58 BRITISH CICADA. 



through the courtesy of Dr. P. Mason I am enabled to 

 draw specimens from his cabinet which originally 

 were in Mr. Scott's collection, and were named by 

 Sahlberg. These insects are more robust in form than 

 D. distinguendus, and the elytra of the female are less 

 mottled in colour, and considerably shorter as measured 

 by the abdomen. The vertex also shows two spots 

 which probably indicate the position of ocelli. Dr. 

 Mason possesses only three foreign somewhat dis- 

 similar specimens, which I here shortly describe : — 



No. 1. — Honey-yellow, squat in form, shining, and 

 almost spotless. Elytra! nervures whitish. Abdomen 

 rather darker than the rest of the body, with its apex 

 recurved. The pygofer has an oval-shaped chamber 

 at the extremity. 



No. 2. — Body rather darker, with the abdominal 

 apex deeply cleft, and showing a projecting style on 

 each side of the cauda. The dorsal part of the abdo- 

 men darkest. The pronotum shows seven or more 

 dots on its disc. 



No. 3. — Very similar in colour, with dark tibia and 

 tarsi. The caudal process large within the oval 

 chamber. I have not been able further to examine the 

 genitalia of these specimens. 



There seems to be considerable doubt as to the pro- 

 priety of admitting D. Falleni to be a true species. 



Size, 0-14 inch, or 3-50 millimetres. 



Deltocephalus sabulicola. Curt. Plate L., 

 tigs. 3, 3 a. 



xipterodes sabulicola, Curt., Brit. Ent. pi. 633. 

 Deltocephalus avenicola, Sahib. 



,, sabulicola, Marsh. ; Fieb., S. E. D. fig. 



29 ; Scott ; Edw. pt. ii, p. 53, 



Crown shorter than its width. Colour pale rusty 

 ochreous, with or without faint brown or reddish 



