1920.] NATURAL SCIENCES OF PHILADELPHIA. 257 



above females, that the subgenital plate of that sex is progressively 

 deeper in its emargination as material from more northern localities 

 is examined, this being shallowest in the Misiones individual and 

 almost fissate in the Chapada specimen. The lateral angles of the 

 plate are progressively produced as the incision deepens. 



Bruner has rcorded the species from both of the above localities 

 and Puerto Suarez, Bolivia. 



Scaphura nigra (Thunberg). 



1824. Gr[ylliis] niger Thunberg, Mem. Acad. Imp. Sci. St. Petersb., IX, p.. 

 415. [Brazil.] 



Goyaz, State of Goyaz. Three females. [Hebard Cln.J 

 Rio Verde, State of Goyaz. Three females. [Hebard Cln.j 

 These specimens represent about four stages in the color varia- 

 tions of this unstable species, of which numerous color forms have 

 been described as distinct species. One type is extremely close to 

 Kirby's figure of vigorsii, except that the proximal section of the 

 marginal field of the tegmina is as dark as the apex of the tegmina: 

 another is similar but paler, with the pronotum largely rufous and 

 the distal portion of the abdomen, particularly ventrad, similar- 

 probably near to ktrhii Westwood; the third has the rufescence gone 

 except from areas in the anal field, proximal section of the discoidal 

 field and a proximo-median patch in the marginal field of the teg- 

 mina, while the apex of the tegmina is pale ; the fourth form is nearly 

 typical 7iig7-a or chaJyhea, with immaculate or nearly immaculate 

 velvety black tegmina and strongly chalybeous abdomen. 



Stilpnochlora marginella (Serville). 



1839. Phylloptera marginella Serville, Hist. Nat. Ins., Orth., p. 40.5. [" Cape 

 of Good Hope."] 



Bonito, State of Pernambuco. (A. Koebele.) One male. [U. S, 

 N. M.] 



Theresopohs, State of Santa Catharina. One male. [M. C. Z.j 

 For comments on this species and its affinity to the other members 

 of its species group, see the recent paper by the author on the sub- 

 ject. ^^ Since the latter paper was written we have been able to 

 examine the type of Scudder's quadrata, and find it to be identical 

 with the material referred to that species by us. The type (male; 

 Guayaquil, Ecuador; Museum of Comparative Zoology) has been 

 badly damaged by insect pests at some time in the past, but its 

 characters are clearly evident. 



=»Entom. News, XXVIII, pp. 108-110, (1917). 



