140 THE ( ANADIAN KNTUM ULOU16T. 



viz.: Kentucky Blue Grass ( Poa prataisis LJ, the venter being paler than 

 the dorsum. Bristles on body black and very short. Anal and 2nd 

 segments paler than rest of the body. .Segments transversely wrinkled as 

 before, but not so conspicuously. The medio dorsal line and the six 

 lateral stripes are the same as in the end of last stage, all white. There 

 are in all seven stripes on either side of the medio-dorsal line, including the 

 stigmatal stripe. The space between the medio dorsal line and the tirst 

 stripe on either side is wider than the space between the other stripes, and 

 unless examined with a lens this space appears as a wide dorsal band, on 

 account of the mcdio-dorsal line being inconspicuous, and the white of the 

 stripes on sides giving a whitish appearance to Oie whole larva. Stigmatal 

 band very wide, with a yellowish tinge. Thoracic feet semi-translucent ; 

 prolegs concolorous with venter. 



The second moult was passed on .\ugust 2nd. 



StiXi^e III. — Length, 55 mm. The larva in this stage is much the 

 same as it was in Stage II. Head a little paler green than body ; ocelli 

 small, black, on a whitish prominence ; mouth-parts yellowish ; whole 

 surface of head has a roughened appearance and bears minute short b'ack 

 bristles ; around the mouth-parts are some slender pale hairs. The stripes 

 on the body on either side of the medio-dor.sal line are not so regular in 

 width as in last stage. The ist and 2nd from medio-dorsal line are much 

 wider than the 3rd, 4th and 5th, (the 2nd being wider than the ist,) and 

 appear as bands. The 6th and 7th arc wide, of about tipial width, but the 

 6th is rather inconspicuous, the 7 th, the most conspicuous of all, being of a 

 bright whitish colour. The others are more or less tinged with yellow. 

 The sixth stripe is the stigmatal stripe. Spiracles small, yellowish, ringed 

 with brown and situated in the centre of the 6th, or stigmatal stripe. On 

 segment 1 2 the .'Spiracle is in the centre of the sih stripe ; on segment 2 on 

 lower edge of the 6th, or stigmatal stripe. The whole body bears short 

 black bristles, as on head. AH the feet cor colorous with venter ; lower 

 half of thoracic feet semi-translucent. 



On August 14th the larva moulted for the third time. 



Sta^^t IV. — Length, 7 www. The larva in this stage is about the same 

 as it was in the two previous stages. Head, i mm. wide, rounded, uni- 

 formly punctate, slightly larger than segment 2, and paler green than 

 skin of body ; short bristles as before. The body is sh.iped as before, the 

 medio-dorsal line and the markings on either side are the same as in last 

 stage, the 2nd strij)e being much wider than the ist, 3rd, 4th and 5th, and 



