220 [March, 



and is margined below with a fine line of yellow, with another more 

 interrupted beneath it ; from thence the ground colours of the side 

 are dark reddish-grey, paler yellowish-grey next on the spiracular 

 region, and darker brownish-grey below, including the semi-transparent 

 ventral and anal legs with their brown hooks ; the spiracular region 

 is edged above and below at the segmental divisions with pale yellow ; 

 all the lateral tubercles are longitudinally oval and dark brownish-grey, 

 each of these uppermost ones placed on a blackish crescentic blotch 

 delicately edged with pale yellow ; the belly dark greenish-grey, with 

 a yellowish interrupted stripe on each side close to the legs ; the hairs 

 which hide the spiracles are chiefly grey, or slightly mixed with a few 

 black ones on the sides, but those proceeding from the few dorsal 

 black tubercles are blackish, and all are glossy. In one larva the 

 lowest hairs along the sides were whity-brown, the next row above 

 grey, and the upper rows darker grey mixed with black. 



The pupal change, in one instance, occurred on the fourth day 

 after the commencement of the cocoon, which was spun against the 

 side of its cage, and in junction with the leno cover of it, and was 

 formed of a large gossamer web of a roundish figure, about two by 

 one and a half inches, of a darkish grey colour, and having the larval 

 hairs interwoven ; inside this outer web was a hammock of a finer 

 textured silk, held in suspension by fine threads at intervals in con- 

 nection with the outer fabric. The pupa within the hammock lay 

 belly upwards, and was eight lines in length, two and a half lines 

 broad, almost uniform in size throughout, the head rounded, and 07ily 

 the last two segments tapered to the blunt and rounded tip, the surface 

 smooth, quite black and highly polished ; the old larval skin lying 

 detached behind it. 



Emsworth : February ^th, 1874. 



DESCRIPTIONS OF TWO SPECIES OF TENTHREDINID^E, NEW 

 TO SCIENCE, FROM SCOTLAND. 



BY P. CAMERON, JUN. 



Taxonus glottianus, sp. n. 



T. niqe.r, siih-nitidus, gemihus tibiisque anticis sordidc fesfacr/s ; alls 



suh-fitmatis, stigmate nirjricante. $ . Long. 3, alar. exp. G lin. 



Anteniife black, about as long as the head and thorax ; head black, covered with 

 short pubescence ; thorax and abdomen black, almost shining, the abdomen with a 

 triangular white spot at the base (as in Cimbex variabilisj ; feet black — all the knees, 

 anterior tibiffi and the tarsi at the base, sordid testaceous ; wings almost smoky ; 

 costa and stigma blackish, the latter pale testaceous at the base. In the lower part 

 of the second sub-marginal cell is a minute black dot. 



