33 



D. vhi(lifj-(nis n. 823. 



The beautiful ai^ple-gTeen face, along with its white 

 labial and maxillary palpi, will at once distino-uish this 

 species from any possible other forms of Argentine lo- 

 custs. Antennae ferruginous above, black or dark brown 

 below\ Male with occiput dark testaceous inclining to 

 brown and provided Mith two diverging darker colored lines 

 which reach the front edge of the j^ronotum : the latter Avith 



< C-njl--^A e H]tWMH.. - JKt^^ 



Fiy. 9 — Dichroatettix viridifrons, fcuialt". Fia;. 10. — D. v ridifrons, male. 



the disk more or less intensely blackened toward the rear ; 

 the sides somewhat varigated with light and dark oblique 

 bands which point from the lateral carinae in the rear 

 towards the front. Tegmina brownish with black obscure 

 mottlings along discal area and aj^ical portion. Lower and 

 inner sides of hind femora and hind tibiae in male blackish, 

 except a preapical annulus on femora and a post-basal one 

 on tibiae; posterior tarsi somewhat paler; in female, lower 

 edges only of hind femora blackish, outer, upj^er, and inner 

 faces greenish. Upper portion of abdomen yellowish with 

 an orange brown tint. 



Length of body: d 1^ mm, V i'4 to 'l\^ mm; ])ronotum, 

 d^ 4mm, ? 5.5 mm; tegmina, d 14 to 15 mm, '+ 17 to 18 

 mm; hind femora, d 12.5 mm, + 15 mm. 



Cordoba (F. Schulz) ; Carcarana (O. Thomas). 



GENUS STAURORHECTUS, GIGLIO-TOS. 



St. lojigicoriiis Giglio-Tos. San Lorenzo, Tala (Giglio-Tos) 

 Cordoba (P. Schulz, H. Stemi)elmann. ) 



GENUS STIRAPLEURA, SCUDDER. 



This genus is represented in Argentina, so far as the 

 material before me would indicate, by at least four distinct 



