APPENDIX. 
123 
legs above is fuscous, that on all the basal joints of the tarsi, be- 
neath, is ferruginous, the calcaria are pale testaceous, and the 
apical joints of the tarsi rufo-ferruginous : the abdomen oblong- 
ovate, at the base is a little fulvous pubescence, and the second, 
third, and fourth segments have a broad fringe of long, pale fulvous 
pubescence ; the apical fimbria clothes the remaining segments, 
and is dense, long, and black. 
Male (length 4 lines). Black: the face clothed with pale 
pubescence, becoming white on the clypeus, which is deeply emar- 
ginate in front, and produced on each side into a sharp tooth ; the 
labium is bidentate ; the mandibles arcuate, ferruginous at their 
tips ; the antennae not quite so long as the head and thorax ; the 
thorax clothed above with thin fulvous pubescence, and beneath 
with white : the tegulae testaceous ; the wings hyaline, their tips 
slightly clouded : the basal joints of all the tarsi are clothed be- 
neath with ferruginous pubescence; the calcaria and apical joints 
of the tarsi rufo-testaceous. Abdomen ovate-lanceolate ; the mar- 
gins of the segments have a very thin marginal fascia of pale pu- 
bescence ; the apex fulvous. 
This species is intermediate between A. rufitarsis and A. ni - 
griceps. The female recently captured at Sandown Bay, Isle of 
Wight; and subsequently both sexes at Folkstone, Kent. 
OsMIA PAKIET1NA. 
Male (length 3 — 3| lines). Head and thorax brassy-black, 
the face below the antennae covered with long white pubescence ; 
on the vertex it is thin and ferruginous : the thorax above clothed 
with ferruginous pubescence ; beneath, and also on the legs it is 
hoary : the antennae as long as the head and thorax : abdomen black, 
finely punctured, at the base a thin fringe of ferruginous pubescence, 
on the rest of the abdomen it is thin, erect, and black ; the apex is 
slightly emarginate ; beneath, the margin of the second segment is 
sinuate, the third is nearly hidden beneath the second, and deeply 
notched in the centre ; the margin of the incisure fringed with ferru- 
ginous hairs ; the fourth is produced, and sinuate in the centre, the 
whole finely punctured. 
