CABBAGE -GARDEN PfiBBLE MOTH. 



three-quarters of au inch in length ; the general shape cylindrical, 

 gradually lessening to the tail extremity ; feet 16, that is, 3 pairs of 

 claw feet, 4 pairs of sucker feet beneath the body, and another pair 

 (much extended) beneath the tail segment. The head greyish; under 

 a magnifier, of a pale greenish tint with many pale grey markings ; 

 and the next segment slightly horny and greyish above. General 

 colour greenish, brightest below ; above greyer, with a central stripe, 

 and stripe along each side darkest, the tints between these stripes 

 yellowish, and along each side, beneath the dark stripe, a whitish 

 longitudinal line ; the upper part much freckled with minute white 

 markings, and the segments with faint white lines between ; spiracles 

 black. 



The following observations of the habits of this " Cabbage and 

 Horse Eadish Moth " were sent me, on the 28tli of September, from 

 Huddersfield, by Mr. S. L. Mosley, F.E.S.:— " One of our regular 

 pests in garden Cniciferm and Horse Radish is the ' Garden Pebble 

 Moth,' Pivnea forjicalis. This year I have let it have its own way on 

 a small bed of Turnips in my garden, and I thought you might like to 

 see the results, which I send." .... " Garden Turnips and Horse 

 Radish are often riddled in this way. I know of several gardens just 

 as bad at the present moment." A few days later Mr. Mosley wrote 

 further : — " I have watched P. forjicalis a good deal." .... "I 

 believe it is generally common, for I have found the larvaB at work 

 wherever I have looked for them (under favourable circumstances of 

 course), and I remember seeing both Cabbage, Turnip, and Horse 

 Radish badly eaten at Isleworth." . . . . " Attacks are very usual 

 here, and I could send you leaves like those I sent any season. I find 

 the moths, in ordinary seasons, first appear about the third week in 

 May, and the larvae are feeding during the latter half of June and July ; 

 and a second brood of moths come out towards the middle of August, 

 the second brood of larvae feeding through September and into October ; 

 but in some seasons {i. e., warm ones) there seems to be a succession 

 of broods, for I have taken what appeared to be fresh imagos and larvae 

 at the same time." 



Mr. Mosley mentioned that he had not seen the pupa in its natural 

 condition, in fact he had not searched for it ; but in confinement this 

 was formed in a slight cocoon spun on the surface of the soil amongst 

 dead leaves. 



Dr. Taschenberg* mentions that when the caterpillars have reached 

 their full growth they go a little below the surface and spin a somewhat 

 cylindrical cocoon, in which they turn to a very shiny brownish orange- 

 yellow chrysalis (of which a full description is given). In this condition 

 they lie during July ; the second brood of moths appearing in August, 



* See 'Piaktische Insekten Kunde,' pt. iii. p. '240. 



