218 



between the frontal carinae and eyes, the rugae diverging 

 behind. Cheeks with coarse, elongate punctures. Mesonotum 

 and epinotum subopaque and rugose-punctate, the rugae 

 irregular on the sides and often transverse on the base of the 

 epinotum ; pronotum and declivity of epinotum smooth and 

 shining, as are also the petiole, postpetiole, gaster, and legs. 

 Antennal scape® and legs with sparse piligerous punctures. 



Body, including the antennae and legs, covered with 

 rather abundant, erect, coarse, yellowish hairs; those on the 

 scapes and tibiae standing off at an angle of about 30° to 45°. 



Yellowish-browm to piceous or castaneous-brown ; append- 

 ages paler ; first gastric segment in pale specimens often 

 darker behind; mandibular teeth black. 



Female. — Length, 10"5-12 mm.; wings, 13-14 mm. 



Head rather small, scarcely longer than broad, sub- 

 rectangular, very slightly broader behind than in front. 

 Antennal scapes reaching about one-fourth their length 

 beyond the posterior border of the head. Thorax large: 

 mesonotum overarching the small pronotum in front, flat- 

 tened behind; seen from above, distinctly longer than broad; 

 scutellum longitudinally impressed in the middle ; base of 

 epinotum sloping, longer than the declivity, the spines long, 

 blunt, directed upward, outward, and backward. Petiolar 

 node compressed anteroposteriorly, its upper border feebly 

 impressed in the middle; postpetiole short, broader than long. 

 Graster large. Wings with large discal cell and only one 

 cubital cell. 



Sculpture resembling that of the worker, but the whole 

 upper-surface of head and cheeks longitudinally rugose, 

 except a small median occipital area which is shining and 

 coarsely punctate, and the clypeus, which is transversely rugu- 

 lose on the sides. Thorax, including the mesopleurae, smooth 

 and shining ; epinotum sharply rugose, the rugae on the base 

 transverse in front, arcuate behind, on the sides irregular 

 above, longitudinal below and extending forward on to the 

 mesosterna. 



Pilositv like that of the worker. 



Colour darker, castaneous ; legs, usually including the 

 coxae, yellowish ; wings distinctly and uniformly infuscated 

 throughout, radial vein and apterostigma dark-brown, 

 remaining veins paler. 



Male . — Length, 5-6 mm. ; wings, 6-6'5 mm. 



Head, excluding the eyes, distinctly longer than broad, 

 convex behind and above, not broader behind than in front, 

 its occipital border with a pronounced, strongly-reflected 

 margin. Cheeks very short; eyes large and convex. 



