- 



BOLLETTINO 



DUI 



Musei di Zoologia ed Anatomia comparata 



, , , q £— della il. Uiiiversith «li Torino 



' A le [ * 



N. S47 pubblicato il 9 Maggio 1899 Vol. XIV 



G. W. KlRKALDY 



0n some AQUATIC RHYNCHOTA from South America 



in the colìections of the Museum of Zoologi) and Comparative Anatomy 

 of the Royal University of Twin. 



The following notes and descriptions deal with the Rhynchota belong- 

 ing to the families Gerridae, Corixidae, & Notonectidae, collected in 

 South America by Dr. Borelli & by Dr. Festa. The representati ves of 

 these families in that vast continent have received little attention (1), 

 and my thanks are due to the Direction of the Museum, through Dr. 

 Achille Griflìni, for sendingt hese interesting colìections to me for exam- 

 ination & for permitting me to study them at my leisure. 



Our knowledge of the aquatic Rhynchota of the Neotropical Region 

 is altogether too scanty for me to profitably discuss the distribution of 

 the species bere enumerated; the great range of two or three species 

 will, however, be remarked, viz; Corixa Rollarti, C. pygmaea, Noio- 

 necta bi fasciala, Anisops Antigone and A. elegans. 



Agreeably to Dr. GrifHni's request, I divide this paper into four parts, 

 viz: the insects collected 



1 by Dr. Festa in Darien & Venezuela, 



2 by Dr. Festa in Ecuador, 



3 by Dr. Borelli in Paraguay & Argentina, 



4 by Dr. Borelli in Bolivia. 



(1) The only papers ofany extent are Berg's invaluable « Hemiptera argen- 

 tina » and various shorter papers by tlio same author; F.B. White's descriptions 

 of Rhynchota from the Amazon Country; and one or two papers (recently 

 published) by Breddin. 



