234 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



from the basal, curves inward oa the subcostal vein, and outward on the median 

 space ; the two lines beyond are approximate, but less sinuous; the fourth line from 

 the base of the wings is broad, dift'use, twice as broad on the costa as the three others ; 

 beyond this line is a clear median space, in the middle of which is the distinct discal 

 dot ; beyond are four more or less distinct lines, of which the outer (or submarginal) 

 is most distinct and regularly scalloped; a marginal row of twin black dots; fringe 

 whitish. Hind wings with traces of four scalloped lines, the marginal one the heav- 

 iest. Expanse of wings, 1.60 inches. 



16. The imported elm-leap beetle. 



Galeruca xanthomelwna Schrank. 



Order Coleoptera; Family chrysomelid^. 



'ElG. %\..— Galeruca xanthomelatna : a, eggs; b, larv»; c, adults; C, e^gs (enlarged); / scnlptiire of 

 eggs; g, larva (enlarged); h, side view of greatly enlarged segment of larva; i, dorsal view of 

 same; J, pupa (enlarged); I, portion of elytron of beetle (greatly enlarged).— After Riley. 



The following accoiiut of this pest is taken from Professor Riley's 

 pamphlet forming Bulletin 6 of the U. S. Department of Agriculture. 

 It contains a full account of the imported elm-leaf beetle, and of the 

 best means of attacking it, which will be welcome, as for several years 

 past the elms of many towns and cities in the Middle Atlantic States 

 have been ravaged by this pest. 



According to Grlover this beetle was imported from Europe as early 

 as 1837. It somewhat resembles the striped cucumber beetle {Diabrotica 

 vittata) in size and markings. The grub or larva is long, almost cylindri- 



