136 HYMENOPTEEA. 



sides and apex covered rather densely with fulvous-golden hair. Petiole nearly as long 

 as the thorax, curved, furrowed deeply above, and bearing rather long pale fulvous 

 hair. Pygidial area elongated, sharply rounded at the apex, with a sharp stout keel 

 in its centre. Legs stout ; the coxae and a line on the underside of the femora (that 

 on the posterior pair broad) black ; the femora sparsely, the tibiae and tarsi densely, 

 covered with whitish hair, that on the tibiae erect and resembling bristles on the 

 hinder edge. Metatarsus curved at the extreme base ; the large spur of the tibiae 

 (which is dilated at the base) reaches to its middle. The second cubital cellule is a 

 little more than half the length of the third ; the first recurrent nervure is received in 

 the middle of the cellule, the second at the apex. 



^ 3. Mimesa striolata. (Tab. VIII. fig. 17, ? .) 



Nigra, tarsis pallidis, flagello antennarum subtus fulvo ; capite punctata ; mesonoto striolato, segmento mediali 



reticulato ; alis hyalinis, stigmate fusco. $ . 

 Long. 10 millim. 



Hdb. Mexico, Amula 6000 feet, Omilteme 8000 feet, Chilpancingo 4600 feet, 

 Xucumanatlan 7000 feet, all in Guerrero, Atoyac in Vera Cruz (R. H. Smith). 



Eyes almost parallel. Ocelli in a triangle. Front broadly projecting between the 

 antennae, the projection broader than long. Clypeus convex; the apex almost trun- 

 cated. There is a furrow behind the ocelli, and external to them a much wider one ; 

 a furrow also runs down from the ocelli to the antennae. Front and sides of the vertex 

 on either side of the ocelli finely rugosely punctured ; behind the ocelli and along the 

 top of the eyes almost impunctate. Below the antennae the head is densely covered 

 with silvery pubescence, hiding the surface, above them it is sparsely haired. 

 Antennae stout, slightly thickened towards the middle ; the third joint not one 

 quarter longer than the fourth; the joints 2-7 and the terminal one rufous, the 

 others fuscous beneath. Thorax short, about twice the length of the head ; meso- 

 notum coarsely and closely striolated ; scutellum striolated, intersected with punctures ; 

 mesopleurae almost impunctate ; median segment irregularly rugosely punctured, the 

 base in the middle widely reticulated ; there is a fringe of golden-silvery hair on the 

 pronotum, and the sides of the median segment at the apex are densely covered with 

 long silvery hair. The petiole is nearly as long as the thorax, narrow, shining, 

 cylindrical, slightly curved, and bare, laterally deeply and widely furrowed; it is 

 articulated to the lower part of the second segment. Abdomen shining, impunctate ; 

 the second and third segments slightly, the other segments densely, covered with 

 rather long silvery pubescence. Pygidial area narrow, keeled down the middle, 

 impunctate. Wings short ; second cubital cellule a little narrowed at the top, receiving 

 the recurrent nervures about the basal third and apical fourth, not half the length of 

 the third cellule above and beneath ; third transverse cubital nervure bent above the 

 middle. In the hind wings the transverse median nervure is received beyond the 



