REPORT ON NATIONAL MUSEUM. 175 



Rlley, Charles V. — Continued. 



ington Territory, and reports favorable prospects of immunity from ravages 

 of Caloptenus 8pretu8 in 1882, 



A new depredator infesting wheat stalks. 



(Amer.Nat.,Mar., 1882, xvi, pp. 247-248, fig. 1.) 



This insect was described as a new wheat pest, under the name of Isosoma 

 alhjnii, by G. H. French, in Prairie Farmer, 31 Dec, 1881 ; and in his " Two 

 new species of Isosoma" (Can. Entom., Jan., 1882, xiv, pp. 9-10), is aspeciea 

 of Eupelmus, doubtless parasitic on some of the wheat-stalk feeders and prob- 

 ably on some species of Chlorops; habits and figures of larva are also given 

 and descriptions of female imago of Isosoma triti(n n. sp. (previously charac- 

 terized by author in Rural New Yorker, March 4, 1882), which is injurious to 

 wheat; gives comparison between /. tritica and/, hordti ; states doubt con- 

 cerning the habits of /. lineare of Europe, and the relative conspicuousness of 

 the " humeral spot " in European, American, and Australian species of /sosoma. 



— Further notes on the imported clover-leaf weevil, Phytonomus 



pmictatus. 



(Amer.Nat.,Mar., 1882, xvi, pp. 24S-249.) 

 Specimens of a variety of Phyionomtis j)unctatus, supposed to have been col- 

 lected in Canada in 1853, and in Pennsylvania, described by LeConte as P. 

 opimus, in 1876 ; citations of other instances in which injurious insects have 

 been overlooked for a long time, or scantily collected ; probability that plant- 

 feeding coleoptera imported from Europe will not spread far from the Atlantic 

 coast ; some such species, injurious in Europe, are thus far innoxious in this 

 country; hibernation of and means against P.punctatus. 



Possible food-plants for the cotton- worm. 



(Amer. Nat., April, 1882, xvi, pp. 327-329.) 



Aletia argillacea is, so far as known, strictly confined to Gossypium as a food- 

 plant ; locality list of the Malvaceae of northeastern United States, upon some 

 of which plants the larva of the Aletia will probably be found ; physical char- 

 acters and geographical distribution of Urena Johato, on which larvae of 

 Anomis erosa occur ; egg and larva of the Anomis and the Aletia. 



Lichtensteiu's theory as to dimorphic, asexual females. 



(Amer. Nat., May, 1882, xvi, p. 409.) 



Criticises J. Lichtenstein's theory that "winged female" Aphides and 

 "asexual female" Cynipids are larvae and their eggs pupae; corrects errors 

 in the comparison of these forms with the hypermetamorphotic stages of 

 MeloidcB. 



Injurious insects in California. 



(Amer. Nat., May, 1882, xvi, p. 410.) 



Notice of Matthew Cooke's "A treatise on the insects injurious tofruitand 

 fruit-trees of the State of California, 1881," with indication of a few errors in 

 specific determination. 



The cotton- worm. How its ravages may be prevented and the insect 

 destroyed. What an eminent entomologist has to say on the sub- 

 ject. 



Some facts of interest to planters in the flooded district. 



(N.O. Times-Democrat, May 7, 1882.) 



States probability of unusual injury to the cotton crop in the Mississippi 



