22(5 i-'Ajni.Y IV. — t)Y-i-is('ii).io. 



A. crj/tJiropto'us Say. A. ycticulatus Aiibe and ^i. ohtusatus 

 Say are members of the boreal faima known from ^Massachusetts to 

 Lake Superior and perhaps occur in northern Indiana. 



4::;f; (1433). Agabus axthracixus Maim.. Bull. Mosl-.. II, ISX. 304. 



Oval, moclerately couvex. Black, subopaque; autenmie, palpi aud leijs 

 reil<lisli-l)r(nvn. Upper surface ever.vwhere finely and deusely reticulate. 

 El.\-tra with a few fine scatttreil punctures toward apex. Presternum dis- 

 tinctly widened behind the front coxae, subcarinate its full length. Front 

 aud middle tarsi of male with distinct but small disks. Ireugth ii-l.ij mm. 



Kosciusko Clounty; rare. June 1. Taken from border of 

 sphagnum marsh. A boreal species ranging to Hudson's Bay and 

 Alaska. 



4:!7 (i«0(l). Agabu,s coxfixis Gyll., Ins. Suec, I. 1S27. 511. 



Oblong-oval, convex. Head, thorax and under surface black; elyti-a 

 darlc brown, polished ; antenufe, front legs and margins of elytra reddisli- 

 brown ; hind femora piieous. Elytra sparingly and irregularly punttate. 

 Length 8.5-1X5 mm. 



Lake and Lai^orte counties; frequent beneath rubbish along the 

 shores of Lake Michigan, ilay 5-Xovember 9. 



4.')S (1411). Agabus sekiatus Say. Trans. Amer. Phil. Sue.. II. ISU",, !I7; 

 ibid. II. 511. 

 Obloug-ovate. subconvex. Black, slightly bronzed, shining; antenna" 

 and legs dark reddish-brown. Elytra very finely and closely reticulate, 

 with two or three dorsal rows of punctures evident but indistinct. Length 

 !i-10 mm. 



Vigo and Posey counties; scarce. April 2-1— October 20. In 

 Vigo County taken from beneath stone in liottom of deep ravine. 



43!» (1421). Agabcs PiNcTATUs Melsh.. I'roc. Phil. Acad. Nat. Sci.. II. 

 1S44, 127. 

 Sliiirt. ovate, convex. Head, antennre aud legs reddish-brown; thorax 

 and elytra darker brown; under surface piceous. Thorax with sides nearly 

 straiglit. the mar,gin ilistinct. Elytra with irregular dorsal rows of pimc- 

 tures and numerous additional scattered tnies on apical half. Outer spur 

 of hind tibi:e broad and large. Length 7.5-8.5 mm. 



Lake and Clarion counties. ;\larch 14r-June 4. Common in 

 woodland pond near Broad Ripple in early spring. 



440 (1417). AGABrs STAGMNis Say. Trans. Amer. Phil. Soc. II, 1823. 100; 

 ibid. II, 513. 

 Broadly ovate, snlideiiressed. Black or pireons. slightly bronzed above, 

 shining; under parts reddish-brown; vertex with two small reddish spots. 

 Sidi's of thorax but little rounded, strongly margined. Elytra very finely 

 reticulate, with an indistinci submarginal yellowisli stripe on apical hali' 

 and three rows of rather large punct\n-es. Length 10 mm. 



