ACRIDIIDjE. 
Ins» 221 
ScuDDER, S. H. A few notes on N. American Acridii. Canad. Ent. xii. 
pp. 75 & 76. 
Principally on dimorphism in western species. 
Thomas, Cyrus. Notes on Orthoptera. Canad. Ent. xii. pp. 222-224. 
Consists principally of notes also published in the Second Rep. U. S. 
Ent. Com. 
. The Acridi [i] dm of Illinois. Rep. Ins. Illinois, ix. pp. 73-140. 
A monograph of the species known to inhabit the State. It commences 
with a detailed sketch of the structure of the family, with illustrative 
diagrams. Then follows a sketch of classification, in which the family is 
divided into 3 sub-families, viz. : Proscopinm^ Acridiinm, and Tettiginm. 
Afterwards there is a key to the families of Orthoptera ; another to the 
sub-families and groups of Acridiidm, the Acridiinm being divided into 
Truxalini^ (Edipodini, and Acridiini\ then a key to sub-families and 
genera, followed by one to the Illinois species, and a synonymic list of 
the Illinois species, in which 39 are enumerated. Finally, all the species 
are described. In the course of the work woodcuts are given of the 
following : Acridium americanum, p. 81, Stenohothrus maculipennis, pp. 
84 & 102, Tragoceplialus viridifasciata and Ilippiscus phmnicopterus^ p. 85 
(the latter also on p. 117), Caloptenus femur -ruhrum^ p. 86 & 124, C. 
spretus, pp. 121 & 123, C. differ entialis, p. 127. No new genera or species 
appear to be described. At the end of the memoir is a “ Life History of 
Locusts,” notes on “ injuries by grasshoppers,” and “ remedial agencies.” 
For notes on “ the relations between meteorology and the Locust pest,” 
see Cleveland Abbe, in Am. Nat. xiv. pp. 735-738 ; interesting compara- 
tive tables, showing the effect of temperature on the hatching of the eggs, 
are given. 
Acridium americanum in such numbers at Carbondale, Illinois, as to 
frighten horses ; injury to orchards occasioned. C. Thomas, Am. Ent. 
iii. p. 250. 
Gr. J. Bowles gives a popular account of migratory Locusts, in Canad. 
Ent, xii.pp. 130-134, figuring Caloptenus femur -ruhrum. 
Eggs of ‘ Locusts ’ in the Troad destroyed by the larva of some insect 
believed to be Coleopterous (subsequently proved to be Dipterous) ; 
Sir J. Lubbock, P. E. Soc. 1880, p. xxxiii. 
Pachytylus cinerascens in Yorkshire ; W. D. Roebuck, Naturalist, vi. 
pp. 42 & 43. The insects appeared in some numbers in 1880, and it is 
just possible that they breed in the county. 
Stauronotus cruciatus, F.. destructive to olives in Andalusia ; M. Girard, 
Bull. Soc. Ent. Fr. (5) x. p. xxviii. 
(Edipoda. What is the type of the genus? C. Thomas, Canad. Ent. 
xii. p. 222. 
Cephaloccema and Proscopia. Burmeister, Ah. Ges. Halle, xv. pp. 1-17, 
discusses the differentiating characters of these two genera, and unites 
certain described species as only sexes ; thus P. gigantea = oculata, 5 , 
hispida = hrevirostris, $ ^punctata = acuminata^ ? , scabra = rufeornis, $ , 
granulata = ophiopsis, ? . 
