156 NORTH AMERICAN BLATTIDAE 



caudal margin of cephalic femora and ventral margins of other 

 femora heavily spined. Tarsi elongate, four proximal joints each 

 bearing a small distal pulvillus. Small arolia present. 



Pseudomops septentrionalis new species (Plate VI, figures 5 to 8.) 



1900. Thyrsocera cinda Scudder, (not of Burmeister, 1838),-" Proc. Davenport 



Acad. Nat. Sci., viii, p. 7. [[cf, 9]: Texas.] 

 1904. Thyrsocera cincta Caudell, (not of Burmeister, 1838), Mus. Brooklyn Inst. 



A. & S., Sci. Bull., i, p. 105. [d^: Topo [Stage station near Brownsville], Texas.] 

 1907. Pseitdoiiiops oblongata Rehn, (not Blatta oblongata Linnaeus, 1758),-" Ent. 



News, xviii, p. 209. [ 9 : Brownsville, Texas.] 

 1913. P[seiidomops\ intercepta Caudell, (not of Burmeister, 1838), Proc. U. S. 



Nat. Mus., xliv, p. 603. (Altering record of oblongata from the United States.) 



That the present species has in the past not been recognized as 

 undescribed, is due to the fact that, at the time the previous rec- 

 ords were made, insufficient material of the more southern species 

 was at hand. 



The present insect is very closely related to P. intercepta,-^^ 

 differing from that species in the pronotal coloration (which never 

 shows the distinctive pattern usual in the Mexican insect), slightly 



2=^ 1838. Th[yrsocera] cincta Burmeister, Handb. Ent., ii, abth. ii, pt. i, p. 499. [iMexi- 

 co.j Compared with P. septentrionalis this species is found to have also non-spatulate 

 cerci and non-plumose antennae, but is smaller, distinctly more slender, with black an- 

 tennae not annulate, pronotum less transverse, distinctly narrower tegmina marked 

 mesad with a dark longitudinal intramarginal stripe and distinctive primary and second- 

 ary male sexual features. These observations are based on three males before us from 

 Orizaba, Vera Cruz, Mexico, which have been correctly recorded by Rehn. 



-" 1758. Bllatta] oblongata Linnaeus, Syst. Nat., Ed. X, i, p. 425. [.\merica.] 

 This species is not at all closely related to P. septentrionalis, as it belongs to a different 

 group of species, showing likewise non-spatulate cerci, but decidedly more slender in form, 

 with plumose antennae. The peculiar pronotal markings and plumose antennae are 

 described by Linnaeus; De Geer later figures the species showing plainly these characters, 

 his material coming from Surinam and almost certainly from the same series as the type, 

 as has been pointed out by Shelford, Trans. Ent. Soc. London, 1907, p. 457, (1908). 



-'■'^ 1838. Bl[atta] intercepta Burmeister, Handb. Ent., ii, abth. ii, pt. i, p. 497. [Mex- 

 ico.] 



The comparisons here made are based on the following specimens of this species. 



Distrito Federal, Mexico, (J. R. Inda),2c?,2 9, [U.S. N. M.]. 



San Rafael, Vera Cruz, Mexico, (C. H. T. Townsend), i d', 5 9 , [Hebard Cln.]. 



Orizaba, Vera Cruz, Mexico, I, 1892, 2 cf , i 9, [Hebard Cln.]; I, 9 to 16, 1892, 

 (H. Osborn), 2 9 , [U. S. N. M.]. 



Cordoba, Vera Cruz, Mexico, VI, 10 and 11, 1908, (F. Knab), i cf , i 9 , [U. S. N. M.]. 



Vera Cruz, Vera Cruz, Mexico, 191 1, (F. W. Lrich), 2 9 , [U. S. N. M.]. 



Teapa, Tabasco, Mexico, (H. H. Smith), i 9, l\. N. S. P.]. 



