036 MR HARDY ON INSECT* 



tudiDal, slightly bent oval, sometimes all foruxug a nearly continuous 

 band; two minute lighter coloured, tubercular spots (stigmata ?) placed 

 obliquely on the lower part of the sides of each segment, from the 3d to 

 the r2th; all the spots fovealaied, and bearing a black bristle; 13th 

 or anal segment, small, slightly dusky above. Anal styles, very distinct, 

 whitish, with narrow dusky joints ; 3-jointed ; 1st stout, sub-cylindric, its 

 tip rounded, with two or three long bristles; 2d less than half the 

 breadth of the 1st, elongate, narrowest at the base, sub-cylindric, with 

 a long bristle at its apex ; 3d slender, one half the breadth of the second, 

 very long, slightly bent, apex blunt, a bristle near its base, and another 

 very long one at the tip. Underside pale whitish green, darkest about the 

 breast, belly with faint shining spots. Legs six, corneous, shining, dirty 

 castaneous white, with the tips darker, moderate; femora scarcely 

 incrassated at the apex ; tibife slightly bent, simple; tarsus, or claw, with 

 a minute spine at its base. Length 3i— 4 lines. 



It has a gliding, slow motion. It is the larva of a Staphylinideous insect, 

 perhaps of a Pkilonthus ; but diifers considerably from the description 

 of Ph. cr/jeu3, quoted by JErichson {Genera et Species Staphylinorum, p. 428) 

 from Bouche, Hist. Nat. Ins. i., 179, 1. The parts of the mouth being de- 

 scribed from specimens preserved in Canada balsam, 1 have not been 

 able, in every case, to see their origin distinctly. 1 kept some specimens 

 for about two months, by supplying them with the stalks of turnip leaves, 

 into which they burrowed ; so that there can be no doubt of their being 

 vegetabla feeders. 



NOTE D. 



DESCRIPTION OF THE CATERPILLAR OF A SMALL MOTH THAT LIVES ON THB 

 TURNIP LEAF. 



Fusiform, or sub-elliptical, being narrowed at both ends, but most so 

 behind, of a green a little paler than the turnip leaf, with three dusky 

 lines down the back, the posterior and lateral edges of the segments of a 

 yellowish green ; head smaller than the next segment, corneous, castaneous 

 brown, with small fuscous spots ; a few blackish specks about the mouth j 

 on the crown a deep channel, which is bifurcate in front, enclosing a 

 triangular space ; second segment (prothorax) with two square shaped 

 patterns of minute black points on the back, with two spots on each side 

 of them, and two again on the lateral margins ; on the other segments a 

 longitudinal row of black spots in pairs runs along each side of the dorsal 

 line ; those on the third segment (mesothorax) closely approximate, and 

 are transverse, and only slightly oblique ; those on the succeeding 

 segments are situated apart, obliquely, the two hindmost having a wider 

 interval than the two anterior ; on the penultimate and ante-penultimate 

 segments, however, the first is placed in a line with the second, so as to 

 form a parallelogram or square; terminal segment with an irregular 

 line of minute spots, above a central blotch ; a longitudinal line of 

 similar spots, one on each segment, on the middle of the sides ; and, tinally, 

 one of two, in pairs placed obliquely, along above the lateral margins ; all 

 the spots furnished with black bristles ; legs dirty green, the joints and 

 tips of the tibiae blackish ; prolegs longish, green, retractile ; underside 

 nearly uniform green, palest posteriorly, the two sei^ments between the 

 legs and prolegs, and the last, with some minute black points. Length, 3 

 lines. Eats holes in the turnip leaf, lying under a slight web of a few 

 threads; walks backward equally well as forwards; suspends itself by a 

 thread when alarmed ; is irritable, and in danger prompt in getting out 

 of the way. 



When about to change into a chrysalis, it invests itself in a loose, gauze- 

 like, white coccoon, attached to the under surface of a leaf, through which 

 the pupa case is distinctly visible. This is of a pale green, with blackish 

 longitudinal stripcF, There appear to be several broods in a season. 



1 he moth, Mr Logan of Duddingston tells mc, is Cerotdoma Xyloftdln, 



