Dec, '07] ENTOMOLOGICAL NEWS. 435 



Genus BELOSTOMA Latreille (= Zaitha Auctt.). 



B. aurantiacum Leidy {—lutaria Stal). Raleigh, April, 1900 ; May 25, 

 1905 



This species appears to take the place in the southern States 

 of our common northern B. flumineum Say. 



B.flumineum Say. Raleigh, April 16, 1906. 



One specimen only of this species which appears to be only 

 of rare occurrence around Raleigh. Another specimen was 

 taken in the spring of 1905. 



B. testaceum Leidy (=Zaitha reticulatum Haldeman). Raleigh, April* 

 1900 ; in 1906, April 12, June 11 (1), August 8, (4), 9 (2). 



A far from uncommon species which also occurs sparingly 

 in the north. 



Family CORIXIDAE. 



A number of species in the genus Corixa have been taken 

 from time to time, but in the present chaotic condition of the 

 American species of the genus it has been thought best not to 

 attempt to list them. 



Family NOTONECTIDAE Leach. 



Subfamily Notonectinae Kirkaldy. 



Genus NOTONECTA Luang. 



N. undulata Say. Raleigh, November 9, 24, 1904. 



The usual forms in this species, which is hot at all common. 

 This species has been taken only in the pool in Green's rock 

 quarry where it is usually abundant, except on Noveml>er 23, 

 1905, when some were taken in a pool in Walnut Creek low- 

 grounds. Mr. Sherman also took it at Warsaw, Duplin Co., 

 North Carolina, May 19, 1905. 



N. irrorata Uhler. Raleigh, 1905, March 21, 29, October 16, Novem- 

 ber 13, April 7, June II, 4 newly transformed specimens, August 8. 

 Taken by Mr. Sherman at Warsaw, May 19, 1905. 



N. variabilis Fieber. Lake Ellis, May 14, 1906. 



Three specimens which are placed here provisionally. They 

 are slimmer than the usual run, but in the absence of a minute 

 scrutiny no good characters have been found. 



