to the extremities of the wing covers. (Fig. 9.) Like the last, it some- 
times assists in migratory flights with G. atlanis and C. femur -rubrum. 
It often becomes locally abundant enough to do much damage to crops. 
In 1877 Mr. Theo. M.Finley, writing from Mies, Michigan, sent us speci- 
mens with the statement that they did considerable damage near Ber- 
rien Springs, Michigan, though confined to a territor}^ of only a mile 
square. Grass and oats suffered most, the last crop being entirely de- 
stroyed. At Fort Wallace, Kansas, in July 1877, this locust was com- 
mon while C. spretus was rare. Other occasional cases of damage have 
been reported, but these are only local occurrences. It does not in- 
crease in sufficient force to spread over any large tract of country. 
Life history and Habits. — We have observed this locust pairing 
in Missouri from the 8th of July to the 18th of August. The first winged 
iusects were noticed July 7. Females were confined in cages through 
July and August, but no eggs were deposited until August 31. Eggs 
kept indoors hatched the last; of December. 
Those kept outdoors began to hatch the middle of March. A gravid 
female opened iu September was found to contain 79 eggs. 
THE PELLUCID LOCUST. 
(Gamnula pellucida Scudd.) 
Range of Species. — Synonym : CEdlpoda atrox. It occurs in Califor- 
nia, Utah, Wyoming, Colorado, ^New Mexico, Montana, Dakota, and in the 
East in Maine, Massachusetts, Vermont, Connecticut. These Eastern 
and Western forms were formerly 
supposed to be two distinct species, 
the name atrox beiug applied to 
the Western specimens and pellu- 
cida to the Eastern; but they have 
been found to show no appreciable 
differences, and must be consid- 
ered the same species. 
Destructive Appearances. — 
Someof the destructivelocust years 
tabulated under Galoptenus devas- 
tatorm&y have been due to Camnula 
pellucida, as the two species have 
doubtless been confused iu these in- 
vasions. This species, however, is known definitely to have occurred in 
devastating migratory swarms in California in 1878, particularly in the 
Sierra Valley, and deposited its eggs by millions on ranches hitherto 
unvisited by them, thus menacing an immense area of country. 
In the previous year, 1877, they ravaged the California coast from 
Point Conception to Santa Barbara, In 1879 they were again abun- 
Fig. 10. — Camnula pellucida 
tou del), 
A 
utuial size (Emer- 
