48 E. T. CRESSON. 



spiracles ; the four nude spots on second segment above are smaller and pale yel- 

 low, the posterior pair rounded and not at all transverse; otherwise much the 

 same. 



Coruraba. This agrees with Gerstaecker's description of bivittata 

 quite as well as the preceding species, except in the shape and color 

 of the nude spots on the second abdominal segment, no mention 

 being made of the notch on sides of thorax. 



74. M. diiplicata Gerst. (Archiv. f. Naturg., xl, p. 72).— ? .—Length 14- 

 16 mm. — Same form and sculpture as bivittata. Black, the pubescence black; 

 head ochraceous above, with a broad central black stripe ; mouth and cheeks 

 with pale ochraceous pubescence; mesothorax with a broad oblique stripe on 

 each side, a narrow stripe on each side of metathorax, and a large spot on lower 

 margin of flanks, dense ochraceous pubescent; legs clothed with ochraceous 

 pubescence, calcaria pale ; first abdominal segment at sides, double line on ex- 

 treme side of second segment, spot on lateral apical corners of segments 2-4, 

 and a spot on apical middle of segments 2 or 3-5, silvery-ochraceous pubescent; 

 second segment above with four dark sanguineous, smooth, shining, sparsely 

 punctured spots, the posterior pair rather large, somewhat transversely sub- 

 quadrate, the basal pair smaller and rounded ; venter with apical margin of seg- 

 ments 2-4 densely fringed with silvery pubescence. 



Sao Joao do Monte Negro. Two specimens. The ochraceous 

 pubescent stripe on mesothorax is shaped much as in ceviulata, but 

 in that species it is continuous with that on metathorax. 



75. M. ocellaris Klug (Nova Acta Cses. Nat. Cur. x, p. 321, pi. xxiii, fig. 9). 

 J. — Length 3-6 mm. — Small, form much the same as in demissa (No. 61), which 

 it very much resembles, but may be separated as follows: the head above has a 

 large black median spot ; the two posterior red spots on second abdominal seg- 

 ment above are large and rounded, not transverse, and there are two oblique 

 ovate spots at base (sometimes mere dots in demissa), and there is a short silvery- 

 pubescent stripe on apex of abdomen, composed of a spot on apical middle of seg- 

 ments 3-5. 



Chapada. Two specimens. 



This and the eight preceding species, having the head more or 

 less ornamented with silvery pubescence, closely resemble each 

 other in the markings of the thorax and abdomen, and may be 

 separated as follows : 



Thorax with fulvous or golden pubescent stripes 67. chapada. 



Thorax with two silvery or pale ochraceous pubescent stripes. 



Head black, with a pale pubescent spot on vertex between the eyes. 

 Second segment of abdomen with the red or yellow spots subquadrate and 

 the basal ones elongate-ovate; lower part of flanks of thorax broadly 

 silvery pubescence 68. crixa. 



