90 THE CANADIAN ENTOMOLOGIST. 



the rectangle is more pleasing than the square because of its variety. 

 For example, the Coccinellidae are not as pleasing as to form as 

 the Elaterida?. Symmetry at times becomes monotonous. Some 

 members of this order are exploited horizontally from the vertical 

 line formed by the inner edges of the \ving covers and others, 

 vertically above and below the upper edge of the abdomen or 

 markings on the abdomen, while still others will impress one at 

 the first only with their pleasing or displeasing inequality of parts. 



Some of the Odonata also exhibit a pleasing inequality of 

 parts, especially those which are T-shaped when spread. 



Aesthetic pleasure depends in part upon certain habitual 

 methods of orientation and exploitation, such as the movement of 

 the eyes and attention upwards which is preferred to a movement 

 downwards, a movement from the eyes of left to right, which is 

 preferred to the opposite movement, and proportion, which is 

 more pleasing in some cases than symmetry. As mentioned 

 before, symmetry and proportion are only two of the many factors 

 contributing to the total result known as aesthetic appreciation of 

 insects. 



THE CADDIS-FLIES (TRICHOPTERA) OF JAPAN.— II. 



BY W'ARO NAKAHARA, TOKYO, JAPAN. 



(Continued from Vol. XLV, p. 327.) 



Family Limnophilidfe. 



Of this family I recognize six genera as occurring in Japan,^ 

 viz., Glyphotaelius, Nemotaulins, Grammotaulius, LimnophiluSf 

 Nothopsyche, and Moropsyche. 



Genus GlyphotcBlius Steph. 

 1. Glyphotaelius admorsus MacLachlan. 



Glyphotcelius admorsus MacLachlan — Trans. Ent. Soc. Lond. 

 (3) V, p. 250 (1866); Hagen, Verh. zool.-bot. Ges. Wien, XXIII, 

 p. 446 (1873); Matsumura, Thous. Ins. Jap., I, p. 167, pi. XII, 

 fig. 4, cf (1904); Ulmer, Cat. Coll. Selys, VI, p. 16, figs. 24 and 25, 

 pi. I, fig. 4 (1907); Ulmer, Deutch. Ent. Zeit., p. 340 (1908). 



Habitat — Hondo (Gifu, Okayama, Tokyo, Inokashira, near 

 Tokyo, Osaka, Teganuma, etc.); Kiushin (Yanagawa, Prov. 

 Chikugo). 



March, 1915 



