isra] 239 



of tlie abdomen, rounded posteriorly ; nerves not prominent nor granulated. 

 Sternum yellowish. I/effs pale yellowisli-wliite ; tarsi — 1st and 2nd pairs, with 

 the apex of the 3rd joint, narrowly black. 

 Abdomen above brownish-yellow, with a narrow, pale dorsal line ; 3rd, 4th, and 5th 

 segments on each cide with three dark spots, the intermediate spaces pale as in the 

 dorsal line, 6th with a dark spot in a line with the middle row of the foregoing ; 

 genital segment yellow, black from the middle to the apex ; appendix black at 

 the base, apex yellow, styloid processes pitchy-black, somewhat T sliaped. 



Undeveloped form, 5 . 



Similar to the $ in all respects, except the following, viz. : — keels of the face 

 broadly black ; apex of the inner margin of the elytra with an indication of a fuscous 

 streak. Abdomen slightly pale fuscous towards the base, middle row of spots on the 

 sides large and black. Length, f — | line. 



Developed form unknown to me. 



Nearly related to L. elegaoitula, but it has not a black scutellum, 

 nor a black patcb, almost concealed by the eyes, on tbe pronotum, 

 as in that species. Viewed from the side, the similarity in appearance 

 of such portions of the genitalia of these two species as are visible is 

 remarkable, but their styloid processes are entirely different in form. 



I possess a ^ and $ taken by myself on Dartford Heath, in 

 August, 1867. 



Species 11a. — Libtjenia coNSANGUiisrEA, n. sp. 

 Undeveloped form, ^ . 



Keels of the head and face white, the latter narrowly margined 

 with black ; pronotum and scutellum pale luteous or yellowish- white. 

 AMovien black. 



Head longer than broad, pale luteous or yellowish ; crown — the two basal fovese 

 deep and distinct, keels white, channels black as far as the apex of the triangle 

 formed by the two middle keels. Face luteous or yellowish, keels white, nar- 

 rowly margined with black ; adjoining the side keels are (apparently) two pale 

 pustules, the upper one almost in a Ime with the lower margin of the eye. 

 AntenncB yellow. Uyes dark brown or piceous. 



Thorax : pronotum pale luteous or yellowish. Scutellum pale luteous or vcllowish, 

 darker between the keels, which have a greyish appearance. Hlgtra grey, 

 almost transparent, scarcely covering half the abdomen, rounded posteriorly ; 

 nerves distinct, not granulated. Sternum yellow ; metasternum with a large, 

 somewhat oval, black spot on the sides. Legs pale yellow or yellowish-white ; 

 tarsi — apex of the 3rd joint of the 1st ^nd 2nd pairs narrowly black. 



Abdomen black, with a very narrow, orange-yellow, dorsal line, and a marginal spot 

 of the same colour at the posterior angle of each segment ; genital segment 

 black ; styloid processes pitchy-black. Length, 1 line. 



$ unknown to me. 



