106 U.S. NATIONAL MUSEUM BULLETIN 24 4 



Male genitalia. — Not examined. Koebler (1953), illustrating the 

 genitalia of this species, indicates that the genitalia (especially the 

 saccus) are somewhat shorter than that in 0. bergii (=oviformis). 

 This, however, may not be of specific importance. 



Female. — Unknown. 



Case.- — (Fig. 94.) Length 28-40 mm.; diameter 4-6 mm. Struc- 

 ture of bag very similar to that of 0. geyeri; exterior completely naked, 

 walls very firm; elongate-fusiform shape, greatest diameter at anterior 

 end, gradually tapering posteriorly. 



Lectotype. — In the Zoologische Sammlung der Bayerischen 

 Staates, designated by the writer. 



Type locality. — Mendoza, Argentina. 



Recorded hosts. — "Fabaceae: leguminosas arboreas" (Koehler, 

 1953). 



Distribution. — (Map 9.) Presently known only from the Prov- 

 ince of Mendoza in the Monte region of the Parana Paraguay Plain 

 of western Argentina. 



Discussion.- — The larval case of this insect serves to separate 

 0. borsanii from its closest relative 0. bergii, but the adult males of 

 these two species, as far as can be determined, are inseparable. There 

 seems to be no reason to suspect that an error in the rearing or associ- 

 ation of these males has occurred, but it would be desirable if more 

 males of 0. borsanii could be reared and thus definitely be associated 

 with these very characteristic cases. 



Material examined. — 2 cf cf, 11 cases: 



ARGENTINA: Mendoza, cf, lectotype, ZSBS. Prov. of Mendoza, d', 10 

 cases, ZSBS. 



44. Oiketicus geyeri Berg 



Figures 43, 95, 96, 184, 230, 287, 307, 349, 385; Map 11 



Oiketicus geyeri Berg, Anales See. Cient. Argent., vol. 4, p. 98, 1877; Bull. Soc. 

 Nat. Moscou, vol. 52, no. 2, p. 13, 1877. — Heylaerts, Ann. Soc. Ent. 

 Belg., vol. 25, p. 69, 1881.— Berg, Anales Soc. Cient. Argent., vol. 13, 

 p. 217, 1882.— Kirby, Cat. Lep. Heter., vol. 1, p. 500, 1892.— Dalla 

 Torre and Strand, Lep. Cat., pars 34, p. 194, 1929. — Gaede in Seitz, 

 Macrolep. World, vol. 6, p. 1184, pi. 169e, 1936.— Koehler, Physis, vol. 

 17, p. 468, 1939.— Forbes, Bull. Mus. Comp. Zool., vol. 90, no. 2, p. 368, 

 1942.— Vazquez, Anales Instit. Biol., vol. 13, no. 1, p. 262, figs. 1-4, 3a, 5-6, 

 1942; in Mem. Congr. Cient. Mex., Vll-Cienc. Biol., pp. 334, 335, 336, 339, 

 fig. 5, 1953. 



Oeceticus [sic] geyeri Berg, Burmeister, Descr. Phys. Rep. Argent., Lep., vol. 5, 

 p. 402, 1878. 



Oiketicus iahacilkis Weyenbergh, Tijdschr. Ent., vol. 27, p. 20, figs. 12, 13, 

 1884. — Heylaerts, Ann. Soc. Ent. Belg., Compt.-Rend., vol. 28, p. xciv, 

 1884 (synonym of O. fifeyen) .—Kirby, Cat. Lep. Heter., vol. 1, p. 500, 1892 

 (synonym of 0. geyeri). — Dalla Torre and Strand, Lep. Cat., pars 34, p. 194, 

 1929 (synonym of O. geyeri). 



