168 PROCEEDINGS OF THE ACADEMY OF [April, 



*Coelopterna acuminata (De Geer). 



1773. Acrydium acumiiiatum De Geer. Mem. I'Hist. Ins., Ill, p. 501, pi. 

 XLII, fig. 10. [Surinam.] 



1 d". January, 1903. 



This peculiar species has been recorded from several localities in 

 Paraguay. No comparison has been made with Surinam material. 



PYRGOMORPHIN^. 



OSSA Giglio-Tos. 



1894. Ossa Giglio-To.s, Bollett. Mus. Zool. Anat. Comp. Torino, IX, No. 

 184, p. 15, pi. fig. 2. 



Type. — 0. himaculata Giglio-Tos. 



Ossa bimaculata Giglio-Tos. 



1894. 0[.sso] bimaculata Giglio-Tos, Bollett. Mus. Zool. Anat. Comp. Torino, 

 IX, No. 184, p. 15, pi. fig. 2. [Resistencia nel Chaco, Argentina.] 



12 d", 12 9 . December to March. 



All of the female specimens are slightly, and some considerably, 



larger than the measurements of the type given by Giglio-Tos. 



OMMEXECHA Serville. 

 1831. Ommexecha Serville, Ann. Sci. Nat., XXII, p. 285. 

 Type. — 0. virens Serville, 



♦Ommexecha virens Serville. 



1831. Ommexecha virens Ser^alle, Ann. Sci. Nat., XXII, p. 286. [Buerfos 

 Ayres.] 



4 9 . May, 1902. 



One of these specimens is distinctly true virens as far as color is con- 

 cerned, the others apparently being Blanchard's 0. servillei, which 

 probably is only a brown phase of virens. The only other conclusion 

 that can be reached from the material before me is, that servillei has 

 two color phases represented in this series, distinct, however, from 

 virens which should be retained as a poorly understood form. This 

 view does not appear as likely as the synonymy of servillei with virens. 

 No structural characters separate the two color forms as far as available 

 material goes, the strength of asperities and ridges in this genus being 

 subject to considerable variation. 



Bruner has recorded the brown phase from Asuncion and San 

 Bernardino, Paraguay, 



*Ommexecha germari Burmeister. 



1838. 0[m7nexecha] German Burmeister, Handb. d. Entom., bd. II, abtl;. 

 II, pt. I, p. 655. [Brazil.] 



9 (5", 10 9 . February and March, 1905; May, 1902. 



