PSYCHE. 



NOTES ON THE ACRIDIDAE OF NEW ENGLAND.- 



ALINAE.— V. 



II.— TRYX- 



liV ALBERT P. MORSE, AVELLESLEY, MASS. 



7. Orphl:i..\ Stal. 



Orphitla .Stal. 1S73. Recensio or- 

 thopterorum, i, p. 105. 



According to Bn.mnei's Revision' 

 the three following species belong to 

 Orphula. Giglio-Tos, however, has 

 separated from Orphula (Boll. jSIus. 

 Zool. ed. Anat. comp. R. Univ. 

 Torino, Sept. '94) a group to which 

 he applies the name Orp/nile/la, 

 giving it generic rank, and restricting 

 the former to a single species. To 

 Orphulella apparently belongs our 

 maciilipennis, but our other two 

 species present characters intermediate 

 between the two genera as character- 

 ized by Giglio-Tos. In consequence 

 of this fact and the very great simil- 

 arity of our species I am disposed to 

 regard Orphulella as worthy of sub- 

 generic rank only, and have retained 

 the older name in its wider sense for 

 our species. 



The species of this genus are among 

 the most difficult to discriminate of 

 any of our locusts. It has been only 

 by a large amount of collecting and 

 observation in the field that I am 

 enabled to present anv positive state- 

 ments regarding the forms described. 



so variable are individuals of the .same 

 species in coloi', markings and struc- 

 ture. The characteristic differences 

 of each form are given very fully in 

 the key, but individuals vary so much 

 that no specimen can be determined 

 with entire confidence from a single 

 character; yet bv taking into consider- 

 ation all the differences indicated I 

 have had very little difficulty In identi- 

 fying nearly 3500 specimens, less than 

 halt-a-dozen causing even temporary 

 doubt. 



We have in New England three 

 distinct species of the genus, and I 

 have no reason to think that there are 

 more, though I have not been alile to 

 collect in the extreme north and north- 

 east. These conclusions are practi- 

 cally the same as were published at 

 the time of the description of oliva- 

 celts (Psyche, June, '93)- Our 

 species are best known under the 

 names of Stenohothriis inaculipcnnis, 

 aequalis, and olivaceits. Olivaceus, 

 the last species to be desciibed, seems 

 not to have been previously noticed, 

 but the other two are more or less 

 affected by several names applied to 

 representatives ot this genus from this 

 region; these are: pelidmts Burm., 



