92 us. NATIONAL MUSEUM BULLETIN 261 



symmetrical, short, with an apical ventral scoop-shaped process which 

 exceeds apex of shaft and which often has its lateral extremities curved 

 dorsomesally to form processes. Paraphyses absent. 



Female abdominal sternum VII with posterior margin deeply emar- 

 ginate, often with a slight convex median process within the 

 emargination. 



Specimens belonging in this genus have been examined from Vene- 

 zuela, southern Brazil, and Argentina. The Venezuela record is possibly 

 an error. It is the type locality of A. basalts Walker. All the other speci- 

 mens examined have been from southern Brazil and Argentina. 

 Aulacizes is closely related to Paraiilacizes and Pseudometopia, from both 

 of which it may be distinguished by the form of the aedeagus, which 

 is not inflated and which in Aulacizes possesses a ventral scoop-shaped 

 apical process. 



The genitalia of the male and the abdominal sternum VII of the 

 female do not appear to offer conclusive specific characters. External 

 characters are variable also, to some degree. For these reasons it has 

 been considered inadvisable to attempt to present a key to species at 

 this time. The reader is cautioned to remember that some of the 

 synonymy in the check list below was made without comparing type 

 specimens of the taxa concerned. 



The present interpretation of ^. erythrocephala (Germar) is based on a 

 specimen (ZIMH) from the Heyer collection and believed to be eligible 

 as lectotype. The female lectotype of A. clypeata (Signoret) has the 

 abdominal sternum VII as in the illustration (fig. 77) of A. quadri- 

 pimdata (Germar). A male specimen, closely resembling the lectotype 

 of A. clypeata, but with the head more angular, has genitalia like the 

 illustration (fig. 78) of A. obsoleta Melichar. The male genitalia of the 

 lectotype of A. diver gens Schmidt are also as in figure 78. A male of 

 A. conspersa Walker, compared with the teneral female lectot)^e, has 

 genitalia as in figure 79. 



SPECIES OF AULACIZES 



r*Type not seen, f Known only from female.] 



t^oya/w Walker, 1851b:795. Venezuela, S. Brazil. 

 clypeata (Signoret), I855b:234 {Tettigonia). S. Brazil. 

 conspersa Walker, 1851b:792. S. Brazil, N. Argentina. 



mac«/fl<a Walker, 1851b: 794. New synonymy. 



terminalis'WdlkcT, 1851b:793. New synonymy. 



repanda (Signoret), 1855a:60 {Tettigonia). New synonymy. 



affinis (Signoret), 1855b:227 {Tettigonia). 



annuligera (Walker), 1858b: 231 {Precoma). New synonymy. 



persistans (Walker), 1858b:232 {Proconia). 



maculata var. nigriceps Schmidt, 1928c: 79. New synonymy. 



