THE PREDACEOUS DIVING HHETLES. 227 



Lake Wawasee, Kosciusko County; rare. June 1. This spe- 

 cies is close to sewii-itiatux but is larger, broader, more depressed 

 and the male has simple claws. 



441 (1447). AGABUS GAGATKS Aube. Spec. Gen.. VI, 1838, 306'. 



Ovate, subconvex. Piceous, shining ; antemue. legs, head in front, pro- 

 and mesMsterna and sides of thorax more or less reddish brown. Sides of 

 thorax slightly rounded, rather strongly margined. Elytra finely and closely 

 reticulate with dorsal rows of line but evident punctures. Prosternal spine 

 carinate. Length '.)-!>. r> mm. 



Laporte and Vigo counties; scarce. August 26-November 4. 

 Those found on the latter date were taken beneath stones in a damp 

 ravine. 



A. tftnioldhix Ilarr., is recorded from Ohio, New Jersey and 

 Pennsylvania. 



442 (1428). AGABUS DISINTEGRATE Crotch, Trans. Amer. 



Ent. Soc., IV, 1873, 416. 



Ovate, subconvex. Head and thorax dull reddish, the 

 latter with the front and hind margins black; elytra dull 

 yellow, with three or four narrow black stripes. Surface 

 smooth. Length s mm. (Fig. 112.) 



Marion. Vigo and Lawrence comities; scarce. 



Fig. 112. X 3. 

 March 14-0ctol>er 18. (After Wiekham.) 



443 (- -). AGABUS .ENEOLUS Crotch, Trans. Amer. Eut. Soc., IV, 1873, 417. 

 Ovate. Above reddish-brown or reddish-piceous, elytra often with a 



greenish tinge; beneath black or piceous; anteume and legs paler. Thorax 

 strongly margined and with an angulate row of coarse punctures near the 

 hind angles. Elytra very finely punctate and reticulate, with dorsal rows 

 of coarser punctures which are confused towards apex. Prosternal spine 

 subcarinate. Length 6.5-7 mm. 



Lake County; rare. May 23. Taken from the beach of Lake 

 Michigan near Pine. 



444 (1419). AGABUS SEMIVITTATUS Lee., Ann. Lye. Nat. Hist., V, 1849, 204. 

 Rather broadly ovate, subconvex. Black, shining; elytra with an in- 

 distinct snbmarginal yellowish stripe on apical third; antennas and legs 

 reddish-brown. Sides of thorax nearly straight. Elytra finely and obso- 

 letely punctate, the dorsal rows of punctures irregular, rather deeply im- 

 pressed, confused toward the apex. Length X.5-9 mm. 



Lake, Laporte, Putnam, Morgan and Jefferson counties; scarce. 

 May 5-September 5. 



445 (1423). AGABUS SEMIIMNCTATUS Kirby. Faun. Bor. Amer., IV, 1837, 65). 

 Oblong-ovate, convex, the sides rather parallel. Black ; antenna?, mouth 



parts and legs reddish-brown. Elytra of male shining, very finely reticu- 



