1899.] 3 



to be able to pay this small tribute to one who has contributed to 

 such a degree towards our knowledge of the British Rhynchota, and 

 to whom I am much indebted for kindly assistance in my own studies. 



CoRiXA Saundersi, n. sp. 



Belongs to subgenus BasiJeocorixa, Kirk. {= Corixa of most authors), and to 

 the group of nigroUneata, Fieb. 



Pronotum, clavus and basal half of corium rastrate, rest of corium rather feebly 

 rastrate. 



Width of pronotum one-half greater than its length, lateral angles irregularly 

 rounded, base gently rounded. Macropterous. Intermediate tibia and claws snb- 

 equal, each about three-eighths longer than tarsus. Metaxyphus very short, 

 triangular, subequilateral. 



Pronotum and elytra brownish-black ; pronotum with 7 — 8 fairly straight, 

 rather narrow, yellow lines (occasionally splitting) ; lines at base of clavus entire, 

 somewhat dilated ; lines of corium and membrane and those towards the apex of 

 clavus, undulated and interrupted, not continuously divided by dark, regular, longi- 

 tudinal areas. Corio-membranal suture not very distinct, not margined with pale 

 yellow. Meso- and metasternum and basal thi'ee or four segments of abdomen, 

 blackish. Length, 5 mm. 



S . Frontal fovea elongate ovoid, rather narrow and shallow, oval at base, ex- 

 tending a little posteriorly beyond the apical margins of the eyes. Pala cultrate, 

 dorsum arcuate, not produced backwards, base rather broader than the apex of 

 tibia ; concave side with a slightly arcuate row of about twenty blunt, rounded 

 teeth. Strigil very large, oblong-oval, length twice as great as breadth, composed 

 of four (? five) irregular, sinuately-margined rows of striae. 



? . Pala apparently not distinguishable from that oi fossarum, 9 . 



Chobuam, Surrey {June) ; 3 (J c?> 1 ? ; E. Saunders. 



The type {^), one male and the female, are in Mr. Saunders's 

 collection, the other male he has kindly presented to me. 



G. Saundersi differs from nigroUneota in being much more feebly 

 rastrate on the corium, and by the' form of the metaxyphus ; from 

 fossarum by the longer pronotum and greater number of pronotal 

 transverse lines, and by the form of the metaxyphus. As regards the 

 males, the new species is separable from nigroUneata by the form of 

 the strigil and of the frontal fovea, and ivonx fossarum by the form of 

 the palae and of the strigil. It is, moreover, a much smaller insect 

 than the latter, one example barely reaching 5 mm., •wh\\e fossarum is 

 rarely, if ever, under 6 mm., and often attains to 6| mm. It is 

 closely allied to the Scandinavian C. ijaUiduJa, J. Sahib, (which is 

 personally unknown to me), the male of which apparently somewhat 

 resembles C. nigroUneata in the form of the frontal fovea. 



Wimbledon : Deceinher, 189S. 



