362 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxi. 



Female. — Head rather broad, the cheeks broad, giving a somewhat 

 quadnuigular outline to the head when viewed from above; clypeus 

 somewhat arched hiteralJy, covered with dense golden pubescence 

 extending up on the frons to near the ocelli, particularly at the sides; 

 both plates ])earing many long .golden hairs; anterior margin of the 

 clypeus with a median notch, on each side of which it is slightly emar- 

 ginate, the sides of the notch being slightly prolonged outward beyond 

 the rest of the margin, which is a little rcflexed and pale ferruginous; 

 frons black where exposed to view, with a few punctures and numer- 

 ous long, golden hairs; posterior ocelli quite far apart, but little behind 

 the median ocellus; vertex with a numljer of rather tine punctures 

 and long, golden hairs; an impressed line runs just in front of the 

 ocelli; cheeks above, more than half the width of the eye, narrowing 

 sharply ])elow, slightly golden pubescent just behind the eyes; with 

 tine punctures and long, golden hairs, longer and closer below; antennas 

 more or less ferruginous; scape dull, pale ferruginous to black, with 

 numerous short hairs; pedicel varying similarly in color; filament 

 black, slightl}' glistening at the joints, lusterless between; the first 

 segment longest; mandibles short, three-toothed, the teeth and some- 

 times the base black, the rest ferruginous, with a very few indenta- 

 tions and a few long, golden hairs on the posterior face. 



Thorax. — Collar black, its anterior face quite erect; the dorsal edge 

 evenly rounded laterally, covered more or less closely with golden 

 pubescence; the front and sides and dorsal edge bearing quite numer- 

 ous, long, golden hairs; the posterior face closely appressed against 

 the mesohotum; prothoracic lobe black, with scattered, long, golden 

 hairs and a fringe of dense, short, j'ellow ones behind; mesonotura 

 quite closel}^ rather coarsely punctured, and quite thickly clothed 

 with rather short, golden, and paler hairs; with an anterior, median 

 impressed double line extending back about one-third the length of 

 the plate; scutellum somewhat arched, rather tlat above, i>imctured 

 and clothed a little more sparsel}' than the mesonotum, and with a 

 trace of golden pubescence at the extreme side; postscutellum golden 

 pubescent, with long, yellow hairs; dorsum of median segment quite 

 coarsely, very closely punctured, with traces of transverse acicula- 

 tion in some lights, and thickly clothed with long, golden hairs; lateral 

 groove from the postscutellum to the stigma pronounced; fovea a 

 short, transverse dash, below the angle between the dorsum and pos- 

 terior end, which is coarsel}^, closely punctured, thickly covered with 

 long, golden hairs and with a trace of golden pubescence just above 

 and at the sides from the petiole; a golden pubescent band runs for- 

 ward and upward from the hind coxa below the stigma to the side of 

 the postscutellum; meso- and meta-pleura quite closely but rathe*' 

 finelv punctured, least so between the two, thickl}^ clothed with long, 

 golden hairs; petiole quite long, somewhat curved, black, with numer- 



