1912] The Pezomachint of North America 121 
Head large, from above rectangular, about twice as wide as thick 
along the median line; surface rather coarsely shagreened. Face swollen 
below the insertion of the antenne, and of a lighter color than the 
vertex. Malar lines distinct, not quite half as long as the face is wide, 
between the lower angles of the eyes. Clypeus not very well defined 
basally, the free margin is almost semi-circular. The antennz are 
short and stout, composed of 17 joints, of which the seventh and 
neighboring flagellar joints are only slightly longer than wide. The basal 
half of the antenne is of a lighter brown colour than the head. 
Thorax distinctly bi-nodose, clothed with a sparse pubescence 
rather coarsely shagreened. The scutellum is absent. The ‘“meta- 
thoracic”’ carina is poorly defined especially medially. The legs are 
stout, not very long, and somewhat lighter in color than the thorax. 
The abdominal petiole is short and evenly widened from the base 
to the apex, which is squarely truncate. The spiracles are not prom- 
inent. The surface is somewhat aciculate and dotted with an out- 
standing pubescence. Remainder of abdomen ovoid, shining, with a 
rather long pubescence. Ovipositor about as long as the petiole, with 
dusky sheaths. 
Observations. Described from a single specimen taken at 
Tucson, Arizona, by H. G. Hubbard. 
This species is similar in general appearance to a small 
nigrellus (Ashm.) but can be at once distinguished by the more 
robust form and shorter antenne. 
Pezomachus maculatus sp. nov. 
Female. Length4 mm. _ Bicolored; ferruginous and black; head and 
abdomen, except petiole, black from above. Thorax mainly ferruginous, 
but with black blotches, especially on the pleuree. Legs piceous with 
lighter colored patches, “‘metathorax”’ abnormally gibbose, indefinitely 
carinate. Thorax and abdomen densely pubescent. 
Fig. 2. Pezomachus maculatus. 
Head from above coarsely shagreened; with small ocelli which are 
placed in a large equilateral triangle. The color is piceous black with 
flecks of dull ferruginous. Antenne long and slender, 20-jointed, apex 
