40 E. T. CRES80N. 



54. W. spinosa Swed. (Klug, Nova Acta Ctes. Nat. Cur. x, p. 309. pi. xxii, 

 fig. 4). — ? .^Length 18 mm. — Head siibquadrate, not broader than thorax, ex- 

 tended behind the eyes about their diameter, posterior angles rounded, posterior 

 margin of cheeks sharply carinate ; eyes small, rounded, i)olished, very con- 

 vex ; thorax shaped much as in larvata, and when viewed from above each 

 side appears to have four obtuse spines, including the prominent stigmatic 

 tubercles, the one on anterior angles of prothorax acute, that between .the two 

 spiracles longer, obtuse and most prominent ; metathoi'ax coarsely punctured, the 

 stigmatic tubercles spiniforra ; abdomen formed and sculptured as in larvata. 



Velvety-black, the pubescence black and suberect ; a spot on the front between 

 the eyes, clypeus, lateral posterior margin of mesothorax, nietathorax except 

 median black stripe, flanks, sides of first abdominal segment broadly, and segments 

 3 and following except a rather broad central stripe, all of dense appressed pale 

 golden pubescence; second segment above with two large ovate shining orange- 

 ferruginous spots, almost meeting on the disk ; calcaria pale; legs and venter 

 clothed with pale golden sericeous pubescence, more dense on coxie and apical 

 margin of segments 2-5. 



Rio de Janeiro (November). Two specimens. 



55. i*I. frigidiila 9- — Length 8 mm. -Slender; head transverse, narrowed 

 behind eyes, which are unusually large, rounded, convex and polislied ; thorax 

 coarsely and densely sculptured, slightly narrower than head, gradually narrowed 

 posteriorly, the metathorax obliquely declivous, and at the summit at base a 

 short, smooth, transverse carina, and on each side a rather long longitudinal 

 groove; lateral margin of thorax not toothed or serrate ; legs 7-ather stout; ab- 

 domen with first segment nodose, beyond which it is oblong-ovate, the second 

 segment depressed, closely deeply punctured, the apical margin shining; beneath, 

 the second segment is sparsely punctured and shining. 



Black, the entire insect above has, in certain lights, a frosty appearance from 

 the fiale glittering pile, which is more dense on head, sides of thorax, legs, apex 

 of first segment of abdomen and on segments 3-5 ; apical segment with long pale 

 hair; second segment with two large irregular pale yellowish spots, margined 

 with brown-ferruginous; calcaria short, stout, pale. 



Santarem. One specimen. 



.56. fl. bellica 9 -—Length 8.5-10.5 mm. — Rather slender; the head and 

 thoi'ax coarsely sculptured ; head transverse, not broader than thorax, the space 

 iiehind eyes narrow; eyes prominent, convex, polished; thorax slightly nar- 

 rowed in front, gradually so behind, the lateral margin not constricted, un- 

 armed, the metathorax rounded behind ; legs .slender ; abdomen ovate, first seg- 

 ment nodose, second segment above finely and densely punctured, the smooth 

 pale spots sparsely punctured and polished ; second segment beneath sparsely 

 punctured and shining. 



Deep black, opaque, the pubescence black; flanks of metathorax with silvery 

 sericeous pile ; calcaria white; the two smooth spots on second abdominal seg- 

 ment longitudinally ovate, pale yellow; a silvery pubescent spot on apical mid- 

 dle of segments 3-5; extreme sides of segments 2-4 with silvery hair; venter 

 with spar.se, pale, glittering hair, more dense on apical margin of segments 2 

 and 3. 



