NOTES ON THE LIFEHISTORY OP OCNOGYNA BOETICA. 239 



generally very large. Their shape is not quite so angular as in the 

 preceding stage, whilst the number of hairs on most of them has much 

 increased. The prothoracic plate has about fourteen hairs (very difficult to 

 count), four specially long ones being set in a row near its posterior edge. 

 Below it and farther back is the very small, low tubercle, still with a 

 single hair. The large tubercle still farther down, but more to the 

 front, has about six hairs (seepostea). Tubercle i + ii on the 2nd thoracic 

 segment has eight hairs, tubercle iii three hairs, tubercle iv five or six 

 hairs. Between iii and iv, but further back, in a similar position to that of 

 the small tubercle mentioned on prothorax, is a little single-haired wart. 

 The same arrangement occurs on the 3rd thoracic segment, tubercle i has 

 eight (possibly nine) hairs, some being very thin and not over long, 

 tubercle ii has certainly four hairs on this segment. Behind, and a 

 little below iii, is a very tiny wart in a line with the small wart between 

 ii and iii. It probably exists in preceding segment, but I could not 

 detect it. All the tubercles are larger in this segment. On abdominal 

 segments, tubercle i is still small and chevron-shaped, obliquely placed 

 with a single long hair and, apparently, a very fine short hair, near its 

 base. Tubercle ii large, nearly round, with six long hairs, tubercle iii 

 large, elongated, obliquely placed, with six hairs, tubercle iv is of medium 

 size, elongated, not obliquely placed, with four or five hairs, tubercle v 

 shaped liked iv, with three to four hairs, tubercle vi very small. On 

 the prothorax below the 2ml {lanie) tuhevde (not counting thoracic 

 plate) is an elongated, double-haired, small tubercle, situated below the 

 small wart, with a single hair ; still further down a large, 7- or 8- 

 haired, tubercle at front of the segment. The spiracle (whitish, ringed 

 with black and roundish-oval) is aft of this large tubercle, and rather 

 below it. Considerably further down and to the front again is the 

 medium-sized 4-haired tubercle. (This tubercle in some lights appears 

 to have 2 fine extra hairs). Below this are the feet. The prothorax 

 has, therefore, on each side, exclusive of the thoracic plate, four large 

 tubercles. On the 2nd and 3rd thoracics between iii and iv, is a wide 

 space on which is situated a very small, almost invisible, dot, suggesting 

 a spiracle ; iv occupies a similar position to vi in the abdominal 

 segments, and, as it is like it in shape, though larger, it probably 

 corresponds with it, and tubercles wanting in these thoracic segments 

 Avould be i (united with ii) and v ; iv (truly vi) is a largish tubercle, with 5 or 

 6 hairs, and iv is not far above the base of the feet. The feet are black 

 and shiny and carry a few hairs. On the abdominal segments is a very 

 small wart in front of tubercle iv ; vi is a very small elongated tubercle 

 above the base of the claspers. On the first two abdominals it has 

 only 1 hair, but 2 hairs on the following segments. Tubercles iv and 

 V also have one pair less each on the first two abdominals ; vi is 

 wantiny on the 8th abdominal. Except on the prothoracic and 8th 

 abdominal segments, I cannot quite satisfy myself as to the position 

 of the spiracles. The dimple mentioned before forms at irregular 

 intervals, when the larva is frightened and rolled up, a little behind 

 and above tubercle v, and in front of tubercle iv, on all the abdominals 

 except 8. On one segment I can even make out a rounded oval 

 ring in shape, just like the evident spn-acles on prothorax and the 

 8th abdominal. It is just the colour of the surrounding tissues, but 

 at this spot on all these abdominal segments the dimple forms (see 

 atitca p. 238). I cannot find a trace of spiracle elsewhere, unless the tiny 



