BRAZILIAN MUTILLA. 71 



bescence ; the metathorax reticulated, depressed, the lateral luargiu 

 more or less angular and sharp, unarmed ; pleura generally with a 

 tubercle beneath teguhe, the latter small and rounded ; the second 

 ventral segment with or without a discal fovea. 



Second ventral segment foveate. 

 Second abdominal segment black. 



Calcaria black Species 25. 



Calcaria pale. 



Pubescence of head and thorax mostly black Species 26-30. 



Pubescence of head and thorax mostly pale Species 31-33. 



Second abdominal segment ferruginous Species 34. 



Second ventral segment not foveate. 



Second segment above with two large yellow spots; calcaria black. ...Species 35. 

 Second segment without yellow spots; calcaria pale. 



Pubescence of head and thorax mostly black Species 36-40. 



Pubescence of head and thorax mostly pale Species 41-43. 



25. M. cuib» %. — Length 12.5 mm. — Black, opaque, the pubescence black; 

 a band at apex of first abdominal segment, and another behind second segment 

 covering apical margin of second and all of the third, pale ochraceous pubescent ; 

 metathorax coarsely reticulated, the pubescence black; scutellum convex, with 

 long black pubescence, lateral teeth very short; a small obtuse tubercle beneath 

 tegulte. Wings violaceous fuscous; marginal cell short, not longer than second 

 submarginal, truncate at apex ; first and second transverso-cubital nervures ap- 

 proximate on marginal; second submarginal receiving recurrent uervure between 

 middle and base; third submarginal more or less incomplete, very much nar- 

 rowed below. Legs black, with black pubescence ; calcaria also black. Ab- 

 domen with basal segment narrow, nodose and broadly subconstricted at apex; 

 second segment minutely alutaceous ; beneath shining, the first segment carinate 

 and toothed near apex ; second segment deeply and sparsely punctured, with an 

 elongate black pubescent fovea on disk; apical margin of segments 2 and 3 more 

 or less fringed with pale pubescence, sometimes only laterally. 



Chapada (April). Two specimens. A very distinct species, the 

 pubescence being entirely black, excepting the two ochraceous bands 

 on abdomen, one on the first, the other behind the second segment. 



26. M. orbauu J,. — Length 12.5 mm. — Black, the pubescence black, having 

 a reddish appearance in certain lights. Clypeus with a few pale hairs; eyes 

 round, convex, polished. Metathorax reticulated, clothed with long pale haii-, 

 reddish at base; no tubercle beneath tegulse ; scutellum flattened, lateral teeth 

 very short. Wings fuscous; marginal cell sublanceolate, truncate at tip, longer 

 than second submarginal which is elongate, narrowed about one-third towards 

 marginal and receiving the recurrent nervure before the middle; third sub- 

 marginal cell incomplete. Legs with pale pubescence, reddish on tibiae aiid 

 barsi ; calcaria white. Abdomen subpetiolate, first segment nodose and densely 

 pale ochraceous at apex, the scattered pubescence long and pale ; second segment 



TKANS. AM. ENT. SOC, XXVIII. JANUARY, 1902. 



