KO.2130. NORTH AMERICA RHAPHIDOPHORINAE—CAUDELL: 



663 



GAMMAROTETTIX BILOBATUS Thomas. 



This species was described in the genus CeuthopMlus by Tbomas in 

 1872, and more than a decade later it was redescribed by Brunner 



Fig. 4.— Gammaeotettix bilobatsus. Last 

 dorsal segment of the abdomen and the 

 cekci of the male. 



Fig. 5.— GAMMAROTETTIX BILOBATUS. SUB- 

 GENITAL PLATE OF THE FEMALE. 



Fig. 



6.— GAMMAROTETTIX BILOBATUS. 

 TARSUS. 



Hnro 



as a new genus and species under the name Gam/maroteUix califoV' 

 nicus. Brunner's genus is good and stands, but bis specific name falls 

 before the older name hilohatus of 

 Thomas. There is no question of 

 this synonymy. 



This species is known only from 

 California "but is recorded from 

 various localities in the southern 

 and middle portions of that State, 

 and there are specimens in the United States National Museum from 

 Humboldt County, in northern California. Some specimens from 

 southern California recorded as this species very likely belong to the 

 very distinct species described below. 



GAMMAROTETTIX GENITALIS, new species. 



This species, which superficially resembles very closely the above, 

 passed the scrutiny of Mr. Scudder without being recognized as a 



distinct species. But, as indicated 

 by the genital characters cited in 

 the above key, it is amply distinct 

 from hilohatus. In addition to the 

 diagnostic characters mentioned in 

 the table, this species differs from 

 hilohatus as follows: The last dor- 

 sal segment of the male (fig. 7) is 

 more broadly notched posteriorly 

 and distinctly different in shape 

 from that of hilohatus (fig. 4) ; in addition to the difference in color of 

 the subgenital plate of the male, there are other colorational differ- 

 ences deserving mention, thus the diagonal infuscation of the meso- 

 and metanotum, usually a conspicuous feature of hilohatus and rarely 



Fig. 7.— GAMMAROTETTIX GENITALIS. LAST DOR- 

 SAL SEGMENT OF THE ABDOMEN AND THE CERCI 

 OF THE MALE TYPE. 



