744 FAMILY XXXVII. — elatebtm:. 



1405 (4301). Glyphonyx quietus Say., Trans. Amer. Phil. Soc. VI, 1836, 

 1S4; ibid. II, 622. 



Elongate, slender, convex. Blackish-brown or piceous. rather densely 

 clothed with short yellowish hairs ; antennae reddish-brown : legs pale yel- 

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

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

 Length 4.5-5 mm. 



Southern half of State. Marshall County only in the north: 

 frequent, March 25- June 10. Beaten from vegetation. 



XXXIII. Melanott/s Esch. 1829. (Gr., "black + 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 ; antennae 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 lobed beneath, the claws with distinct, comb-like teeth. The 

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

 bristling hairs. 



The larva? of three or four of the species are among the most 

 destructive of the wireworms. The adults usually occur beneath 

 bark or on the foliage of trees, to which their pectinate claws en- 

 able them to readily cling. They are so similar in form and hue 

 that they are very difficult to separate. There is no special litera- 

 ture on the genus, the descriptions being widely scattered and many 

 of them doubtless synonymous, and the 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 Meisheimer collections at Cambridge. Of the 15 species listed 

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

 others are herewith described for the first time. For convenienc 

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

 species. 



KEY TO GROUPS OF INDIANA SPECIES OF MELANOTICS. 



a. Third joint of antenna- but little if any longer than second, the two 

 together almost always shorter than fourth. Group A. 



aa. Third joint of antenme at least one-half longer than second, the two 

 together equal to or longer than fourth. Group B. 



Group A. 



This group comprises seven of the 28 species. The third joint 

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

 longer. 



e 



