﻿OF THE STATE ENTOMOLOGIST. 5T 



palpi. Thorax of the same color, paler behind ; the collar pale lilaceons, with a white 

 upper border strongly separated from the dark anterior border of teguire ; three white 

 streaks, one medial and one on each tegula. Anterior legs dusky in front, other- 

 wise, with body, ochraceous. Antennai simple ; having but the faintest fringe of hairs 

 in the male. Eighty-four bred specimens from wheat-feeding larv;e examined. 



The above description applies to typical \yestern specimens of the Summer 

 brood. 



As in every case where I have studied large material, the species proves quite 

 variable. The dark marks may have an olivaceous hue, or they may so predominate 

 as to form the ground-color of primaries, with the white medial line well relieved , but 

 the pale shades above and bel(>w it reduced to streaks. The discal spot is either obso- 

 lete, single, or double, and somewhat reniform ; the orbicular spot is sometimes indi- 

 cated ; the tapering dark shade inclining from apex reaches either to disc only, or 

 extends to base of wing ; the brown-black streaks may be sub-obsolete ; the apical angle 

 varies in acuteness, and the posterior border in obliqueness ; the terminal line may be 

 broken into more or less distinct dots ; and finally, there may be a series of distinct 

 dots between the veins along the inside of terminal shade, and streaks between the 

 veins, recalling phragmatidicola. 



Not one of the Summer brood has the hind wings "smoky, blackish " that char- 

 acterizes Harveyi as described by Grote ; but two Spring-bred specimens, below aver- 

 age size, accord with his description very well, even to the narrower primaries and 

 scarcely obliquing posterior border. Harveyi (and perhaps also Hiibner's figure) may, 

 therefore, be considered the Spring form of albilinea, just as I have proved by breed- 

 ing that Pieris vernalis is but the Spring form of P. protodtce. Indeed the tendency to 

 smaller size and deeper color in broods that hibernate in chrysalis is very general. 



THE ROCKY MOUNTAIN LOCUST— Caiopte?ius Spretus, Thomas. 



[Ord. Orthoptera ; Fam. Acridid.e.] 



This scourge has continued to vitally concern our people and the 

 people of the western country east of the Rocky Mountains. After 

 the fearful ravages which it committed in 1874 and 1875, it will be 

 interesting to take note of its doings in 1876. 



It will be remembered, that, in opposition to contrary opinion widely circulated, I 

 expressed my belief, a year ago, that in Missouri, Kansas and Nebraska, first, there 

 would not hatch as many locusts in the spring as would naturally hatch in ordinary 

 seasons from indigenous species ; second, that, compared with other parts of the coun- 

 try, those States most ravaged by locusts in the spring and early summer of 1875 would 

 enjoy the greater immunity, during the same season of 1876, not only from locust inju- 

 ries, but from the injuries of mostother noxious insects; that, in short, the people of 

 the ravaged section had reason to be hopeful rather than gloomy; that they certainly 

 would not suffer in any general way from locust injuries in the early season ; and that 

 the only way in which they could suffer from the migrating pest was by fresh swarms, 

 later in the year, from the far Northwest. — Kep. 8, 155-6. 



Like the other opinions as to the future doings of this insect that 

 I have felt warranted in expressing in an unqualified way, this last 

 was fully justified by subsequent events. 



