June, 1918 Bulletin of the Brooklyn Entomological Society 63 
Meee ee eee ee err ee ee ee eee ee a ec ee ee eee eee 
reduced or wanting. The styli of male Isoptera (Figs. 39, 40, 
and 44, “s”) are usually small and inconspicuous. I do not find 
the styli represented in my Odonatan material (males), nor have 
I been able to find them in the Phasmids, Dermaptera, Embiids, 
or Plecoptera. 
Since the foregoing discussion is intended merely to form the 
foundation of a subsequent more extended consideration of the 
terminal abdominal structures of the males in the different groups 
of insects, a detailed comparison of the modifications met with in 
these different groups can be more profitably taken up in separate 
papers dealing with them in particular. The second paper of the 
series of studies of male genitalia will shortly be published in 
Psyche, in which the modifications met with in the phylogeneti- 
cally important group Neuroptera (which has been barely men- 
tioned here) will be taken up in connection with a phylogenetic 
study of the parts in the Neuroptera, Mecoptera, Diptera, Tri- 
choptera, etc. 
BIBLIOGRAPHY. 
General.—For a general consideration cf the genitalia of male insects, 
the most important works are those of Berlese, 1909 (Gli Insetti) ; 
Bethune-Baker, 1914 (Proc. Ent. Soc. London, 1914), p. cxx); Packard, 
1883 (Third Rpt. U. S. Ent. Comm.,, p. 286) ; Packard, 1898 (Textbook of 
Entomology) ; Peytoureau, 1895 (Act. Soc. Linn. Bord., xlviii) ; Zander, 
1903 (Diss. Erlangen). 
Apterygota—Berlese, 1909 (1. c.) ; Escherich, 1905 (Zoologica, 18, Heft 
43) ; Escherich, 1906 (Zoél. Anz., 30, p. 737); various papers by Folsom; 
Prell, 1913 (Zoologica, Heft 64); Willem, 18909 (Mem. Sav. Etr. Acad. 
Roy. Belg.). 
Blattids—Breme, 1881 (Troudy Ent. Ross, xi, p. 157); Brunner, 1861 
(Verh. Zool. Bot. Ges. Wien, xl, pt. 4); Brunner v. Wattenwyl, 1876 
(Festsch. Feier 25 jh. Best. k. k. Zool. Bot. Gesell. Wien); Hebard, 1917 
(Mem. 2 Amer. Ent. Soc.); Miall & Denny, 1896 (The Cockroach) ; 
Peytoureau, 1895 (Act. Soc. Linn. Bordeaux, xlviii, p. 9); Wesche, 1908 
(J. Queck. Mic., Cl. X, p. 235). 
Dermaptera—Burr, 1915 (Trans. Ent. Soc. London, 1915, p. 257; also 
p. 269; Jour. R. Micr. Soc., 1915, p. 521) ; Hansen, 1894 (Ent. Tidsk. Arg., 
. 15, p. 65); Jordan, 1909 (Nov. Zool., xvi) ; Meinert, 1868 (Nat. Tidsk., v, 
p. 278); Verhoeff, 1903 (Nov. Act. K. L. C. D. Akad. Naturf., 81) ; 
Zacher, 1911 (Zool. Jahrb. Abt. Syst., 30, p. 303; also Zeit. wiss. Insb., 8, 
p. 276). 
Embiids—Enderlein, 1912 (Coll. Zool. Selys-Long., Fasc. 3, No. 5); 
_ Imms, 1913 (Trans. Linn. Soc. Lond., xi, pt. 12); Verhoeff, 1904 (Nova 
Acta. K. L. C. D. Akad. Naturf., Ixxxii, p. 145). 
