82 HTMENOPTEEA. 



than the third, the third and fourth joints subequal, the third to the seventh longer 

 than broad, becoming gradually shorter, the last joint longer than the preceding. Eyes 

 distinctly converging towards the clypeus ; the hinder ocelli separated from each other 

 by about the same distance that they are from the front ocellus. Front and vertex 

 sparsely punctured, covered with a golden or fulvous pubescence and with some fuscous 

 hairs ; the frontal furrow very fine, almost obsolete. Clypeus convex, margined and 

 waved at the apex, densely covered with silvery pubescence. Thorax impunctate ; the 

 mesonotum opaque, covered with a short, close, brownish-fulvous pubescence ; pleura? 

 shining, sparsely pubescent; median segment densely covered with a thick fulvous 

 pile ; mesonotal furrow curved, deep ; mesopleural furrow almost complete ; there is a 

 curved, narrow, semioblique furrow on the metapleurae, reaching from a little above the 

 middle to the bottom ; the furrow running down from the spiracle is of the same width 

 and form, but longer ; area on the median segment impunctate and without keels, the 

 central furrow not reaching the base, the lateral furrow shallow, not striolate, running 

 into the apical central furrow. Petiole three-fourths of the length of the second 

 segment, becoming gradually thickened towards the apex ; the second segment narrowed 

 at the base, impunctate, clothed with very short pubescence ; the third segment at the 

 base glabrous, shining, the rest of it and the other segments densely covered with short 

 fulvous pubescence ; pygidial area coarsely longitudinally striolate and sparsely covered 

 with a stiff silvery pile. Antennae reddish; the basal joint yellow beneath, the apical 

 joint more or less blackish on the lower side. The clypeus, the inner orbits of the 

 eyes to the antennae, the base of the mandibles, the margin of the pronotum, the 

 tubercles, a spot behind them, a broad line on the mesonotum along the tegulae, the 

 hinder margin of the scutellum, and two large oblong marks on the median segment, 

 are yellow. Petiole reddish, the sides and apex broadly yellow ; the second segment 

 fulvous-red, the apex yellow, the base black ; the other segments blackish, obscure 

 yellow at the apex ; pygidial area obscure rufous ; the ventral segments black at the 

 base, then rufous, then yellow, the rufous running into the yellow. Legs reddish, 

 inclining to yellow ; the coxae, trochanters, the greater part of the femora, and a line 

 on the apical part of the hinder tibiae, black. Wings smoky, with a violet-fulvous 

 tinge, the apex paler ; the costa and stigma rufous ; the nervures reddish at the base, 

 fuscous at the apex. 



The male differs from the female in having the yellow on the abdomen clearer, and 

 the flagellum of the antennae for the greater part black above, beneath obscure red ; the 

 joints of the flagellum thicker and broadly projecting on the underside, especially the 

 seventh to the twelfth ; the apical abdominal segment smooth and impunctate, sparsely 

 pubescent. 



In both sexes the mesonotum is sometimes obscured with reddish. 



G. fuscipennis is closely allied to G. alticola, but is smaller and more slenderly 

 built, the head especially being smaller and not so stout ; and also has the frontal 



