THE CLICK BEETLES. 



KEY TO INDIANA SPECIES OF GLYPHONYX. 



a. Front of clypeus distinctly anguiated. 



b. Head at least, and usually the sutural line, dusky. 



6. Larger, more robust; third and fourth tarsal joints lobed beneath; 



length 5.5-6 mm. 1402. recticollis! 



ce. Smaller, more slender ; fourth tarsal joint only lobed beneath ; 

 length 4.5-5 mm. 1403. inquinatus'. 



bb. Color uniform dull reddish-yellow or "rufo-testaceous" ; length 4- 



5 - 5 miU - 1404. TESTACEUS. 



aa. Front of clypeus rounded or very obtusely anguiated; color sooty or 

 blackish-brown; length 4.5-5 mm. 1405. quietus. 



1402 (4299). Glyphonyx recticollis Say, Journ. Phil. Acad. Nat. Sci 



III, 1823, 168 ; ibid. II, 109, 622. 

 Elongate-oblong, slender. Dull brownish-yellow; head, disk of thorax 

 and sutural margins dusky ; legs and antennae paler. Clypeus strongly de- 

 scending with the apex almost rectangular. Second and third joints of 

 antennae short, subequal, together one-half longer than fourth. Thorax as 

 broad as long, sides straight, rounded on apical fourth; disk rather sparsely 

 and finely punctulate ; hind angles not carinate, scarcely divergent. Elytral 

 striae punctate; intervals subconvex, with numerous minute punctures. 

 Length 6 mm. 



Southern two-thirds of State; frequent. March 8-November 1. 

 Readily known from the next three by its larger size. 



1403 ( 4302). Glyphonyx inquinatus Say, Trans. Amer. Phil. Soc, VI, 



1836, 175 ; ibid. II, 611. 



Elongate-oblong, slender. Pale brownish-yellow, rather densely pubes- 

 cent with long yellowish hairs; head and often a narrow sutural line dusky. 

 Thorax slightly broader than long; sides nearly straight, slightly rounded 

 on apical fourth, hind angles acute, not carinate, feebly divergent ; surface 

 finely and densely punctate: Elytra with finely punctured striae; intervals 

 nearly flat with minute punctures. Length 4.5-5.5 mm. 



Southern half of State; frequent. January 5-December 25. 

 Hibernates beneath rubbish along fence rows and in dry, open 

 woods; most frequent in June on vegetation. 



1404 (4300). Glyphonyx testaceus Melsh., Proc. Phil. Acad. Nat Sci 



II, 1S45, 219. 



Resembles recticollis but smaller and entirely dull reddish-vellow in 

 color. Thorax with sides straight except immediately at apex, where they 

 are rounded; hind angles not divergent. Clypeus acutely anguiated at 

 apex. Length 4-5.5 mm. 



Throughout the State; frequent. April 6-December 23. Oc- 

 curs in spring beneath chunks and stones in sandy localities; in 

 summer on foliage. 



