60 MR. F. SMITH ON HYMENOPTEROUS INSECTS 
rufo-piceous at their apex. Thorax finely and closely punctured, 
and, as well as the head, subopake; the prothorax and scutellum 
bordered with short, fine, downy, pale pubescence ; the wings subhyaline 
and iridescent ; the tegule pale rufo-testaceous; the legs with a pale 
glittering pubescence, the tarsi pale ferruginous. Abdomen ovate, 
very convex, and wider than the head and thorax, the apical margins 
of the segments bordered with short white pubescence, widely inter- 
rupted on the first and second segments ; the abdomen is shinmg and 
very finely punctured. 
Hab. Gilolo. ; 
Fam. APID/, Leach. 
Gen. Mraacuttn, Latr. 
1. Megachile Alecto, Smith, Supp. Journ. Proc. Linn, Soc.v. 132. 
Hab. Gilolo; Dory; Ternate. 
2. Megachile Lachesis, Smith, Supp. Journ. Proc. Linn. Soc. v. 133. 
Hab. Gilolo; Bachian; Amboyna. 
3. Megachile Clotho, Smith, Supp. Journ. Proc. Linn. Soc. vy. 134. 
Hab. Gilolo; Bachian. 
4, MEGACHILE ATERRIMA. M. aterrima, pube nigra dense vestita; 
thorace transversim rugoso ; alis hyalinis, apice marginalibus fuscis. 
Female. Length 1] lines. Black ; the pubescence entirely black; the 
head rugose; the mandibles stout and finely punctured. Thorax ru- 
gose, transversely so in front; the posterior margin of the scutellum 
rounded ; the wings hyaline, the nervures black, the apical margins 
with a fuscous border. Abdomen with a dense black pubescence be- 
neath, above bluish black towards the base, finely punctured. 
Hab. Celebes (Tondano). 
5. MEGACHILE PLACIDA. WM. nigro-pubescens; facie dense flavo- 
albo pubescente, abdominis segmentis marginibus fulvis ; alis fuscis. 
Male. Length 5 lines. The head, thorax, and legs clothed with black 
pubescence, that on the face is yellowish white; the wings slightly 
fuscous, with their base hyaline. The margins of the first and three 
following segments of the abdomen fringed with fulvous pubescence, 
the fifth and following segments entirely fulvous; the auterior tarsi 
and the femora and tibiz beneath rufo-testaceous, their coxe armed 
with a stout spine. 
Hab. Gilolo. 
6. MEGACHILE LABOoRIOSA. M. nigra, pube nigra vestita ; abdomine 
segmentis apicalibus pube fulva vestitis ; alis nigro-fuscis. 
Male. Length 5 limes. Black, and clothed with black pubescence, the 
fourth and following segments of the abdomen with fulvous ; a tuft of 
white pubescence between the antenne, and the anterior margin of the 
clypeus fringed with white pubescence ; the wings dark fuscous. 
Hab, Ternate. 
