CRICKETS— CHOPARD 245 



(19), Alar. 15, 1948 (Icf), Apr. 11, 1948 (19), Schunke; Tingo Maria, 

 No\^ember 1949 (Icf, 19), December 1949 (TcT'd', 19), January 1950 

 (2cf cf, 19, 1 nymph), Allard. 



Remarks: The length of the organs of flight is very variable in this 

 species. Nine of the females are perfecth^ macropterous, whereas one 

 has no wings and very short elytra. None of the males shows the 

 macropterous condition. 



Genus AcJieta Linne, 1758 

 Acheta assimilis (Fabriclus) 



Gryllus assimilis Fabricius, Systema entouiologiae, p. 280, 1775. 



Specimens examined: Bolivia: Canamina (Icf, 19). Brazil: 

 Fortaleza, September 1943 (19), MacCreary, Chile: Puerto Osciu-o, 

 Sept. 26, 1947 (Icf), Guzman; Cerrillos de Tamaya, Sept. 16, 1947 

 (19), Guzman. PertJ: Chanchama^o, June 21, 1948 (Ic^, 19), 

 Schunke; Pucallpa, Sept. 10, 1947 (3c?'cf, 299), Schunke; Tingo 

 Maria, December 1949 (19), Allard. 



Acheta peruviensis (Saussure) 



Gryllus peruviensis Saussure, IMissiou scientifique au Mexique .... Recherches 

 zoologiques, pt. 6, section 1 (Orthoptdres), p. 406, 1874. 



Specimens examined: PerIj: Huancayo, Mar. 4-11, 1943 (299), 

 Jacoslav Soukup. 



Acheta fulvastra, new species 



Figure 3,a 



Types: Holotype: Islale, Lower Madidi Eiver, Bolivia, January 

 1921, Mann (USNM 62061). Allotype: Rosario, Lake Rogagua, 

 Bolivia, Oct. 28-Nov. 9, 1921, Mann (9) (USNM). Paratypes: 

 Covendo, Bolivia (Icf), Mann; Rosario, Lake Rogagua, Bolivia, Oct. 

 28-Nov. 9, 1921, Mann (Icf, 19); Rm-renabaque, Bolivia, Mann 

 (Icf); Pucallpa, Rio Ucayali, Peru, Mar. 6, 1948, Schunke (1 c?) 

 (USNM;MNHN). 



Description: Medium size; coloration rather uniformly rufo- 

 testaceous. Head as wide as pronotum, entu'ely of a light rufous 

 brown; frontal rostrum sloping, as wide as 1st antenna! joint. Face 

 scarcely longer than wide; clypeofrontal sutm-e almost straight. 

 Antennae rufous. Palpi light yellow; 4th joint shorter than 3d, 5th 

 large, feebly enlarged at apex, with slightly concave superior margin, 

 apex somewhat obliquely truncated. 



Pronotum with parallel margins, anterior margin very feebly con- 

 cave, V/i times as wide as long; disk rather strongly convex, covered 

 with a very fine pubescence ; lateral lobes a little darker than the disk, 

 with straight inferior margin. Abdomen light 3'eUowish brown, 

 pubescent; epiproct relatively ver}^ long. Genitalia veiy long and 

 narrow (fig. 3,a). 



