AMERICAN HYMENOPTERA. 425 



aciculated, the mesopleurae strongly punctured, with an oblique row of 

 striae down the middle. Metapleurae more closely and strongly punc- 

 tured. Abdominal petiole nearly as long as the basal joint of the 

 hind tarsi. 



Mendoza, December to March. 



The size of the black and yellow markings may vary ; there 

 may be a black line down the middle of the scutellum. 



SMICRA Spin. 

 7. Smicra ornatifrons sp. n. 



Black, the apical third of the scape and the basal joint of the flagel- 

 lum rufous, an irregular triangular spot (the narrowed end below) on 

 the lower half of the front touching the eyes, the lower two-thirds of the 

 antennal keel, a curved line along the apex of the pronotum, a slightly 

 wider line on the apex of the scutellum, tegulse, the upper side of the 

 abdominal petiole, broad apical complete lines on the apices of the 

 second and third segments and narrow interrupted ones on the fourth 

 and fifth bright lemon-yellow. Four front legs rufous, their coxae and 

 trochanters and base of femora broadly (the anterior more broadly 

 than the middle pair) black ; the hind legs black, on the upper part of 

 the femora, commencing on the upper edge at the apex of the basal 

 third and ending lower down (?'. <?., it has an oblique slope) at the 

 beginning of the apical fourth, where it is dilated, on the lower edge 

 of the basal three-fourths is a line broad at the base and apex, narrow 

 in the centre through the black color being roundly dilated down, the 

 basal dilatation being longer, on the apical third of the inner side is 

 a square spot, the basal femoral tooth and an irregular spot near 

 the base of the hind tibiae on the outer side, yellow. There are at 

 least ten femoral teeth ; the basal distinct, the apical closely pressed 

 together. Apex of scutellum distinctly margined, the centre narrowed 

 the sides lobed. Sides of the head along the eyes finely longitudin- 

 ally striated, the striae intertwining. Occiput closely minutely punc- 

 tured. Thorax above, closely, strongly punctured, the parapsidal fur- 

 rows deep. Metanotum irregularly reticulated. Pro- and mesopleurae 

 opaque, shagreened, appearing (especially the propleurae) as if finely 

 striated. Head and thorax thickly covered with white pubescence. 

 9 and &. 



Mendoza, December. 



There seems to be a small spur on the middle tibiae, and 

 this makes the species a Smicra as defined by Ashmead in 

 " Memoirs Carnegie Museum," i., p. 250, the other genera 

 wanting this spur. 



TRANS. AM. ENT. SOC, XXXV. (54) DECEMBER, 1909 



