no. 1700. THE EARWIGS OF THE U.8.NATWNAL XIU8EI 1/ BURR. 453 



Mexico. — Orizaba, January 9 to Hi, idol' (II. Osborn). Deter- 

 mined by Rehn. One female. 



Rehn [1903 2 , p. 305] doubtfully refers this specimen to L. gut- 

 tata Scudder as not quite agreeing with Scudder's description. 1 1 is 

 a female, in not very good condition. I prefer to regard it. with some 

 doubt, as a female of /.. nnidentata. 



3. BILINEATA Scudder. 



GuaU mala. Cacao, Trece Aguas, Alia Vera Paz, one male (Barber). 

 [See Caudell, L907 2 , p. 173.] 



4. ARACHIDIS Yersin. 



"From a ship at San Francisco which arrived from India" (Cat. 

 No. 6588), two males, labeled " ( '<nri nop/iora , sp." 



Mexico. — Cordoba, one female, April 26, 1908 (Knab). 



Hawaii. — Honolulu, one female (M. van Dine). On label it is 

 suggested that this specimen mighl be S. hawaiensis Bormans, or 

 L. pygidiata y Bormans. 



5. ANNULATA Fabricius. 



Forficula annulata Fabricius, I7!t:t, p. 4. 



Labia muni lulu Rehn. 



? Forficula dorsalis Burmeister, L838, p. 754. 



Labia chalybea Dohrn, L864, p. 429 (and authors). 



Labia arcuata Scudder, IS70 ; , |>. 257 (and authors). 



Labia flaviscuta Rehn, L903 2 , p. 305. 



The above synonymy calls for some comments. I follow Rehn in 

 restoring Fabricius' name, which is perfectly applicable to this species, 

 as de Bormans had noticed (1900, p. 69), in his contention that the 

 mass of doubtful names of older authors should be reduced as far as 

 possible, and that an absolute proof of identity is not necessary 

 where the evidence is fairly strong in favor if so doing, provided that 

 there be no evidence to the contrary. Fabricius' species is recorded 

 from "America meridionalis insulae." This justifies our use of the 

 name L. annulata Fabricius, in place of the more familiar /.. arcuata 

 Scudder. 



Now as to L. flaviscuta Rehn. I consider it to be identical with 

 the variety of L. arcuata having yellow pronotum, as mentioned by 

 de Bormans (1893, p. (i, and L900, p. 69). The shorter wings and 

 somewhat longer pronotum of the female, ([noted by Helm to differ- 

 entiate L. flaviscuta, are not, in my opinion, of sufficient value as 

 discriminating characters. 



Next, as to the identity of L. arcuata with L. chalybea. Two of 

 Dohrn's original specimens of L. chalybea are in the Vienna Museum 

 and both are from Venezuela; one, apparently a female, has the 

 head and apex of the abdomen missing; it is dull brown in color and 

 strongly pubescent. I can not distinguish it, from females of /,. 

 arcuata Scudder. 



The other specimen is also a female; its pygidium is narrow . bluntly 

 conical, with two minute points at the apex. Moreover, the elytra, 

 though bluish, are paler at the shoulders, and strongly pubescent. 



