38 E. T. CRESSON, 



anterior angles of thorax spinose, and on each side at base of mesothorax a 

 prominent subacute spine; first segment of abdomen broad at apex, anterior face 

 flat, the apex depressed, baud-like, with a subapical row of short obtuse teeth; 

 two short longitudinal lines on vertex over eyes, two slender stripes on posterior 

 half of thorax, lower portion of flanks, sides of first abdomen segment, two stripes 

 on apical half of abdomen, beginning on apical margin of second segment, aud 

 extreme lateral margin of the segments, silvery ochraceuus pubescent; legs and 

 venter with short and long pale pubescence, more dense on apical -margin of 

 second and following segments ; second segment above covered with rows of short 

 longitudinal carinas, and with two rather large, transversely rounded, reddish- 

 yellow, shining spots behind the middle; calcaria pale. 



Chapada. Common. This closely resembles perspicillaris l\.\ug, 

 which, however, has the head larger and more convex, with two 

 large, rounded, pale spots on vertex ; the thoracic vittae are broadly 

 interrupted at base of mesothorax ; the two shining red spots on 

 second abdominal segment are larger and rounded, not transverse, 

 and instead of the two slender stripes on the apical segments, seen 

 in myops, segments 3-6 are silvery white, with a broad central black 

 stripe; there are no pale pubescent spots on apical margin of second 

 segment. 



51. IVI. ill fail ji^ta 9- — Length 20 mm. — Large, robust; head subquadrate, 

 nearly as broad as thorax, coarsely punctured ; eyes rounded, very convex, 

 smooth and polished ; thorax square anteriorly and strongly constricted behind 

 the prominent, subacute, lateral tubercle or spine ; anterior angles of the thorax 

 tuberculate ; metathorax abruptly declivous posteriorly, the sides rugose, shin- 

 ing; abdomen ovate, first segment sessile with base of the second, depressed 

 above, anterior face of the segment broadly flattened, with the upper margin 

 spinose; second segment covered with short longitudinal carinse; apical seg- 

 ment finely punctured. 



Black, opaque, with black pubescence; mouth, cheeks, under surface of body 

 and legs with whitish pubescence ; a narrow, uninterrupted silvery stripe on each 

 side of thorax above, extending to apex of metathorax, but not quite reaching 

 anterior margin of thorax; a silvery-white patch on lower portion of flanks of 

 metathorax ; calcaria pale; a stripe on each side of first abdominal segnjent, and 

 a narrow stripe on each side of abdomen beginning at apex of second segment 

 and extending to apical segment, all of white pubescencte; second segment above 

 with a narrow, transverse, somewhat oblique, polished, dull yellowish spot on 

 each side of disk ; sides of second segment beneath and apical margin of that aud 

 the following segments fringed with white pubescence. 



Minas, Car. Two specimens. Much the same form as myops, bnt 

 larger, head entirely black, the white pubescent stripes on thorax 

 extended forward and reaching nearly to anterior margin of pro- 

 thorax, and the two smooth spots on second abdominal segment are 

 slender and transverse, like those of indica. 



