332 



PSYCHE. 



[March 1899. 



we find the following characters as- 

 signed to them : " Tete aussi large que 

 le thorax " (p. 32). " Ce genre [Thlip- 

 somyza], dont le caractfere le plus ap- 

 parent est I'abdomen comprime et muni 

 de soles sur les bords des segments, a 

 pour le type le T. cotnpressa, Wied., 

 Bombylins id., Fab., d' Alger. Nous y 

 joignons deux esp^ces nouvelles, 6gale- 

 ment du nord de I'Afrique, dont I'une, 

 le T. heteroptera, diff6re des autres par 

 la premiere cellule post^rieure ouverte. 

 Ces Bombyliers se distinguent encore 

 des autres par les soies qui bordent les 

 segments de I'abdomen." 



Of T. castiwea, he says : " C'est peut- 

 etre une vari^te du T. compressa^^ 



In his specific descriptions, Macquart 

 gives a quite different type of coloration 

 for his species, and in his figure of 

 T. hetcroptera the bristles of the abdo- 



men are conspicuously indicated. Fur- 

 thermore, the abdomen, like the whole 

 body, is bare and elongated. All of 

 these characters are so " himmelweit" 

 from the Bombylius type, to use Wiede- 

 mann's own expression, that one is sur- 

 prised that the identity of our forms 

 should have occurred to Mr. Coquillett. 

 It is interesting to observe that both 

 Schiner and Loew refused to accept 

 Amictus Wied. as being distinct from 

 Thlipsomyza, based as it was chiefly 

 on the open or narrowly closed first 

 posterior cell, the sole character assigned 

 to Thlipsogaster by Rondani. Euryca- 

 renus Loew seems to be a nearly allied 

 genus. 



The moral of it is that Rondani's 

 genera, like Walker's species, are to be 

 accepted with fear and trembling. 



ARKANSAS MELANOPLI — I. 



BY JEROME MCNEILL, FAYETTEVI LLE, ARK. 



The recent publication of Scudder's 

 excellent Revision of the Melanopli 

 by making it possible to recognize 

 with certainty those species which have 

 already been described suggested the 

 propriety of placing on record the 

 species of this group which are known 

 to occur in Arkansas. This seemed to 

 be the more desirable because almost 

 nothing is known of the Orthopteran 

 fauna of this State. The list here given 

 is undoubtedly very far from complete 



as the collections upon which it is based 

 have been made almost entirely in the 

 seven or eight counties of Northwestern 

 Arkansas. Altogether nineteen species 

 representing six genera are known. | 

 Melanoplus includes fourteen of these j 

 species and two of these Mel. baconi 

 and Md. sylvaticus are apparently unde- | 

 scribed. Two others Md. impudicus 1 

 Scudd. and Md. impigcr Scudd. were , 

 described very recently in Scudder's 

 monograph cited above. | 



