DELTOCEPHALUS STRIATUS. 51 



Genus XXXVIII.— DELTOCEPHALUS, Burm. 



Body elongated. Head and eyes together wider 

 than the pronotum. Vertex deltoid — that is, more or 

 less obtusely triangular. Ocelli rather distant from the 

 eyes. Pronotum emarginate at the base. Elytra usually 

 with five apical cells (ante-apical of Sahlberg), and 

 they may be furnished either with or without a 

 limbus. Wings often short, with the second longi- 

 tudinal nervure normally forking, or else joining, 

 with the first at a short distance from the apex. The 

 second longitudinal nervure joining with the third, by a 

 fork which is carried afterwards to the marginal vein, 

 at a greater distance back. Outer edge of the anterior 

 tibia finely ciliated. Legs moderate in length, with the 

 posterior tibiao fringed outwardly vv^ith fine setae. 



Some forms are dimorphous. 



Dr. Sahlberg describes thirty-eight species. 



DELTOCEPHALUS STRIATUS, Linn. Plate XLVIIL, 

 figs. 2 to 2 e. 



Cicada striata, Linn. ; Schr. ; Fab. ; Eall. ; Zett. 

 Jassus striatus, H.-Schff. ; Thoms. 



,, strigatus, Germ. 

 Deltocephalus striatus, Flor; Marsh.; Kirschb.; Fieb. ; 



Sahib. ; Scott ; Edw. pt. ii. p. 50. 



Head pale ochreous, with obscure reddish mottlings. 

 Vertical margins form nearly a right angle. Eyes pale 

 brown. Pronotum with the basal margin straight and 

 the fore margin nearly semicircular. Colour yellowish, 

 with reddish blotches, and with three pale greyish 

 stripes. Scutellum with a fine horizontal streak and 

 three reddish dots. Frons brown, with a linear middle 

 stripe. Abdomen fusiform, dark brown, with pale 

 yellow segmental margins. Pygofer of male with a 



E 2 



