74-1 FAJIILY XXXVII. ELATERII)^:. 



1405 (4301). Glyphonyx quietus Say, Traufe. Amer. Phil. Soc, VI, 1S36, 

 184; ibid. II, 022. 



Elongate, slciiiler, coiive.x. Blackisli-bi'own or ])iceiius, rathei* densely 

 elothecl witli sburt yellowish hairs; autenn;e reddish-brown; legs pale yel- 

 low. Clypeus obtusely rounded in front. Thorax as in rectiooUis, the hind 

 angles scarcely diverging. Tarsal claws with few rather robust teeth. 

 Ijcngtb 4.5-5 mm. 



Southern half of State. .Marshall (Idunty only in the north; 

 I'requent. Mart-h 25-June 10. Beaten from vegetation. 



XXXIII. MELAxoTf^s Esch. 1829. (Gr., "black -f back.") 

 This genus contains a number of small or moderate-sized click- 

 beetles, usually uniform dull brown in color and having the clypeus 

 margined in front; antenna? serrate, with the first joint broad, the 

 second and third variable; presternum lobed in front, the sutures 

 double and concave on outer side; hind coxal plates gradually 

 dilated inwards and toothed above the insertion of the thighs ; tarsi 

 not lolxd beneath, the claws with distinct, comb-like teeth. The 

 males usually have the antenna! .joints pilose or clothed with erect 

 bristling hairs. 



The larvfe of three or four of the species are among the most 

 destructive of the wii'cworms. The adults usually occur beneath 

 bark or on the foliage of trees, to which their ])eetinate claws en- 

 able them to I'cadily cling. They are so similar in form and hue 

 that they are vci'y difficult to separate. There is no special litera- 

 ture on the genus, the descriptions being widely s;^attered and many 

 of them doubtless synonymous, and tlic group has given me more 

 trouble than any other genus treated in the paper. All the Indi- 

 ana specimens have been compared with such types and named spe- 

 cies as are in the Horn collection at Philadelphia and the LeConte 

 and JMclsheimer collections at Cambridge. Of the 45 species listed 

 from the United States, 19 have been taken in Indiana, while 9 

 others are hcrcAvith described for the first time. For convenience 

 they are first separated into two groups and these in turn into 

 species. 



KEY TO GEOrPS OP IKMANA SPKCIES OF MELAKOTUS. 



(I. Third joint of antenii:e but little if any longer than second, the two 



together almost always shorter than fourth. Group .1, 



aa. Third ,1oiut of antemue at least one-half longer than second, tbe two 



together equal to or longer than fourth. Group B. 



Group A. 

 This group comprises seven of the 2S species. The third joint 

 of antenna' may be slightly longer than second, but never one-half 

 longer. 



