1865.] 4L>(« 



the third suhmarginal cell, the apex broadly truncate; the three sub- 

 marginal cells distinctly defined, the first longer, and the second as long 

 as the marginal ; the second much narrowed towards the marginal, and 

 receiving the first recurrent nervure before the middle ; the third sub- 

 marginal cell subtriangular, much narrowed beneath so that the side 

 nervures become almost confluent with the second recurrent nervure. 

 Legs black, punctured, clothed with black pubescence. Abdomen ovate, 

 gradually narrowed to the tip, closely and rather finely punctured ; 

 apical margin of the large basal segment, and all the remaining seg- 

 ments, as well as the lateral apical fringe of the ventral segments, 

 densely clothed with long rufo-ferruginous pubescence, the remainder 

 with black pubescence, sparse on the venter which is shining; the 

 node rather larger than in the 9 , coarsely punctured, with a large flat- 

 tened, subacute tooth beneath ; second ventral segment somewhat con- 

 cave on the middle, on which there is a deep ovate puncture. Length 

 10 lines; expanse of wings 16J lines. 



Two 9 , one S , specimens. Easily recognized by the large size, the 

 jet black color, with most of the abdomen above rufo-ferruginous. This 

 species occurs also in Texas. 



2. Mutilla macra, n. sp. 



Slender, black, densely pilose ; abdomen petiolate, the large basal segment 

 above orange-yellow; wings blackish, third submarginal cell obsolete. 



Male. — Elongate, rather slender, black, with long, dense, coarse, 

 black pubescence, and close, rather rough punctures; eyes small, round, 

 entire and very convex; mandibles rufo-piceous at base; antennae black, 

 the flagellum sericeous. Thorax slightly narrowed behind, the meta- 

 thorax rounded, somewhat abrupt behind and reticulate with coarse 

 punctures. Wings blackish, with two or three pale streaks beneath the 

 stigma; marginal cell broadly truncate at tip, not exceeding the tip 

 of the third submarginal cell; two distinct submarginal cells, the first 

 about as long as the marginal, the second a little short, much narrowed 

 towards the marginal and receiving the first recurrent nervure near 

 the base; third submarginal cell subrhomboidal, indistinctly defined, 

 the outer nervure being obsolete. Legs black, with black pubescence. 

 Abdomen petiolate, ovate, much narrowed towards the tip, black, with 

 long, dense, black pubescence above, shining beneath ; large basal seg- 

 ment above orange-ferruginous, with pubescence of the same color, and 

 close, rather deep punctures; the node rather elongate, swollen at tip. 

 coarsely rugose, the base depressed, with a short stout tubercle on each 

 side; venter shining and sparsely pubescent, the second segment closely 

 punctured. Length 5 lines; expanse of wings 7 lines. 



