BRAZILIAN MUTILLA. 19 



This may be Gonnellei Andre, but no mention is made in the 

 description of the rather hirge triangular silvery mark on sides of 

 second abdominal segment, and the median stripe is not interrupted. 



9. M. cretlula J. — Length 8 mm. — Densely confluently punctured ; head 

 transversely quadrate, broader tlian thorax, scarcely narrowed behind eyes, pos- 

 terior angles rounded ; eyes round, convex, smooth and polished ; thorax short, 

 broad, fiddle-shaped, lateral margins dentate; metathorax rounded above, ab- 

 ruptly declivous behind, flanks deeply excavated, smooth and polished ; abdomen 

 ovate, about as long as head and thorax together, first segment broad at apex, 

 gradually v?idened posteriorly and conforming in outline with base of second 

 segment; apical segment flattened at apex and minutely granulate; venter shin- 

 ing, closely punctured. 



Head black, opaque; cheeks and an arcuate band on head above, silvery in 

 certain lights; mandibles except tips, scape of antennae and thorax entirely, fer- 

 ruginous; legs brown, with pale pubescence; calcaria pale; abdomen black, 

 opaque, apical margin of segments above and beneath fringed with silvery pu- 

 bescence ; a rather broad silvery pubescent band across middle of second segment 

 above; first segment beneath ferruginous. 



Santarem (November). One specimen. 



10. -W. crepera J. — Length 8 mm. — Densely confluently punctured ; head 

 not much extended behind ej'es, rounded ; eyes unusually large, round, convex, 

 smooth and polished : thorax fiddle-shaped, with a sharp prominent erect tooth 

 on each side at base of metathorax. which latter is rounded above, abruptly de- 

 clivous behind, lateral margins denticulate, the flanks deeply excavated, smooth 

 and shining; abdomen oblo!ig-ovate, about as long as head and thorax together, 

 first segment broad at apex, gradually widened behind and conforming in out- 

 line with base of second segment; apical segment flattened, margined laterally 

 and very minutely roughened ; venter shining, closely punctured. 



Head black, opaque, with long sparse hair, pale on front, cheeks silvery serice- 

 ous, mandibles ferruginous, except tips; thorax entirely ferruginous, with black 

 pubescence, longer and pale on metathorax ; legs piceous, ferruginous at bpse, 

 with pale pubescence, calcaria white ; abdomen black, the pubescence above short 

 and black, more or less pale at sides and beneath, basal segment above ferruginous 

 at base, clothed with long rather dense pale pubescence; second segment with an 

 obscure red band across the middle, slightly narrowed ou disk and covered with 

 short silvery pubescence; abroad silvery band on segments 3-5; beneath, the 

 first and base of second segments ferruginous. 



Benevides (July). One specimen. Compared with crednla, this 

 species is narrower in form, with much larger and more prominent 

 eyes ; thorax narrower, with a prominent erect tooth on each side 

 behind the middle, and the abdomen is differently ornamented, 

 having an obscure red band across the middle of second -segment 

 above. 



11. M. paiiliila 9- — Length 5 mm.— Very small, elongate, narrow; head 

 slightly broader than thorax, transverse; eyes round, convex, polished; thorax 



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



