clothed with a deep 
blue pilosity, varying in brightness in different lights ; the thorax 
is black above, the metathorax transversely rugose, having a 
Jongitudinal impressed line down the centre, and covered with a 
scattered long black pubescence; antenne black, with two or 
three of the apical jomts orange; wings very dark fusco-ferru- 
ginous; the second discoidal cell having a minute hyaline spot 
at its base; the apical and posterior margins of the wings white. 
Hab. Brazil (Santarem). (Coll. H. W. Bates.) Columbia. 
The female in the collection of W. W. Saunders, Esq. 
Female. Length 1 inch 9 lines. —This sex has the wings 
margined as in the other sex, the antennz black, the metathorax 
transversely rugose ; the entire insect decorated with a splendid 
changeable blue and green ‘pilosity; the legs thicker than is 
usual in this genus, and densely ciliated with stout spines, the 
posterior tibiz strongly serrated on their outer edge. 
13. PEPSIS FERRUGINIPENNIS. 
Pompilus ferruginipennis, Halid. Trans. Linn. Soc. xvii. 326. 40. 
Hab. Brazil. (Coll. W. W. Saunders, Esq.) 
14. Pepsis FUMIPENNIS. 
Female. Length 16 lines.—Black : the head and thorax with 
an obscure zneous tinge; the seven apical joints of the antenne 
cream-coloured ; the wings smoky hyaline, the anterior pair 
