1160 



FAMILY Ltd. — CHRYSO Mltf JDM. 



Southern half of State; frequent, 

 on various species of dock (Bum ex) . 



April 18-June 15. Occurs 



XL. Lina Meg. 1823. (Gr., "flax.") 

 Oblong, feebly convex species, having the sides of thorax thick- 



ened and the elytra usually spotted or striped, 

 known from the State and another may occur. 



Three species are 



KEY TO INDIANA SPECIES OF LINA. 



a. Thorax with sides yellow and disk dark metallic green. 



h. Elytra reddish-yellow with rounded black spots, which are sometimes 

 merged into transverse bands. 2151. interrupta. 



bl). Elytra dull reddish or greenish-yellow, with elongate black spots. 



2152. SCRIPTA. 



aa. Thorax green or yellow, the sides not paler. 



c. Elytra dull yellow without spots ; thorax green. teemuee. 

 cc. Elytra purplish-black, narrowly margined with yellow. 



2153. OBSOLETA. 



2151 (- 



) 



Lina interrupta Fab., Syst. Eleut., I, 1801, 438. 



Oblong-oval. Black ; thorax with a 

 yellow margin enclosing a small black dot ; 

 elytra dull yellow with usually six spots 

 on each, more or less confluent ; base of 

 antenna 1 and tibiae reddish. Thorax with 

 the black center very finely, the thickened 

 yellow sides coarsely, punctate. Elytra 

 with numerous rather coarse, scattered 

 punctures. Length 6.5-8.5 mm. (Fig. 501.) 



Throughout the State ; common on 

 willow, cottonwood, etc. April 2- 

 August 11. The dull yellow of elytra 

 is red in life. The spots of elytra 

 vary much in shape and are some- 

 times absent, except the two median 

 ones on each. Known as lapponica 

 Linn, in most collections, but the lat- 



Fi 3 . 504. X 6. (After Forbes.) 



ter is a European species with thorax wholly metallic. 



2152 (6839). Lina scripta Fabr., Syst. Eleut., I, 1801, 438. 



More elongate and parallel 

 than the preceding. Thorax and 

 under parts usually similar in 

 color to those of interrupta, but 

 the former sometimes reddish 

 with four small black spots in a 

 curved line at center. Elytra with 

 the suture and seven elongate 



a, beetle, normal form; b, c, d, e, variations of 

 elytra. (After Riley.) 



