226 THE entomologist's record. 



visible. This arrangement also holds good for the mesothorax. The 

 short prothorax has one situated at either lateral extremity. On the 

 head-piece, between the bases of the antennae, are two more, and two 

 are situated on the labrum between the eyes. These last are large 

 and prominent, the dark colour of the imaginal eyes showing through. 

 Two small raised and roughly triangular pieces on either side of the 

 labriam are possibly the paraclypeal tubercles of Packard. The 

 maxillae are very broad at the base, and fill up the entire central line, 

 extending not quite to the end of the wingcases, the tips of the 

 8rd pair of legs rising from beneath them, and extending to the tips 

 of the wings. The 1st and 2nd leg-covers, fill the space between the 

 maxilla? and antennae, the first stopping just short of the tij)s of the 

 maxillae, while the 2nd with the antenna^ (which show clearly the 

 cross striations) reach almost to the tip of the wings. A slip of the 

 hindwings can be traced as far as the level of the spiracle on the 4th 

 abdominal segment ; this is very narrow at first, but rather unusually 

 it broadens out slightly on the 4th abdominal segment. 



Plate viii., fig. iii represents a larva preserved by Mr. Bacot just 

 before the first moult, intended to show the particles entangled in the 

 silken net, which have, however, unfortunately been lost in mounting 

 the specimen. It will be noticed that the forked hairs noAv appear 

 much smaller in proportion to the body of the larva (Plate viii., 

 fig. iii;/), and that some are broken, some altogether missing. 



It appears to be evident that these larvae lose their early character 

 at the first moult. But the curious spicules, or whatever they may be, 

 are still a very noticeable feature, increasing, as they do, in number 

 and in size, with the growth of the larva, and, as Mr. Bacot notes, they, 

 like the more mature special organ of Phoi-odesma smaratidaria and 

 Cowihaena piistulata, still have a share in securing the silken threads, 

 with which the larva more or less protects itself. I have made a sketch 

 of the more pronounced of these spicules (?) upon the anal flap of the 

 larva in the 2nd skin (Plate viii., fig. iyk) to show how they project 

 from, but are nevertheless embedded in, the skin. 



In the adult larva, these processes are still very numerous, more or 

 less covering the whole body, and appear to be, in some cases at least, 

 tipped with fine hairs. I have been compelled to omit these, and also 

 the lateral flange, from my drawings, for the sake of clearness. 



Mr. Bacot does not remark about the curious way in which the 

 first pair of legs in the larva its second stadium appear to be drawn up 

 into these segments, or even perhaps aborted (Plate viii., fig. ivni). 



I think that the markings upon the ova of Geometra papilionaria 

 are much finer than those of Phorode.wia smarandaria or Coniibaena 

 pusttilata. 



In attempting the tabulation of the forms of G. papilionaria in 

 the possession of collectors I have not met with much success. It 

 is so difficult to know whether they come up to one's own ideal, Avithout 

 seeing and comparing the specimens. I have succeeded, however, in 

 procuring details of 574 specimens, which may be arranged thus : — 



1. Linne's type .. .. 531 5. a,h. cuneata .. .. 12 



2. ab. jD?-((si«c(na, Hufn.. . 11 6. ah. suhobKoleta . . .. 12 



3. ab. herbacearia, Men. . . 2 7. ab. deieta . . . . 3 



4. ab. siibcaerulescens . . 3 574 



Mr. H. E. Winser was good enough to send me batch of ichneumon 



