60 E. T. CKES80N. 



tubercle on disk, and a deep transverse fovea at base; metathorax with pale 

 silky hair, rounded above and at sides, reticulated, with two long longitudinal 

 carinse from base nearly to middle, forming an elongate narrow area, from which 

 diverge on each side an oblique carina to apex, on each side of this area at ex- 

 treme base a transverse patch of pale ochraceous pubescence ; tegulfe smooth, 

 jjolished, piceous, paler on depressed outer margin, sometimes fusco-testaceous, 

 with margin pale testaceous. Wings subhyaline, pale fuscous on apical half and 

 hyaline at base ; marginal cell large, broad, sublanceolate, truncate at tip; first 

 and second submarginal cells elongate and about equal in length and size; second 

 submarginal pointed at base, receiving the recurrent nervure at about the mid- 

 dle, the first and second transverso-cubital nervures widely separated on mar- 

 ginal ; third submarginal complete, irregularly subquadrate, slightly narrowed 

 above. Legs with pale glittering pubescence, sparse on femora; tarsi pale golden 

 pubescent; calcaria white. Abdomen ferruginous, shining, irregularly punc- 

 tured, with pale scattered pubescence at base and sides, and over second segment ; 

 the three or four apical segments more or less black ; fiist segment rarely black, 

 depressed, dilated at apex which is feebly constricted, and conforming in out- 

 line with base of second segment, the latter smooth, polished and impunctured 

 on disk; apical middle of second and remaining segments clothed with black 

 pubescence, more obvious when viewed laterally. 



Chapada. This may be lucidiventris Gerst., which is said to be 



the S of phalerata Klug. 



2. M. escada %. — Length 14 mm.— Form robust, black, with segments 2-6 

 of abdomen ferruginous, the pubescence pale, and dense yellowish on head, protho- 

 rax, pleura and base of metathorax, some black hairs on vertex. Eyes emar- 

 ginate; cl.vpeus with an obtuse nasutiform process at base. Prothorax rounded 

 anteriorly; mesothorax confluently jjunctured, sculptured nmch as in mucapa, 

 the pubescence black ; scutellum convex, a smooth polished tubercle on disk and 

 a deep fovea at base, the pubesence black at base, long and white at apex ; meta- 

 thorax rounded above, reticulated, sparsely clothed with long pale silky hair, 

 more dense laterally, above pale tomentose, a dense transverse patch of pale ochra- 

 ceous pubescence at extreme base, the long naiTow area at base as in mucapa ; 

 teguljB black, with black pubescence. Wings fusco-hyaline, darker at apex, pale 

 at base; neu ration as in macapu. Legs with pale glittering pubescence; calcaria 

 pale. Abdomen ferruginous, shinitig, feebly punctui-ed ; first segment shaped as 

 in macapa, and, except apical margin, black with scattered pale hair ; terminal seg- 

 ment black, with black pubescence; apical margin of segments 2-6 with golden- 

 fulvous pubescence, more distinct when viewed laterally ; venter with pale pubes- 

 cence, the second segment deeply and sparsely punctured. 



Rio de Janeiro (November). One specimen. A very fobust 

 form, and may be identical with termmalis Gerst. 



3. W. manga %. — Length 8.5 mm. — Slender, blac-k, the abdomen except 

 two apical segments ferruginous; head prothorax and pleura thickly clothed 

 with pale ochraceous pubescence. Clypeus with a small acute nasutiform tooth 

 at base ; eyes emarginate. Prothorax round anteriorly; mesothorax distinctly 

 punctured, sculptured much as in macapa, the pubescence black ; scutellum and 



