EMBIOPTERA OF THE NEW WORLD — ROSS 497 



the chaetotaxy of the hindtarsi are almost identical to those of fe- 

 males of the oligotomid genus Eaploemhia of the Mediterranean 

 region of the Old World. It is also interesting to note that Gynem- 

 bia has habits identical to those reported for Eaploemhia solieri 

 in Bulgaria (Taborsky, 1938, as grassii). Fossils from Baltic amber 

 {Eaploemhia antiqua) (Pictet) indicate that this genus ranged far 

 to the north during Tertiary times, and it is possible that it ex- 

 tended eastward across Siberia as well. Thus it is suspected that 

 the ancestors of Gyncmhia reached America at this time (as did 

 so much Pacific coast biota) by means of the land bridge across the 

 Bering Strait. With but this one exception, all other Embioptera 

 that are present today in temperate North America can be directly 

 derived from Neotropical ancestors. The possibility of its intro- 

 duction by man from Europe must be considered, but such a happen- 

 ing seems unlikely in view of the wide distribution of the species 

 in California and the fact that it is parthenogenetic, i. e., males are 

 present in Eaploemhia. 



UNRECOGNIZABLE SPECIES 



The following four species are based upon specimens of the female 

 sex or young and, in the light of present knowledge, are unrecog- 

 nizable : 



EMBIA (OLYNTHA) MULLERI Hagen 



EmUa (Olvnfha) mulleri Hagen, 1885, p. 206.— Krauss, 1911, p. 32.— Endeelein. 

 1912, p. 52.— NavAs, 1918, p. 102.— Davis, 1940b, p. 352. 



Eolotype.—F^m^lQ (dried and crushed), Museum of Comparative 

 Zoology. 



Type c?aiJa.— "Itajahy, S. Cattarina, S. Brazil, collected 1879 by Dr. 

 F. Muller." 

 This species is probably an Emholyntha. 



OLIGOTOMA BICINGILLATA Enderlein 



OUgotoma bicingiUafa Endeelein, 1909, p. 191.— Kbauss, 1911, p. 45.— Endeelein, 

 1912, p. 93, pi. IR.— Navas, 1918, p. 90.— Davis, 1940c, p. 384. 



Eolotype.—Female, in Stettiner Zoologischen Museum. 

 Type data. — "Brasilien, Para." 



EMBIA PIQUETANA Navas 



Embia piquetana NavAs, 1919, p. 25.— Davis, 1940b, p. 352. 

 Eolotype. — Female, disposition unknown. 

 Type data. — Santa Fe, Argentina. 



552731— 4J 



