1904. 1 107 



The front view again shows the sides nearly parallel, being in 

 outline of course the same as the dorsal view. The anterior portion 

 (0"9 inui.) is occupied by the face down to the end of the labrutn ; 

 then comes another portion about ()"4 mm. long with rounded margins, 

 that makes the face with this portion above nearly a circle. The 

 curving of the lower margin of this piece, and of the antenufe, give 

 this effect, but none of the lines are continuous and no definite circle 

 is really outlined. After a very narrow space continuous with the 

 first leg is a diamond-shaped piece, that in a Lepidopteron one would 

 call proboscis. Outside these pieces is the first leg, which continues 

 beyond them, touching its fellow in the middle line from a position 

 1"65 to one S^S mm. from anterior end. At its extremity the other 

 two pairs of legs are ranged beside it, and they terminate (and are 

 soldered to) on the front of the Gth abdominal segment a little in 

 front of its posterior margin. Upwards the second leg appears from 

 below the end of the antennae at 1'20 mm. (from front), and the 

 third from beneath the wing at 250. 



The antennae arise quite in front and sweep round, the two 

 forming together the greater part of a circle ; they form the margin 

 of the actual flat face of the pupa, but portions of the mesothorai 

 extend beyond them, as well as the pyramid carrying the first spiracle. 

 The wing margin slightly overlaps the antennae, not the antennae 

 the wing. 



The nature of all the parts marked out on the front of the pupa 

 is not very clear to me, and resemblances to Lepidoptera are probably 

 misleading. The two central lappets under the face are probably 

 clypeus and labrum. The upcurving pieces that proceed from near 

 the end of these and disappear forward beneath the antennae, can 

 hardly be maxillary palpi, though they are where these organs are 

 in Lepidopterous pupae. Below the labrum (?) begins a median suture, 

 on either side of this are two incomplete concentric curved lines. I 

 fancy these divide the first leg into trochanter, femur and tibia, the 

 straight portion below being tarsus. In the diamond-shaped space 

 below the upper portions are parts (trochanter or coxa) of second 

 pair of legs and the lower of third. 



EXPLANATION OF FIGURES. 

 Fig. 1— Outliiifi of egg of i. hirta, x 45 diauis. 

 „ 2— View of egg surface, x 620. The dots arc intended to indicate the iiuogular corky 



aspect. 

 „ 3— Side view of a row of " fungus " process of chantarelle form, x 620. 

 „ 4f — More usual agaric form of these processes, x 620. The lower line represents egg 



proper, the others the outline (in section) of the corky covering. 

 „ 5 — Front view of pupa, x 11. 

 „ 6 — Lateral view of pupa, x 11. 



Betula, Reigate : 



April, 1904. 



