INSECTA, RHYNCHOTA. 
399 
Belg. 1872, pp. xviii-xxiii. Koppen, in considering the enormous area over 
which the species has been found, gives three distinct limits for its distribu- 
tion : — (1) countries in which it permanently breeds ; (2) those beyond these 
in which it continues for a few years and then disappears ; (3) those to 
which its migrations are occasionally extended, but where it never breeds. 
De Selys-Longchamps (/. c. pp. xxiii & xxiv), in continuation of De Borre's 
remarks, points out that two species are commonly confounded under P. mi- 
gratoriiis, viz. this and P. cinerascens, F. ; and he states that in Belgium the 
former is only of occasional occurrence, whereas the latter appears every 
year in certain localities, and no doubt breeds in the kingdom. 
Extracts from a South Australian newspaper respecting the ravages caused 
by locusts " in that colony appear in P. E. Soc. 1872, pp. xii-xvii. 
CEdipoda pruinosa, Thomas, = trifasciata, Say ; Boopedon nigrum, Thomas, 
= nubilum, Say: Thomas, Geolog. Survey of Wyoming, p. 273. 
Acrolophitus, g. n., id. I. c. p. 278. Type Gryllus hirtipes, Say. 
New species : — 
Stenohothrm obionus, p. 279, brunneus, p. 280, Caiaon City, quadrimaculatus, 
p. 280, S. Colorado : id. I c. 
Acridinm ambiguum, id. Geolog. Survey Montana, p. 447, S. Illinois, 
Kansas, and Tennessee ; frontalis, p. 448, pi. ii. fig. 1, Kansas. 
Caloptenus dodgii,id. Canad. Ent. iii. (1871) p. 168, Pike's Peak, Colorado ; 
viridis, id. Geolog. Survey Montana, p. 450, Colorado, Wyoming, and Kansas ; 
turnbulli, p. 452, pi. ii. fig, 10, and occidentalis, p. 453, pi. ii. fig. 2, Wyoming ; 
griseus, p. 454, Ohio. 
Pezotettix obesa, p. 454, pi. ii. figs. 13 & 14, between Idaho and S. Mon- 
tana ; nebrascensis, p. 455, Nebraska : id. I. c. 
CEdipoda undidata and haydeni, p, 460, Colorado and Wyoming ; kiowa, 
p. 461, Colorado ; gracilis, p. 461, Colorado and Wyoming ; wyomingana, 
p. 462, E. Wyoming; montana, p. 462, S. Montana; longipemiis, p. 463, 
Texas ? : id. I. c. 
Stenobothrus bicolor, p. 465, Colorado and Wyoming : id. I. c. 
Oxycoryphns obscurtis, p. 466, Wyoming : id. I. c. 
RHYNCHOTA 
By E. C. Rye. 
HEMIPTERA-HETEROPTERA. 
Bold, Thomas John. A Catalogue of the Insects of Northum- 
berland and Durham. Hemiptera-Heteroptera. Tr, 
North. Durh. iv. (1872), pp. 348-369. 
151 species (1 new) are enumerated, with notices of localities, and occa- 
sionally of habits &c. 
CzERNAY, A. [See Ivanoff, P.] 
2 D 2 
