12 



Dr. Chas. Pickerinsi), p. 201-202. c. The hind winojs of cockroaches and 

 earwigs are foldetl in repose in a very complex manner (by S. H. Scudder), 

 p. 236. (1. The presence of white ants in New England threatens us with 

 dangers (by H. A. Hagen), p. 242. e. Sijritla pqyiens and CJiry soph cunts 

 americann engage in the cross fertilization of the dandelion, upon which 

 flowers CoVias j^ldlodice and Pieris rapae are also noticed (by G. Dimniock), 

 p. 401. 



* 730. H. A. Hagen. Synopsis of the Odonata of Amer- 

 ica, p. 20-96. [Aug. — Oct., 1875.] 



'' A complete list of all species hitherto described or known to me " [the 

 author] (except the subfamily Agrionina), with localities and synonymy. 

 Enumerates " 480 " (about 258 N". A.) names, about 90 of which apply, 

 however, to species of which no descriptions have ever been published, 

 some of these names being nearly twenty years old, and at least 15 to 

 species never described and not known to the author! 



* 731. S. H. Scudder. On Fossil Insects from Cape 

 Breton, p. 113-114. [Oct., 1875.] 



Notice of a fossil Odonat larva, possibly that of Haplopldelhnn Barne.m, 

 and of some previously found related fossils. 



* 732. H. K. Morrison. Notes on the Noctuida. p. 114- 

 126. [Oct., 1875.] 



Describes Dicopis eleclilis, Agrotis digna, A. infracta, A. manifesta, A, 

 oblala, A. pi-aejixa, Mameslra repentina, M. ectj/pa, M. rm/osa, Segetia 

 mersa, Nonagrki laeta^ HellopliUa pertracta, Caradrina derosa, Cucullia luna, 

 Chariclea pretiosa, Schinia media. Polenta, Tarache obatra, Homophoberia 

 H. cristata = 2 n. gen., 18 n. spp.; describes Sijneda grapliica var. media n. 

 var.; Y^-da^i^vW^s Agrotis claviformis, Caradrina tarda] Agrotis gilvipennis 

 = A. chardinyi; Mameslra riifula and M. hrassicae ^ M. htbetis; Anthoecia 

 sp raguei =. A . arcifera. 



* 733. C. R. OsTEN Sacken. Note on some Diptera from 

 the Island Guadalupe (Pacific Ocean), collected by Mr. E. 

 Palmer, p. 133-134. [Nov., 1875.] 



List of 12 species of Diptera [11 determined only as to genus], Micromus 

 (Berotha) flavicornis [found also in the U. S.], and one undetermined 

 species each of Psocus, Aphidae, Psyllidae and Ophion, recorded for future 

 reference. 



* 734. C. R. OsTEN Sacken. On the North American 

 Species of the Genus Syrphus (in the narrowest Sense), p. 

 135-153. [Nov., 1875.] 



Geographical distribution of the genus ; detailed comparison of .S*. forvus 

 and S. rectus, with the supposition in view that they may be seasonally 

 dimorphic forms of one species, identical with S. topiarim—vitripennis— 

 ribesii of Europe [see Rec, No. G83]; analytical table of the 10 species de- 



