THE CANADIAN ENTOMOLOGIST. 27 



HALISIDOTA MACULARIA, WALK. 



I find on further search that H. macularia, Walk, (see Can. Ent. 

 Vol. XXIV., p. 306), is made a synonym of Alpenus maculosus, Stoll., 

 whose habitat is given as West Africa. The citation of it from North 

 America can only be the result of an error. The occurrence of Halisidota 

 megapyrrha, Walk. (= Atnmalo he/ops, Cram.), is also doubttul, though 

 not so much so, as its home is in Surinam. 



Harrison G. Dyar, Roxbury, Mass. 



ASTATUS BICOLOR, SAY. 



In the excellent synopsis of the difficult genus Astatus, by Dr. William 

 J. Fox, published in the September number of this journal, I believe that 

 gentleman to be in error as to his identification of A. bi color, Say. This 

 is an undersized species, not uncommon in Illinois, having the stigma and 

 the contiguous portion of the submarginal vein of a yellowish rufous 

 colour — "pale rufous", Say writes — and not black, as Dr. Fox states ; the 

 legs black, as usual. The species described by Dr. Fox as new, under 

 the name pygidialis, appears from the description to agree closely with 

 bicolor, scarcely differing except in the rufo-testaceous colour of the legs 

 and on the clypeus and antennal scape, which parts are black in bicolor. 

 It is possibly an extreme variety of the latter species. I would arrange 

 the synonymy of this group as follows : — 

 Astatus rufiventris, Cress. 



$ rufiventris, Cress. Trans. Amer. Ent. Soc. IV., p. 218. 



bicolor, Fox. Can. Ent. XXIV., p. 232. 

 A. ticoLOR, Say. 



$ $ bicoior, Say. Lee. Ed., I., p. 166. 



terminata, Cress. Trans. Amer. Ent. Soc. IV., p. 2ig. 



A. PYGIDIALIS, FOX. 



pygidialis, Fox. Can. Ent. XXIV., p. 234. (? = var. of bicolor. 



Charles A. Hart, Champaign, 111. 



BOOK NOTICES. 



Histoire Naturelle des Araignees: Deuxieme Edition. Par Eugene 

 Simon : Librairie Encyclope'dique de Roset, Paris, 1892. 

 The first portion of Vol. I of tins most important work has just 

 appeared (pp. 1-256). The work will be divided into four parts : 

 1. External Anatomy; 2. Classification; 3. Biology; 4. Geographical 

 Distribution. Simon arranges the known spiders of the world in 41 

 families ; three families under the suborder Aranece theraphosce ; the 

 remaining families under Aranece verce; the latter is divided into two 



