REPOET OF THE ENTOMOLOGIST. 233 



Locust {Melanoplus femur-riibrum, De Geer), the Differential Locust 

 {Melanopliis diffcrentialis, Walker), aud the Two-striped Locust {Melan- 

 oplus bivittatus, Say). 



The Lesser Locust (II/e?ajiop/2<5 atlanis, 'RHej), of which we gave rm 

 accouut iu our annual report for 1883* in relation to its ravages in the 

 Merrimac Yalley^ 2s"ew Hampshire, does not seem to have attracted 

 much attention in 1885, though the following newspaper item doubtless 

 refers to this species : 



Grasshoppers are doing considerable damage to crops, particularly oats, in some 

 sections of New Hampsliire" {Xeio England Fanner, July 25, 1885). 



All other reports of locust injury in 1885 come from regions where 

 the Lesser Locust is not likely to be the predominant species, and where 

 the principal damage has evidently been done by the one or the other 

 of the three species above mentioned. 



The Eed-legged Locust is one of the commonest aud, at the same 

 time, most widely distributed species, ranging from the Atlantic to the 

 Pacific coast and from Mexico and Florida to British Columbia and the 

 Hudson Bay Territory. In the more hilly and mountainous sections of 

 the Atlantic States, and more especially in the New England States, 

 atlnnis usually predominates ; while in the States west of the Alleghany 

 Mountains femur-rubrum is by far the commonest species. This year, 

 it was the most abundant species in parts of Kausas.t Further west, 

 in the home of the Rocky Mountain Locust, Mr. Bruner does not men- 

 tion it among those "native" species which were common the past 

 season in Colorado, but farther north, in the vicinity of Glendive, Mont., 

 he found, July 31, large numbers oX^ femur-rubrum which, however, were 

 less numerous than thellocky Mountain and the Lesser Locusts which 

 occurred in the same region aud at the same time. 



All three of the species mentioned were reported as quite destructive 

 in parts of Iowa, while differcniiaUs proved extremely destructive and 

 caused no little alarm iu parts of Arkansas. 



THE PEEIODIGAL CICADA. 



{Cicada scptcndecim, L.; and race tredecim, Eiley.) 



Suborder Homoptera; Family Cicadid^. 



[Plates I and V, and Fig. 1, Plate YL] 



This interesting insect attracted more than usual attention during 

 the past year by virtue of the fact that two extensive broods appeared, 

 and occupied large areas of the country east of the Mississippi River. 



With a view of meeting the largely increased demand for information 

 upon the subject, as also with a view of getting as accurate information 

 as possible about the distribution of the two broods that were to ap- 

 pear, we published, the latter part of May, Bulletin No. 8, on the Peri- 

 odical Cicada, being a popular illustrated account of the insect, and 

 especially of the different broods that appear in different years and that 

 are so far known. As a revised edition of this bulletin is iu prepara- 

 tion we shall confine our remarks here to some phases of the insect's 



■* Report of the Commissioner of Agriculture for the vear 1883, pj). 170-lSO; Plates 



II, Yii, vm, IX. 



t According to Mr. F. "W. Cragin, in L. Bruner's "First Contribution to a KnowK 

 edge of tho Orthoptera of Kansas," p. 137. 



