1919.] NATURAL SCIENCES OF PHILADELPHIA. 93 



Florida: Atlantic Beach ;^5 Pablo Beach ;^^ Jacksonville;" South 

 Jacksonville;" Cedar Keys;^' Indian Beach, Sand Key, Pinellas 

 County, IX, 17, 1917, (R. & H.; in area of high grass on landward 

 border of salt marsh), 2 cf , 1 9 ; Long Boat Key," Useppa Island;''* 

 Miami ;^5 Homestead ;*° Long Key;^° Big Pine Key.^° 



Mermiria bivittata (Serville)." Plate VI, figs. 15-24. 



1839. Opsomala bivittata Serville, Hist. Nat. Ins., Orth., p. 589. [ 9 : 

 North America.) 



1877. M[ermiria] bivittata Scudder, Proc. Bost. Soc. Nat. Hist., xix, p. 30. 

 [Georgia.] 



1897. Mermiria bivittata McNeill, Proc. Davenp. Acad. Nat. Sci., vi, 

 pp. 204, 205. (In part.) 



1899. Mermiria bivittata Scudder, Proc. Amer. Acad. Arts and Sci., xxxv, 

 pp. 41, 42. (In part.) ["Georgia" and "Texas" records only.] 



1904. Mermiria bivittata Morse, Publ. 18, Carneg. Inst. Wash., p. 29. 

 [cf: Fort Barrancas, Florida.] 



1907. Mermiria bivittata Morse, Publ. 68, Carneg. Inst. Wash., p. 28. 

 (In part.) [cf, 9: Cheaha [Chehawhaw] Mountain, Alabama; Nugent, 

 Mississippi; Caddo, South McAlester and Wilburton, Indian Territory 

 (now part of Oklahoma); Cache and Mountain Park, (in part), Okla- 

 homa; Denison, St. Jo and Wichita Falls, (in part), Texas, records.] 



1907. Mermiria intertexta Rehn and Hebard (not of Scudder), Proc. Acad. 

 Nat. Sci. Phila., 1907, p. 286. [c?: Pablo Beach, Florida.] 



1916. Mermiria bivittata Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 

 1916, p. 157. [ 9 : BUly's Island, Georgia.] 



Comparison. — This species is closely related in general appear- 

 ance to macuUpennis, and the two are often very hard to separate, 

 particularly in the female sex. The most conspicuous feature 

 of the species is found only in the male sex and is purely a color 

 character, i. e., the absence of a pale subcostal stripe on the teg- 

 mina. In all the other species of the genus this is constantly 

 indicated, although rarely subobsolete in males of intertexta, which, 

 however, are quite distinct in other features. The other features 

 of difference in this species from macuUpennis are: the usual 

 presence of a short, weak, cephalic median carina on the fastigium; 

 the proportionately shorter dorsum of the fastigium in both sexes, 



*' Reported by Rehn and Hebard as vigilans (Proc. Acad. Nat. Sci. Phila., 

 1907, p. 286, (1907)). The material there reported by them as vigilans since 

 has been correctly assigned to bivittita. 



48 Reported by Hebard (Ent. News, xxvii, p. 17, (1916)). 



■"^ Reported as Mermiria species by Rehn and Hebard (Proc. Acad. Nat. Sci. 

 Phila., 1912, p. 250, (1912)). 



50 Reported by Rehn and Hebard (Proc. Acad. Nat. Sci. Phila., 1914, p. 390, 

 (1914)). 



'^ The following references may relate to this species, but their assignment 

 cannot be made positively. 



1870. Opomala bivittata Walker, Catal. Derm. Salt. Brit. Mus., iii, p. 507. 

 [St. John's Bluff, Florida.] (May refer as well to M. intertexta or alacris.) 



1871. Opomala bivittata Scudder, Rep. U. S. Geol. Surv. Nebr., p. 250. 

 [Nebraska City, Nebraska.] (May refer as well to M. macuUpennis.) 



1872. Opomala bivittata Glover, 111. N. A. Ent., Orth., pi. vi, figs. 24, 26, 

 pi. xi, fig. 7. 



