VI 
APPENDIX 
narrower than the thorax, somewhat flat and transverse, the mandibles smooth and shining, the 
clypeus and front finely punctured, the latter with a very fine vertical carina ; eyes large, con- 
vergent anteriorly ; thorax very broad and massive, the mesonotum slightly convex and finely 
reticulated ; the scutellum, post-scutellum, and median segment very coarsely reticulate, the last 
posteriorly, abruptly truncate and strongly margined ; wings hyaline and irridescent, nervures 
testaceous, tegulae castaneous with a light yellowish spot in the centre ; abdomen, except for the 
sparse covering of black hairs, smooth and shining, especially on the basal segment. 
Lengthy 7-8 mm. ; Exp.y 13 mm. 
Habitat, Biserat, Jalor. 
This species resembles B. intj'icatuSy Vachal, but is much more stoutly built and has no 
white pubescent bands on the abdomen. 
Genus Anthiclium, Fabr. 
Anthidium minutissimum, sp. nov. 
9 . Black, the mandibles, the clypeus, sides of the face as high as the base of the antennae, 
an abbreviated line behind the eyes above, a spot on the sides of the pronotum, the anterior 
lateral angles of the mesonotum, a broad margin posteriorly to the scutellum, a large spot on each 
side of the basal abdominal segment, a line on the third segment widely interrupted in the 
middle, a line on the fourth and fifth and the whole of the apical segment above yellow ; the 
abdomen beneath castaneous, paling to yellow on the apical margins of the segments ; legs, 
dark castaneous, the tibiae and tarsi of the anterior and intermediate, and the tarsi only of the 
posterior legs, yellow ; wings, hyaline and irridescent, nervures dark brown, tegulae black. Head, 
thorax, and abdomen very densely punctured and opaque, the punctures on the abdomen some- 
what finer and more shallow than on the thorax. 
Lengthy 9,4-4’! mm. ; Exp.y 7*5 mm. 
Habitat. Biserat, Jalor. 
Genus Melipona, Illiger ; Subgenus Trig^Ona 
Melipona castanea, sp. nov. 
Worker. Light rather dull chestnut, shaded with fuscous black on the vertex of the head 
and the mesonotum, the margins of the abdominal segments broadly dark brown, the vertex, the 
margins of the mesonotum and scutellum, the thorax beneath and on the sides, the margins of 
the tibiae and tarsi, the apical three segments of the abdomen above and the apical four beneath 
covered with very stift'long black hairs ; the clypeus and face in front, and the median segment 
posteriorly with very short somewhat dense light brownish pubescence, which in one specimen 
covers also the mesonotum, the pro-, meso-, and metapleurae ; wdngs, hyaline yellowish for half 
their length from base. Head broader than the thorax, clypeus with its anterior margin trans- 
verse ; mesonotum slightly convex ; scutellum gibbous, rounded, and projecting posteriorly over 
the median segment ; abdomen broader than the thorax and about half as long as the head and 
thorax united. Head, thorax and abdomen beneath the pubescence smooth, polished and 
shining. 
Lengthy worker, 7 to 9 mm. ; Exp.y 16 to 20 mm. 
Habitat. Bukit Besar, Nawngchik. 1,500 to 2,500 feet. 
