THE CANADIAN ENTOMOLOGIST. 171 



BOOK NOTICES. 



0. M. Reuter, Bemerkungen fiber nearktische Capsiden nebst Beschrei- 

 bung neuer Arten. (Acta Societatis Scientiarum Fennicae XXXVI, No. 

 2, 89 pp. in 4:0, Helsingfors, 1909). 



This is the most important work thus far published on the numerous 

 North American forms of this exceedingly difficult family of Hemiptera. 

 Since Prof. Reuter published his first paper on Neartic Capsidse (1875) 

 the systematization of this family has made considerable progress, and 

 this is almost entirely due to his own work on this family, which he has 

 made his special study for nearly forty years. The author's recent views 

 about the subdivisions of the family are laid down in his " Klassifikation 

 der Capsiden," published a few years ago. In the present paper we find 

 two important improvements on this system. The Division Garganaria 

 had been founded on examination of old and ill-preserved specimens, and 

 is now united with the Capsaria. On the other hand, the Division 

 Pilophoraria has proved to include heterophyletic forms. To this Division 

 the author now refers only Pilophorus and a new genus, all other genera 

 being transferred to a new Division, Crenuwcephalaria, which is placed 

 rather far from the former Division. (The Divisions in which Reuter 

 subdivides the Capsidse are not systematically equivalent to the subfamilies 

 in other families, and their names ought not to end in — ini or — vice, as 

 proposed by Kirkaldy). The systematic place of numerous species chiefly 

 described or named by Uhler has been corrected, little known species are 

 redescribed, and 10 genera and 59 species are described as new. Of great 

 value is the generic key to the 23 nearctic genera of the Division 

 Capsaria, four of which are new. . A monographic synopsis is given of the 

 genera Phytocoris, Fall. (25 species, of which 17 are new) ; Lygidea, 

 Reut. (3 species, 2 new) ; Tropidosteptes, Uhl. (5 species, 4 new) ; Camp- 

 tobrochis, Fieb. (1 1 species, 4 new) ; Cyrtopeltis, Fieb. (3 species, 2 new), 

 and the new genus, Euryopiella, Reut. (4 species, 2 new). The generic 

 synopsis of the Capsaria and the descriptions of the new genera and 

 species are in Latin, the other descriptions and remarks mostly in 

 German. As the author lost his eyesight before the manuscript was 

 finished, the descriptions of two genera and ten species have been drawn 

 up by Dr. B. Poppius, under the author's direction and supervision. Of 

 these Reuter and Poppius are to be cited jointly as authors. The printer's 

 errors are, unfortunately, rather numerous, and few of them are corrected. 

 The genus Caulotops, Bergr. (previously known only from Argentina), is 



