94 THE GENUS CORYTHUCHA 



Apical band slightly more than one-fourth wider than length of elytra. Two 

 or three partially hyaline areoles in apical band. Apical areoles hyaline, 

 differing in this respect from the preceding species. 



Type.— 9 , Tiffin, Ohio. (Col. by C. J. Drake.) (Collection 

 of United States National Museum.) Allotype. — d^ , same data 

 as type. Paratypes. — Nine females, same data as type. 



The above mentioned specimens were captured on Crataegus 

 species. 



35 Corythucha lactea Drake, new species 



Hood very highly elevated, veiy abruptly constricted at the middle, the 

 length a little greater than the height. Sides of hood, dorsal surface of the 

 paranota and elytra, outer margins of paranota and elytra, except distal third, 

 armed with rather stout spines. Paranota not very large, reniform. Pro- 

 notum with the posterior process small, areolate; median carina highly elevated, 

 a little more than one-third of the height of the hood; lateral carinae widely 

 separated from the hood, strongly raised anteriorly, with two or thi-ee distinct 

 areoles. Elytra rather strongly concave on the outer margin, the costal 

 area triseriate. Claspers strongly curved in the male. Length, male 3.15 

 mm., female 3.85 mm.; width, male 2 mm., female 2.4 mm. 



General color lacteous. Hood, pronotum, paranota, carinae and elytra 

 lacteous, a few veinlets sometimes very faintly margined with light brown, 

 and when so the color markings resemble those of morrilli Osborn and Drake. 

 Legs and antennae testaceous. Body beneath brownish, sometimes slightly 

 darkened. Eyes black. 



Type. — 9 , Stansbury Island, Great Salt Lake, Utah. (Col- 

 lection of C. J. Drake.) Paratypes. From same locality in col- 

 lections of Prof. Larson and California Academy of Sciences. 



36. Corythucha marmorata Uhler 



1878. Corythucha mamorala Uhler, Proc. Bost. Soc. Nat. Hist., xix, p. 415. 



Pronotal hood considerably higher than median carina but not twice as high. 

 Height of hood about two-thirds its length and equal to the length of the 

 median carina. Hood not flattened on top or posteriorly and not prominently 

 constricted at the middle. Length of globose portion greater than its width. 

 Reticulations of hood slightly larger than those of paranota. Median carina 

 arched. Lateral carinae very small, low, short, terminating a considerable 

 distance from base of hood, and without areoles. Costal borders of elytra 

 straight. Width of elytra at apex very nearly equals the width at anterior line 

 of elytra. Spines on membranous margins and on nervures short. Length 3.2 

 mm., width 1.8 mm. 



Antennae and legs yellowish, hood and paranota lacteous; the nervures more 

 or less embrowned with usually a brown spot in center. Elytra lacteous, with 

 the centers of areoles hyaline, with fom- irregular, transverse, smoky brown 

 bands. 



