1875.] 93 



between the suture and the first nerve brownisli, darkest next the nerve. Corium : 

 between the anterior margin and the first nerve almost white, the latter mar- 

 gined with brown, widening and becoming darker as it approaches the transverse 

 nerves, from thence to the apex black ; nerve adjoining the claval suture mar- 

 gined with brown, becoming darker as it approches and extends to the latter 

 from thence to the apex black, where it is iinited to that down the anterior 

 margin. Wings pale, nerves black narrowly margined with pale fuscous. 

 Sternum : sides of the segments black margined with vellow. Zerjs pale fuscous- 

 testaceous. Thighs with a longitudinal black streak dowii the inside. 



Abdomen black ; dorsal line and side margins narrowly yellow ; last genital segment 

 black, posterior margin almost perpendicular, near the upper margin on the side 

 a somewhat triangular yellow patch ; opening viewed from behind almost circular ; 

 styles long, aculeate, diverging as they ascend, and almost touching the margin in 

 a line with the tube. 

 ? . Unknown. Length 2^ lines, nearly. 



In stature between Del^haxpulchella, Curt., and Lihtiniia sjjeciosa, 

 Boh., to both of which it may be said to bear a rough resemblance. 

 From the former the difference in the shape of the antennae will show 

 that they do not belong to the same genus, and from the latter the 

 broader head, absence of keels, and difference in length of the joints, 

 of the antennje, are sufficiently distinguishing characters. 



I took a single <^ example at Fawley, by sweeping, in June of the 

 present year. 



Lee : Jidg, 1875. 



ON CERTAIN BRITISH EEMIPTERA-HOMOPTERA. 

 BY JOHX SCOTT. 



\_Revision of the genus AlHTSANrs, and descriptions of species.'] 



The insects comprised in this genus form, in part, the second sub- 

 generic division out of four into which Eurmcister, in his " Genera 

 Inrtcctorum," vol. i, separated the species representing the genus 

 Iiissus, Germar. For his type he took the Cicada argentata, Fab. (a 

 species not known to be found in Britain), and all subsequent authors 

 have adopted his type, and raised the group to its present from its 

 somewhat lower state. The drawings in Burmeister s Gen. Ins. are 

 probably unequalled for correct outline and for details of the various 

 parts of the creatures. Since this is so, it seems to me very remarka- 

 ble that out of the nine species he emimerates four of these relate to 

 the genus Acocephalus, Germ., which had been previously figured in 



