84 THE GENUS CORYTHUCHA 



series of cells near the middle; lateral carinae widely separated from the hood, 

 raised anteriorly and with two or three distinct cells. Antennae clothed 

 with a few long hairs. Elytra with the outer margin nearly straight and 

 armed with numerous spines, the costal area with three to four rows of areoles. 

 Length male and female 3.4 mm.; width 2.2 mm. 



Color. General color whitish, marked with fuscous. Pronotum brown; 

 paranota, hood and carinae with areolae hj'aline; a few of the nervures on the 

 dorsal part of the hood and a small spot on the paranota fuscous. Elytra 

 hyaline, a band near the base, another near the tip (a rather large hyaline spot 

 near the middle), posterior portion of tumid elevation and more or less of 

 sutural area fuscous. Antennae and legs testaceous, the apices brownish- 

 Body beneath brownish and partially blackened. 



Type. — 9 , Collected near Lake Waccamaw, North Carolina, 

 June 9, 1915, by Prof. R. W. Leiby. (Collection of C. J. Drake.) 

 Paratype. — 9 , same data as type. (Collection of Department 

 of Agricultm'e of North Carolina, at Raleigh.) 



14. Corythucha obliqua Osborn and Drake 



1916. Corythucha ohliqua Osborn and Drake, Ohio Jr. Sci., .wii, no. 1, p. 11. 



Nov., 1910. 



Hood slightly higher and noticeably shorter than median carina. Height 

 of hood slightly less than one-half its own length. Lateral carinae rather long. 

 Reticulations of hood not more than twice the size of those of the paranota. 

 Costal margins of elytra straight. Spines on membranous margins rather 

 short, numerous on nervures of hood. Size, 3.45 mm. long, 1.44 mm. wide. 



Hood dark brown. Two dark brown spots on paranota. Brown bands 

 across base and near apex of elytra. Apical band appearing very narrow 

 and slanting anteriorlj- from costal margin. 



The type, from Dutch Flats, Placer County, California, and 

 six other specimens from Oregon, in the Drake collection, have 

 been examined. The species also occurs in Idaho. Food plant 

 is Ceanothus species. 



15. Corythucha celtidis Osborn and Drake 



1916. Corythucha celtidis Obsorn and Drake, Ohio Biol. Soc, ii, no. 4, p. 227. 



Pronotal hood sUghtly higher than and about equal in length to median 

 carina. Height of hood one-half its own length. Medina carina not prom- 

 inently arched. Lateral carinae short. Reticulations of hood large. 

 Spines along membranous margins of normal length and number. Costal 

 margins of elytra straight. Size, 3.6 mm. long, 1.8 mm. wide. 



Few nervures on top of hood sometimes embrowned. A small brown spot 

 on paranota, sometimes a trace of a second spot. Dark brown bands across 

 base and apex of elytra. Apical band not solid brown, very few areoles 

 entirely clouded, many partially hyaline. 



