472 APiD^. 



b' . PoUen-brnsh golden-yellow. 



a^. Lengtli 17-20 mm M. fraterna, p, 478. 



U\ Lengtli 1 1-14 mm M. ' quartince , p. 478, 



c'. Pollen-brush rich ferruginous red , . M. mystacea, p. 479. 



G. Abdomen with basal segment clothed with 

 snow-white, sometimes pale yellow long 

 pubescence, rest of abdomen with 

 sparse bhtck pubescence. 



a. Pollen-brush entirely bright fulvous . . M. conjimcta, p. 479. 



b. Pollen-brush entirely jet-black M. diyuncta, p. 480. 



c. Pollen-brush fulvous in niiddle,|rest black M. relata, p. 480. 



D. Abdomen with basal 1, 2, or 3 segments 



clothed with fulvous pubescence, rest 

 with black. 



a. Clypeus tuberculate in middle anteriorly. M. monticola, p. 480. 



b. Clypeus not tuberculate anteriorly. 

 a'. Head with black pubescence. 



«^. Thorax with black or fuscous 



pubescence M. badia, p. 481. 



b"^. Thorax with fulvous pubescence . . M. bhavancs, p. 481. 

 b'. Head with fulvous pubescence. 



«-. Anteimse and legs fulvous red .... M. dimidiata, p. 482. 

 6^. Antennae and legs black. 



a^. Length 17-18 mm M. velutina, p. 482, 



b"^. Length 12-1.3 mm M. ceylonica, p. 482. 



E. Abdomen with basal one or two segments 



with fulvous pubescence, remainder cili- 

 ated or banded with same or with white 

 pubescence. 

 a. Pubescence rich fulvous red. 

 a'. Pollen-brush white. 



d^. Wings flavo-hyaline, fuscescent 



along apical margin M. Innata, p. 483. 



62. "Wings dark fuscous with a rich 



purple effulgence, base hyaline . . M, umbripe^inis, p. 483. 



b' . Pollen-brush pale fulvous M. ampidatu, p. 484. 



h. Pubescence pale fulvous. 



a'. Length 17 mm M. penetrata $ * p.484. 



b'. Length 12 mm M. buddJmS*, p. 484. 



c. Pubescence bright yellow M. vestita, p. 485. 



F. Abdomen with transverse bands on all 

 segments above of white pubescence. 



a. Pollen-brush white. 



a'. Punctures on disc of mesonotum coarse, 

 running into transverse strise. 

 a^. Head and thorax with white 



pubescence M. cephalotes, p. 485. 



6^. Ilead and thorax with fulvous 



pubescence M.faceta, p. 486. 



b'. Punctures on disc running into striae. 

 a^. Head and thorax with fulvous 



pubescence . , . . , M. griseopicta, p. 486. 



* Probably the two sexes of one species. 



