482 



FAMILY XV. — TINGIDIDjE. 



448 (637%). Drakella ovata (Osborn & Drake), 1916, 223. 



Bi-oadly oval. Pronotum dull yellow tinged 

 with brownish. Elytra brownish, with a yel- 

 lowish tinge, membrane of cells whitish-hyaline; 

 antennae and legs brownish-yellow; under sur- 

 face dark brown. Antennae less than half the 

 length of body, joint 1 nearly twice as long as 

 2 ; 3 more than twice as long as the others 

 united; 4 hairy, longer than 1 and 2 united, 

 teubcostal area with five rows of cells; discoidal 

 area with five or six rows. Other characters 

 as above given. Length, 2 mm. (Fig. 112). 



Described from a single brachypterous 

 female taken by Chas. Dury at Cincinnati, 

 Ohio. Known only from that State. 



Fig. 112, X 20. 

 (After Osborn & Drake) 



Tribe III. PHYSATOCHEILINI tribus novum. 



This tribe comprises small elongate-oval species without 

 pronotal hood and rarely with membranous paranota. The 

 costal margins of elytra are usually but little expanded ; the 

 reticulation usually very fine with all the areolae or cells small 

 and rarely in part hyaline. The osteolar openings are distinct. 

 The tribe comprises ten of our eastern genera. 



KEY TO EASTERN GENERA OF TRIBE PHYSATOCHEILINI. 



a. Pronotum with three distinct carina?, the median one sometimes 

 elevated in front. 

 b. Paranota very wide, reflexed against or above the dorsal surface 

 of pronotum. 



c. Reflexed expansions of paranota lying flat against the dorsal sur- 



face of pronotum, and in front reaching the lateral carinas ; 

 costal area of elytra flattened and with two or three rows of 

 cells. I. Physatocheila, p. 483. 



cc. Reflexed expansions of paranota forming a large bulb on each 

 side, these covering the greater part of pronotum and closed 

 within by the elevated lateral carina?; costal area of elytra nar- 

 row with a single row of long subhyaline cells. 



II. Dichocysta, p. 485. 

 bb. Paranota not widely reflexed to cover the greater part of prono- 

 tum. 



d. Elytra strongly convex, their surface shining; antennae very 



stout, the third joint subclavate, densely clothed with short 

 decumbent setae and thickened toward apex. 



III. Alveotingis, p. 486. 

 dd. Elytra not or but slightly convex, surface dull; antennae much 

 more slender. 

 e. Beak reaching to or beyond middle coxae; head usually with 

 three to five distinct spines; paranota without thin membra- 

 nous margins. 



