232 PROCEEDINGS OF THE ACADEMY OF [1897. 



a little more than half as long as the first bind tarsal joint ; cubital 

 vein of hind wings interstitial with apex of submedian cell ; abdomen 

 as long as thorax, compressed apically, with a faint, bluish tinge. 

 Length 18 mm. 



Santarem. One specimen. Allied apparently, to melanosoma 

 Kohl, but differs in the longer pronotum which, in the middle, is 

 fully half as long as the longest part of dorsulum. The front is 

 longer and narrower than in melanosoma. 



Notocyphus ferrugineus u. sp. 



9 . — Ferruginous; sutures of thorax, and apex of dorsal abdom- 

 inal segments obscurely, black ; clypeus subtruncate, or slightly 

 rounded-out ; labrum about as long as it is broad at base, subtrun- 

 cate at apex ; front with impressed line, which becomes obsolete, 

 however, toward base of antennae; the latter broken off and missing 

 beyond the first three joints ; eyes but little separated from the 

 mandibles, the space between them at the top about equal to the 

 length of first joint of flagellum ; hind ocelli separated by a much 

 greater distance than from the nearest eye-margin ; pronotum arcu- 

 ate posteriorly ; middle segment not emarginate, posterior surface 

 depressed, or concave, postero-lateral angles not at all produced, 

 upper surface shorter than the dorsulum, parted by a longitudinal, 

 central, impressed line ; legs feebly spinose, the longer spur of hind 

 tibise at the most half as long as the first hind tarsal joint; wings 

 fulvo-hyaline, the costal half of the superiors fuscous, the apical mar- 

 gins palest, first recurrent vein received by the second submarginal 

 cell in the middle, cubital vein of hind wings originating far before 

 the apex of the submedian cell ; abdomen as long as the thorax, 

 scarcely compressed. Length 17 mm. 



Chapada (March). * One specimen. 



Notocyphus nubilipennis n. sp. 



9 . — Black ; abdomen reddish, the base of the first, second, and 

 greater part of third dorsals, and most of ventral surface, blackish ; 

 head and thorax with a silvery-sericeous pile, especially on the 

 clypeus and coxse ; head as wide as thorax; clypeus subtruncate; 

 labrum distinctly longer than broad at base, subtruncate and finely 

 punctured ; eyes distinctly separated from the mandibles, a little 

 converging above, the space between them at the top equal to the 

 length of first joint of flagellum, this latter is somewhat shorter than 

 the second joint; antennas slender, distinctly longer than head and 



