176 On Aquatic Carnivorous Coleoptera or Dytiscide. 
“‘G. heffneri Aubé (nec Thoms.), valde affinis, vix nisi prothorace angustiore, statura paulo minore 
coloreque magis piceo distinguendus.” 
Very rare, taken by Miklin in Muonioniska ; I have found it in stagnant water on the top of a high 
hill at Kilpisjarvi in Lapland (69°), d. 24 Aug., 1867. 
1298. Gaurodytes leptapsis, Lec., Proc. Am. Phil. Soc. 1878, p, 596. North America. 
‘‘ Fem. Elongate-oval, less obtuse than usual, black with a slight bronzed tint, opaque finely strigose 
with lines forming very elongate meshes ; antenne, palpi, front and middle legs tinged with piceous. 
Head less opaque than the prothorax, the sides of the latter are oblique, finely margined and scarcely 
rounded. Elytra with the usual rows of punctures indistinct. Beneath shining, finely reticulate, 
mesosternum acutely emarginate, hind tibize sparsely, coarsely punctured, margined on the inner side, 
but without a very distinct row of punctures. Front and middle thighs distinctly not densely punctured. 
Length 9-7 m.m., 38 inch.” . 
“ Marguette, Lake Superior ; one specimen. This species is as elongate as G. parallelus, but less 
obtusely reunded, and is easily recognised by the peculiarly elongated meshes of the reticulation. The 
prosternum is obtusely carinate.”’ 
1299. Gaurodytes longulus, Lec., Proc. Am. Phil. Soc., 1878, p. 596. North America. 
“ Hlongate-oval, obtuse at each end, not convex, shining, smooth black, with a slight metallic gloss. 
Antenne, palpi and feet tinged with piceous. Prothorax with sides oblique, finely margined ; apical and 
basal rows of punctures strongly marked. Elytra with the rows of punctures strongly marked. Pro- 
sternum acutely carinate; mesosternum deeply ; front and middle thighs punctured and rugose; hind 
tibiz smooth, with a few small punctures at the inner margin and some larger ones along the outer 
margin. Length 9 m.m.; ‘35 inch.” 
“ Mas. Smooth but not polished ; claws of front tarsi long, not toothed, curved only near the tip.” 
“ Fem. Scarcely perceptibly punctulate ; claws of front tarsi not so long, and regularly curved.” 
y | if yf i ; 8 s \ 
“Lake Superior; the elytra vary from brown to black, with only the edge brownish. The form is 
exactly as in G. parallelus, from which it differs greatly by the other characters.” 
1300. Gaurodytes lutosus, Crotch, Tr. Am. Ent. Soc. IV, p. 419. North America. 
“ Ovate, convex, black, above bronzed ; legs, epipleuree and margins of ventral segments rufescent ; 
thorax short, sides rounded, broadly margined, posterior angles obtuse ; elytra subopaque closely covered 
with short anastomosing striz, dorsal series visible, confused behind ; posterior femora sparsely punctulate, 
tibiee punctate, tarsi with the last joint elongate. _M/as, anterior tarsal claw obtusely dentate. Length 
-40 inch,” 
“Slave Lake, Kansas, Lake Superior. Posterior claws extremely small.” 
According to a female individual recently received from Leconte, this appears to be the same as 
Agabus nigro-eneus Er.; but a comparison of the males is desirable before the identification can be 
considered certain.—D. 8. 
1301. Gaurodytes obovatus, Sahl., Not. fenn. XIV, p. 176. Russian Lapland. 
“ Obovato-oblongus, modice conyexus, postice obtuse rotundatus, nigro-eneus, elytris lateribus, anguste 
indeterminatim, pedibus totis, antennis palpisque ferrugineo-testaceis, his articulo ultimo basali excepto, 
illis articulis exterioribus apice piceis, elytris subleevibus, prothorace lateribus modice rotundato. Long. 
3) lin.” 
