1874.1 239 



antcmiffi, from in a line with the base of the antenna?, a blaek 7"sliipcd 

 character, margins very narrowly black ; cheeks, at the apes, broadly black. 

 AnteiincB yellow ; setre brown. 



Thorax : pronotum finely crenulate, with a broad, black, transverse streak at the 

 anterior margin, extending almost from the anterior angle to in a line with the 

 inner margin of the eye ; below the streak, a transversely placed black spot, 

 generally joined to the first named. Scutellum with a black triangular spot at 

 each basal angle. Elytra scarcely coverhig half the abdoiiien, testaceous-white, 

 finely punctured along the margins of the nerves, which do not enclose areas. 

 Claims not distinct from the corium, dark brown or blackish, inner nerve and 

 apical half of the central nerve white, or testaceous-white ; suture white. 

 Corium — margin entirely white or testaceous-white ; within the anterior mar- 

 ginal nerve a fine dark brown or blackish streak extends from the base almost 

 to the apex ; next the claval suture a large, black, clavate patch, the large end 

 towards the apex. Sternum testaceous-white, sides broadly black. Leffs testa- 

 ceous-white ; thighs — 1st and 2nd pairs near the apex, on the upper-side, with 

 a short fuscous or blackish longitudinal streak ; 3rd, under-side, with a black 

 longitudinal streak, extending throughout nearly their whole length. Tibice — 

 1st and 2nd pairs exteriorly, at the base, brownish or fuscous ; 3rd, along the 

 inner margin, more or less fuscous or blackish ; spines pale clear brown, l^arsi 

 testaceous-white, apex of the 3rd joint narrowly and claws black. 



Abdomen above, yellowish or testaceous-white ; segments posteriorly, and a longitu- 

 dinal line near the margin, black ; beneath yellowish or testaceous-white, edges 

 of the segments, next the outer margin posteriorly, blaek ; external processes 

 short, yellowish. Length, 1 line. 



The macropterous form is unknown to me. 



The description has been made from specimens taken by my 

 friend, Mr. T. Wilkinson, of Scarborough, and has not previously 

 been recorded as British. He found them towards the end of June 

 on the North cliff amongst newly cut grass. 



IDIOCERUS (see page 25). 

 Species 2a. — Idiocerus yenustus, sjy. n. 



? . Head yellow. Croicn with a black lunate streak on each 

 side of the centre. Antemice — apical plate elongate-oval, black, basal 

 third white. Fronotum black, with a broad, yellowish-white, central 

 line. Scutellum yellow ; basal margin, in the middle, with a narrow, 

 triangular, black spot ; basal angles with a large, triangular, black 

 spot, to the apex of which is hooked on a small round spot of the 

 same colour ; from the transverse channel, towards the apex, on each 

 side of the centre, is a short black streak. Elytra clear, transparent, 

 shining ; nerves stout, black, frequently interrupted at irregular inter- 

 vals with short, yellow or yellowish-white, oblong spots or streaks. 



Sead yellow. Crown with a black lunate streak on each side of the centre, and a 

 small round spot of the same colour just below its outer extremity ; on tlie 



