268 THE CANADIAN ENTOMOLOGIST. 



Wabash River, near Grand Chain, Posey County, Indiana. Snow a foot 



or more deep fell during the ensuing night and lasted several days, 



precluding further search at the time. Grand Chain is not a post office, 



but a series of rapids in the Wabash, about 20 miles above its mouth, and 



about seven miles below New Harmony, the home of Thomas Say. The 



Government has here done much work in trying to render the river 



navigable. For a number of years, about 1880, this work was under the 



supervision of Dr. Stein, and his specimen was doubtless secured near the 

 same place. 



I can find no reference to P. quadri?naculatiis in any list or paper 

 other than the original description by florn.f He described it from a 

 single female "collected by Mr. K'ages, February 27, 1881, under the 

 bark of a fallen gum tree near Ovvensburgh, Kentucky (banks of the Ohio 

 River, near Louisville)." Grand Chain is about 45 miles north west of 

 Owensboro, Kentucky, which is probably the town which Dr. Horn had 

 in mind. The beetle doubtless belongs to the Austroriparian Fauna of 

 the Lower Austral life zone, which extends over the greater part of the 

 southern third of Indiana, J and should be sought for on the wooded slopes 

 of the larger streams in early spring. 



Quadrimaculatus is the most handsome of the 38 species of 

 Platymcs which I have taken in Indiana, reminding one of some of the 

 more highly-coloured members of the genus Badister. Its most salient 

 characters as given by Horn are as follows : 



"Rufo-testaceous, sides of abdomen piceous, head black, elytron 

 black, with a large humeral spot confluent with that on the opposite side, 

 another very little smaller near the apex. Thorax somewhat cordiform, a 

 little longer than wide, narrower at base, apex feebly emarginate, base 

 truncate, sides in front arcuate, posteriorly sinuate, hind angles rectangu- 

 lar, but not prominent, an extremely narrow reflexed margin. Elytra 

 oval, broader behind, humeral angles much rounded, body feebly winged, 

 striate, striae obsoletely punctured, intervals flat, alutaceous, dorsal 

 punctures three, on the third interval close to the third stria. Length, 

 7.5 mm." 



ITrans. Amer. Ent. Soc, XII., 1885, p. 130. 



JSee article entitled "The Life Zones of Indiana as Illustrated by the Dis- 

 tribution of Orthoptera Within tlie State," in the author's "Orthoptera of Indiana," 

 1902, p. 461. 



