BRAZILIAN MUTILLA. 43 



gin of these segments densely fringed with silvery pubescence; apical segment 

 sometimes entirely black, the pubescence at the sides generally more or less 

 pale; venter with long thin pale Imir, more dense on apical margin of segments. 



Chapada. Common. Closely resembles demissa; but that spe- 

 cies has no silvery spot on apical middle of segments 2 and 3 ; the 

 smooth spots towards apex of second segment in that species are 

 transversely square, not at all oblique, and are of a blood red color. 



61. HI. deiuis«!«a 9.— Length 4-8 mm.— Very much like latevittatn, but 

 diflFers as follows: the head is more golden, the pubescence more dense, the sides 

 of first abdominal segment is broadly silvery, the two smooth spots towards apex 

 of second segment are transversely quadrate, not at all oblique, and blood-red in 

 color; the two spots on basal margin are either very small or entirely wanting; 

 only segments 4 and 5 have a silvery pubescent spot on apical middle above. 



Chapada. 



62. Ifl. atripes Smith (Brit. Mus. Cat. Hym., iii, p. 45).— 9-— Length 

 15-20 mm. — Head and thorax rugose ; head not broader than thorax, cheeks 

 longitudinally carinate; eyes rounded, very convex; thorax elongate, narrowed 

 and subcompressed posteriorly, slightly narrowed anteriorly, the anierior nngles 

 subacute; lateral margin dentate, rather deeply notched on each side in front of 

 the prominent .stigmatic tubercles, and anterior to the notch a prominent obtuse 

 tubercle ; metathorax rounded above ; the tlanks transversely excavated beneath 

 the notched sides ; the first abdominal segment transversely nodose and subcon- 

 stricted at apex ; second segment above with scattered punctures, the nude spots 

 polished and rounded or subquadrate, the basal two smaller; second ventral seg- 

 ment deeply and sparsely punctured, polished. 



Opaque velvety-black, witli black pubescence; the extreme lateral margin of 

 second abdominal segment, a spot on lateral apical corners of segments 2-4 and a 

 narrow line on apical middle of segments 4 and 5, pale golden or silvery pubes- 

 cent ; legs with black pubescence, calcaria fuscous or black ; the four nude spots 

 on second segment above orange-ferruginous or dark red. 



Santarera ; Mararu (April). Probably the same as 4^ pustulata 

 Klug. 



63. M. 4-iiotata Klug (Nova Acta Cses. Nat. Cur., x, p. 316, pi. xxiii, fig. 3). 

 — 9- — Length 16-20 mm. — Slender; head transverse; not broader than thoiax ; 

 eyes rounded, very convex ; thorax elongate, gradually narrowed to apex, deeply 

 notched on each side of mesothorax posteriorly, anterior to which is a prominent 

 obtuse spine, the metathoracic stigmatic tubercles prominent; the metathorax 

 rounded above ; subcompressed laterally; first abdominal segment small, narrow, 

 nodose and subconstricted at apex ; second segment with the four nude shining 

 spots irregularly rounded or subquadrate, sparsely punctured, the posterior pair 

 very large, the anterior pair smaller; second ventral segment shining, spaisely 

 and deeply punctured, slightly pinched and longitudinally carinate on basal 

 middle, the basal segment with a prominent median carina. 



Black, with erect black pubescence ; the scape golden sericeous ; a band across 



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



