NOTES ON THE POLYZONIID/E. 



BY CHARLES H. BOLLMAN. 



1841. Ommatophora Brandt. Eecueil, 89 (Polyzonium). 



1841. Typldogena Brandt. Recneil, 50 (Siphonopliora'). 



1844. PolyzonidcB Gervais. Aun. Sci. Nat., 3, ser. zool., n, 70 (Polyzonium). 



1844. Polyzoniden, Koch. Syst. Myr., 6L and 142 (Polyzonium). 



1847. Polyzonides Gervais. Apteres, iv, 203 (Polyzonium). 



1865. Polyzonlidfc Wood. Trans. Amer. Phil. Soc., 248 (Polyzonium). 



1869. Androtjnathidce Cope. Proc. Amer. Phil. Soc., 182 (Andrognathus). 



The characters of the family are the same as those of the order 

 Colobognaiha. 



Analysis of the subfamilies of Polyzoniidw. 



* Guathochilarium represented by an acute triangular plate ; dorsal plates not sul- 



cate nor covered with short stiff hairs; lateral carhue not well developed. 



POLYZONIIN^E. A. 



* * Gnathochilarium subsimilar to that of the Jitlida;; dorsal plates medianly and 



transversely sulcate, covered with nnuierous short hairs; lateral carinra well 

 developed .............................................. PLATYDESMIN.E. B. 



A. POLYZONinSLE. 



1841. Ommatopliora Brandt. Recueil, 49. 



1844. Siphonophoridce Newport. Trans. Linn. Hoc., 278. 



1872. Polysonia Humbert &. Saussure. Miss. Sci. Mex., vi, 99. 



1887. Polyzonil Pocock. Ann. and Mag. Nat. Hist., 225. 



I. POLYZONIUM. 



1834. Polyzonium Brandt. Oken's Isis, 704 



1836. Platyulus Gervaia. Bull. Soc. Phil. Paris, 71 (audouinii = germanicum). 



1839. Leiosoma Victor. Bull. Nat. Moscou, 44, PI. 1 (rosea = germanicum). 



1870. Petaserpcs Cope. Trans. Amer. Eut. Soc., 65 (romillnim,). 



1880. Hirudisoma Fanzago. Bull. Soc. Ent. Ital., 276 (pallidum). 



I$87.Hexag1ena McNeill. Proc. U. S. Nat. Mus., 328 (roxaJbum}. 



ISSS.Hexoglenti McNeill. Bull. Brook. Soc. Nat. Hist., in, 188. 



Body wide, depressed, elongate-oblong; convex above, slightly con- 

 cave beneath ; not pilose. Head distinctly rostrate, partly concealed 

 under the first dorsal plate. Antennae subclavate, bases approximate, 

 articles subequal. Ocelli present, 2-4, arranged in two diverging 

 series between the bases of antennae. Mandibles small, triangular. 

 Gnathochilariuin much degenerated; stipes apparently deeply bifid, 

 acuminate; lingual lobes well developed; promentuni small, ovate; 

 mentum, hypostoma and cardo not developed. Dorsal plates smooth, 

 not sulcate or tuberculate, first arcuate 1 , advanced forward to the base 

 186 



