272 ENTOMOLOGICAL NEWS [XXXI, '20 



apex and the fourth darker brown; frontal spines yellow. Median line 

 of hood, anterior two-thirds of median carina, and antero-lateral margins 

 of paranota dark brown; reticulate portions of pronotum otherwise 

 yellowish. Costal and most of sutural areas of hemielytra with hyaline, 

 iridescent areoles, the veinlets largely yellow, a few brown; subcostal 

 area, discoidal area, and two rows of sutural areoles next to discoidal 

 area, opaque white; apical one-third of discoidal area largely occupied by a 

 depressed, triangular, dark brown spot, on each hemielytron. Legs 

 yellowish. 



Frontal spines stout, crowded, about one-half as long as the first an- 

 tennal segment; basal spines vestigial. Pronotum sparsely hairy; the 

 carinae low, uniseriate; hood about one-half longer than broad (14-10), 

 well inflated, almost as high as median carina; paranota moderately 

 reflexed, acutely angulate, at most three areoles wide, anterior margins 

 slightly concave, posterior margins convexly rounded and nearly vertical 

 above bases of hemielytra; width across paranota almost equal to entire 

 length of pronotum (48-50). Costal area of hemielytra triseriate for a 

 short distance (about equal to three aeroles) at widest part, otherwise 

 biseriate; subcostal area biseriate; discoidal area one-half as long as 

 hemielytra, about four areoles wide at most. 



Length 2.7 mm.; width 1.2 mm. 



Holotype 9 , Biscayne Bay, Florida (A. T. Slosson) in Mrs. 

 Slosson's collection. 



This species is especially distinguished by the hemielytral 

 markings; it runs in Gibson's key^ to iridescens Champion, 

 from which it differs in the structure of the head spines, 

 width of pronotum, and most other details, in addition to 

 ■coloration. This is the first species of the genus to be re- 

 corded from Florida. I am indebted to my friend Gibson's 

 kindness for the opportunity of examining certain related 

 species not represented in my own collection. 



Corythucha cyrta Parshley.'' 



Having had occasion recently to determine a good many 

 •specimens belonging to the genus Corythucha, I am more than 

 •ever impressed with the difficulties involved in the study of 

 the group. Gibson's review is a most creditable pioneer 

 work, but there are certain aspects of the subject which re- 



^The genus Gargaphia, Trans. Am. Ent. Soc, XLV:i87-20i, 1919. 

 ^In Gibson, The Genus Corythucha Stal, Trans. Am. Ent. Soc, XLIV: 

 ■86, 1918. 



