110 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxvi. 



Genus SPATHALIUM Bolivar. 



1884. Spathaliuni Bolivar, Anales Soc. Esp. Hist. Nat., XIII, p. 30. 

 Included six congeneric species, of which the first, S. sommeri (Bur- 

 meister), can be considered the type. 



SPATHALIUM CYANOPTERUM (Blanchard). 



1836. Ommexecha cyanopterum Blanch.\rd, Ann. Soc. Ent. France, V, p. 608, 

 pi. xxi, figs. 1 and 2. [Chiquitos, Brazil, now in Bolivia.] 



Chapada, Matto Grosso, Brazil. April, September, and Novem- 

 ber. (H. H. Smith.) Three females. 



These specimens are slightly or considerably smaller than Blanch- 

 ard's measurement (38 mm. in length), but appear to belong to this 

 species. 



The variation in size in the individuals in hand is considerable, the 

 extremes in length of the body being 29 and 32 mm., in the length 

 of the pronotum 7.5 and 8, and in the length of tegmen 21.2 and 25. 



Genus OMURA Walker." 



1870. Omura Walker, Cat. Spec. Derm. Salt. Coll. Brit. Mus., Ill, p. 503. 



Type. — Omura congrua Walker. 



OMURA CONGRUA Walker. 



1870. Omura congrua Walker, Cat. Spec. Derm. Salt. Coll. Brit. Mus., Ill, p. 

 504. [Para, Brazil; Amazon Region; Archidona, Ecuador.] 



Benevides. July [one] (H. H. Smith). One male, one female. 



There appears to be little doubt that Walker was in error in describ- 

 ing his specimens of this species as males, as the measurement given^ 

 as well as characters in the generic description, are clearl}' those of 

 the female. 



Stal's Protomachus depressus is possibly distinct from Walker's spe- 

 cies, the shape of the rostrum and the space between the metas- 

 ternal foveolse as described appearing different from true congrua. 

 The species depressus was described from Peru, Bolivar also record- 

 ing it from the Upper Amazon. In addition to the localities given 

 above, a series of twenty-three specimens of 0. congrua from Bartica, 

 British Guiana, have been examined by the author. 



SiaTofkinily LOCXJSTIlSr.^: (ACRIDINJK ^^vithors). 

 Genus PROCOLPIA Stal. 



PROCOLPIA MINOR Giglio-Tos. 



Chapada, Matto Grosso. March and April. (H. H. Smith.) One 

 male, one female. 



"This name should rejilace Protomachus Stal. See Bolivar, Boletin Real Soc. 

 Esp. Hist. Nat., V, p. 215. 



