2G [July. 
Notonecta maculata, Fab. — This species, hitherto received only from the 
West of England, haa been fonnd in clay pits at Lee. 
Corixa Panzeri, Fieb.— Two or three in a pond at Esher. It is con- 
siderably smaller than G. Oeoffroi/i, which in the character of its 
markings it greatly resembles, but the lines on the pronotum are 
lees in number, straighter, and wider apart. 
Corixa affinis, Leach. — One only at Lee. 
Corixa disfincfa, Fieb. — Common at Lee. 
Corixa prcBusta, Fieb. — New to our list. A few taken in one pond at 
Lee ; it has also been found at Cowley by Dr. Power, both in 
autumn and early spring, but one was first captured by Mr. Scott 
at Eltham several years ago, and overlooked. It has not occurred 
since April, although other species then existing with it remained 
five or six weeks later ; hence it may be deemed to be a species 
that dies early in the season. The first joint of the yellow hinder 
tarsi is traversed posteriorly by a broad black band (very clearly 
seen on the under-side), which at once distinguishes this species. 
Corixa concinna, Fieb. — Occurs sparingly at Lee and Esher. The first 
joint of the hinder tarsi has a large blackish spot on its inner side 
only, not extending across it as in C. prceusta, but spreading a 
little only on the second joint, and being covered by the cilia, may 
be overlooked. 
Corixa nigrolineata, Fieb. — Abundant in ponds at Lee, Eltham, Esher, 
&c., in spring, also in running water at Southampton in September. 
Distinguished from all its allies by the dusky yellowish (not 
blackish) cilia of the hinder tarsi. 
Corixa semistriata, Fieb. — Scarce at Lee. 
Corixa limitata, Fieb. — Common at Lee. 
Corixa liieroglyphica, L. Duf. — Common at Lee. A constant and dis- 
tinguishing character is the blackness of the last joint only of the 
posterior tarsi. 
o 
Corixa Stali, Fieb. — Abundant in a ditch at Gravesend. It is much 
like the following species, but is rather smaller, and the pleurae and 
parapleurfe ai*e yellowish on the outside only. 
Corixa lugiibris, Fieb. — Common at Gravesend and Lee. This species 
has the sternum black, like the last mentioned, but the pleurae and 
parapleurte are entirely light yellow. 
