BRAZILIAN MUTILLA. 79 



with long pale silky hair on sides; on apical half of second and on apical seg- 

 ments the pubescence is black ; beneath, the second segment is strongly and 

 sparsely punctured, shining, and without diseal fovea; segments 2-4 fringed 

 at apex with pale glittering pubescence. 



San tare m. 



42. M. acara % . — Length 8 ram. — Very much like barra, but there is no 

 diseal fovea on second ventral segment; the marginal cell is longer, and the 

 second subinarginal is very much longer than high ; the third submarginal is 

 complete, with the outer nervure faint; legs piceous, with pale pubescence; nar- 

 row apical margin of second abdominal segment, segments 3 and 4 entirely and 

 most of 5, clothed with pale ochraceous pubescence; otherwise like barra. 



Chapada (October). Two specimens. 



43. .'♦I. poinba %. — Length 9 mm. — Small, slender, black. Head with pale 

 glittering pultescence, mixed with black on the vertex, protuberant behind the 

 ocelli, which latter are of the usual size; the eyes round, convex, prominent. 

 Thorax strongly, closely punctured, with short black pubescence above, mixed 

 with pale on prothorax ; the pleui'a and metathorax dense silvery tomeutose; 

 anterior margin of prothorax carinate, anterior angles acute; scutellum convex, 

 lateral teeth short; metathorax reticulated, the pubescence long, pale and silky; 

 no tubercle beneath tegulas. Wings fusco-hyaline, with a brassy reflection ; mar- 

 ginal cell long, lanceolate, pointed at apex; second submarginal short, suhquad- 

 rate, pointed at base, only slightly narrowed towards marginal, receiving the re- 

 current nervure at about the middle, second transverso-cubital nervure straight ; 

 third submarginal cell incomplete. Legs slender, the pubescence and calcaria 

 pale. Abdomen long, slender, petiolate, basal segment narrow, as long as second 

 segment, nodose and constricted at apex, sparsely clothed with pale pubescence, 

 as is also base and sides of second segment, which latter is smooth and polished, 

 impunctate except at tip, clothed with short black pubescence on di.sk and apex ; 

 remaining segments with black pubescence more or less mixed with pale, espe- 

 cially on sides; venter shining, the pubescence sparse and pale; second segment 

 sparsely punctured, without diseal fovea. 



Sautarem. One specimen. This seems allied to tenuis Smith. 



The following species belong to the subgenus Photopsis, and are 

 the only two found in the collection. They are not included in the 

 table given on page 56, etc. 



M. gracilesceiis Smith (Descr. New Spec. Hyra. Brit. Mns. 1879, p. 222). 

 — % . — Length 12 mm — Head black, impunctate, shining, with long sparse pale 

 hair; eyes and ocelli large, prominent, convex ; palpi pale testaceous. Thorax 

 pale honey-yellow, finely punctured, the pubescence long and pale; metathorax 

 reticulated, the basal middle with three long longitudinal carinse. Wings sub- 

 hyaline, nervures testaceous, costa and stigma brown ; marginal cell long, lance- 

 olate, pointed at tip; first submarginal narrow, oblique, the second subquadrate, 



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



