TRIBE III. — PHYSATOCHEILINI. 



491 



carinae usually lower than margins of pronotum, the backward 

 extension triangular ; elytra closely reticulated, the main veins 

 elevated, carina - like ; dimorphic in 

 length, in macropterous form widely 

 overlapping with tips broadly rounded, 

 in brachypterous one, slightly overlap- 

 ping with tips acute, divaricate ; discoi- 

 dal area surpassing middle ; costal area 

 usually with but one row of cells, sub- 

 costal with two rows. Three species are 

 known from North America, all occur- 

 ring in our territory. 



KEY TO EASTERN SPECIES OF MELANORHOPALA. 



a. Costal area evenly reticulated and with 

 one row of cells ; antennae more or less 

 clavate. 

 b. Paranota vertical, their row of cells lat- 

 eral; apex of hind portion of prono- 

 notum acute. 462. clavata. 



bb. Paranota reflexed against the disk of 

 pronotum, their row of cells dorsal; 

 apex of hind portion of pronotum ob- 

 tuse. 463. REFLEXA. 

 aa. Costal area irregularly reticulated, with 

 two or three rows of cells ; color more 

 or less variegated with fuscous; an- 

 tennae not clavate. 464. infuscata. 



Fig. 116. Male of 

 M. clavata Stal. =(Zm- 

 rida Stal), X 10. (Aft- 

 er Drake, Ann. Carne- 

 gie Mus.). 



462 (667). MELANORHOPALA CLAVATA Stal, 1873, 130. 



Elongate-subparallel, macropterous form; elongate-oval, brachyp- 

 terous one. Dull brownish-yellow or grayish-brown; tarsi, fourth an- 

 tennal, swollen tip of third, and often some of the elytral veins blackish- 

 fuscous or dark brown. Disk of pronotum of macropterous form with 

 median third strongly convex, nearly twice the width of front margin, 

 of brachypterous form flat throughout, its width across humeral angles 

 but little greater than that of apex. Male with body narrower and 

 third antennal but little enlarged at tip; female much broader with tip 

 of antennae distinctly enlarged. Elytra in brachypterous form oval, 

 their sides curved, the divaricate tips surpassing abdomen. Length, 

 5—6 mm. (Figs. 116 and 117 and PI. IV, fig. 3). 



Marion Co., Ind., June 3 — Aug. 14 ; taken by sweeping herb- 

 age in dense woodland and low meadows and by beating foli- 

 age of black oak. Hewitt and Westfield, N. J., and Staten 

 Island, N. Y., June — August (Davis). Argos and Willow 



