368 BRITISH LEPIDOPTERA. 



occupy a nearly circular area of a diameter about the same as the 

 width of the 9th segment, but about a ^ of their width encroaches 

 on 10 and by so much leaves the anterior border of 9. The posterior 

 border of 8 is, however, sinuate to correspond with them. The female 

 area obliterates the segmental divisions of 8, 9 and 10 in middle 

 line. The posterior half of 8 and the anterior half of 9, over this area, 

 are very smooth ; at the anterior angle of this area is a minute 

 pore, with lines leading to it, suggesting that it really belongs to 

 8. A hardly discernible pore exists near posterior border, of 9, with 

 appearance of belonging to 10. From the smooth area proceed 

 fine raised striae, merging into the surrounding sculpturing, viz. 

 — pits, except towards anal scar. The sculpturing of the prothorax, 

 when viewing the pupal skin as a transparent object, consists of paler 

 lines of sulci breaking the surface up into separate plates, here 

 and there with complicated dendritic branches ; there are no pits, 

 and the hair-points, with minute hairs, perhaps about -04mm. 

 long, are rather numerous, 16 being counted on one side only, 

 but are without any definite arrangement. The prothoracic lip of 

 the 1 st spiracle is clothed with short spicules, looking like a short 

 comb when a row of them is got in profile. They are about -04mm. 

 to '05mm. long, 'oi mm. broad and are about 40 to a millimetre when 

 they can be got into view as a continuous row parallel with the 

 spiracular opening ; there are perhaps 10 to 12 rows of them, or 

 might be so described, except that they are placed a little too 

 irregularly to be described as in rows. On the mesothorax, the nature 

 of the sculpturing is identical with that on prothorax but no hair-points 

 are detected, . the broad lip or plate over the 1st spiracle has a 

 very minutely rough surface of rounded shagreen-points. The 

 metathorax is also apparently without hair-points. The callosities 

 present a somewhat labyrinthine set of narrow raised walls looking 

 dark, owing to the thickness of their chitin, the marginal wall 

 being fairly continuous as a boundary. On the 2nd, 3rd and 4th 

 abdominal segments dorsally, the subsegments seem distinct to the 

 number of 5, of which the 4th and 5th are perhaps again sub- 

 divided ; the divisions are pale sulci that are more than those of 

 the sculptural wrinklings, but can hardly be called sutures. The 

 first subsegment contains many large pits, of the type that is 

 characteristic of Sphinges (and Manduca), viz., a raised dark margin, 

 with the margins finely crenulated, the centre much paler (very 

 thin) and with shading radiating to the centre from the crenulations. 

 Each side of the 2nd subsegment has a dark point beside the 

 dorsal line, with a median sulcus that traverses the first subsegment 

 passing back to the 3rd and separating them. The pits in the 2nd 

 and following subsegments are only about one-fifth the diameter of 

 those on the 1st. The head presents several hair-points on the labrum 

 and basal to it, but none over the vertex or in the antenna-basal 

 region are detected. On the remaining abdominal segments, hairs 

 are rare except just anterior to the spiracles and in the deep 

 trough in front of the spiracular flange. The pits are very large 

 along the front of the margins and mainly of the special Sphingid 

 type (Chapman). The pupa measured 2] J ins. in length, and fin. 

 in diameter ; its stout proboscis projected ^in. from the body, bent 

 downwards at a slight angle for little more than -Jin., and then 



