16 
2508. 
SMO), 
DIMNZ 
2514. 
Zoiloy 
oe 
BOS. 
DOS ke 
DISS); 
2543. 
INO): 
AOS) 
2556. 
DIS 
“NOX 
AN) lo. 
2580. 
2594. 
2598. 
2600. 
2602. 
2603. 
2605. 
2610. 
STATEN ISLAND INSTITUTE OF ARTS AND SCIENCES 
Hydroporus signatus Mann. March, May, June, July, 
Sep 
Flydroporus dichrous Melsh. May, July, Aug. 
Hydroporus mornatus Sharp. February. 
Hydroporus mger Say. Jan., April, May, July, Aug., 
Septem Oct 
Hydroporus ruficeps Sharp. July, August (Sherman). 
Hydroporus stagnalis G. & H. Grasmere, July (Sher- 
man) ; June. 
Hydroporus oblitus Aubé. S. I. (Sherman). 
Hydroporus difformis Lec. April, May, June. 
Agabus seriatus Say. April, August. 
Agabus obtusatus Say. 
Agabus punctatus Melsh. April, May, Aug. (Sherman) ; 
June. 
Agabus semipunctatus ISirby May, woodland pools 
(Sherman). 
Agabus teniolatus Harr. S. 1. (Linell). Not recently 
found. 
Agabus disintegratus Cr. May, July, Dec. 
Agabus reticulatus Kirby. oe (Shoemaker). July 
(Sherman). 
Agabus erythropterus Say. 
Agabus gagates Aubé. June, July, August. 
Ilybius ignarus Lec. June (Thompson). It is reported 
from Rockaway Beach, Long Island, by Sherman. 
Ilybius biguttulus Germ. Feb., May, June, July, Aug., 
SAP, et. 
Tlybius confusus Aubé. July (Sherman). 
Agabetes acuductus Harr. May, June, July, Sept. 
Matus bicarinatus Say. April, May, July, Aug., Oct. 
Copelatus glyphicus Chev. April, May, Aug. 
Coptotomus interrogatus Fab. April, June, July, Aug., 
Sept., Oct. Bred from a larva found among wet leaves 
at margin of the “ Ink-well Pond.” 
