Ojoezia atrata and its variation. 263 



" going down " for the last two or three days. On May 8th I 

 further note the last larva has disappeared some few days since. The 

 first moths, g and ? , appeared yesterday morning. To-day, 14 

 moths came out, 7 (? , 7 ? . They appeared between 7 a.m. and 8 a.m., 

 none after 8 a.m. On the 9th, 14 moths emerged, all <? but one. 

 I got six pairings. The moths rest with wings flat, but when paired, 

 the $ s sit with wings slightly raised, and the <? s with the wings 

 closed over the back, butterfly fashion. The moths paired about 

 10.30 a.m., and were still paired at 12.15 ; at 1.20. p.m. they were 

 separated and a few eggs already laid. The moths paired almost 

 immediately on an opportunity being afforded. May 10th, i$s 

 emerged. 



Pupa : The larvae make slight cocoons amongst the rubbish on the 

 surface, not below, unless the material is very loose. The pupa is 

 about 10mm. to 11mm. long, of ordinary light brown tint, 3mm. at 

 widest, opposite 4th abdominal segment, fairly circular in outline 

 everywhere, but with sufficient of the extra thickness opposite the 

 wings and appendages to be easily seen when looked for, as if they 

 were added after the general smooth outline had been determined. 

 The end of the 3rd tarsi project beyond the wings as a free process, 

 over the 5th abdominal segment, for about 0-3mm. The wing- 

 nervures are all very prominent and conspicuous, as somewhat sharp 

 margins in which the hollows of the interneural spaces meet. Two 

 prominent features are the cover of the prothoracic spiracle, which is 

 a raised dark button, the margins being especially dark, due to one 

 here seeing the under incurved margin behind the upper surface. 

 They are slightly over 4mm. transversely to pupa, 3mm. longi- 

 tudinally ; they are covered with minute, smooth, rounded elevations, 

 each carrying a fine hair ; these elevations are ranged in rows (a little 

 irregular), and are about O-Olmin. wide and 0'015mm. long, and are 

 of the same size (approximately) as the skin-points of the inter- 

 segmental membrane beside them and the fringe of fine hairs on the 

 margin of the prothorax opposite them. These buttons are conspicuous 

 enough to be easily seen, almost to attract attention, without a lens. 

 The anal armature consists of two sharp spines, slightly diverging, 

 each about 0-3mm. long. On neither the 9th nor 10th abdominal 

 (two last) segments are any hooks or hairs of any sort. The dorsal 

 margin of the 10th abdominal, or rather the suture loetween the 9th and 

 10th, has its margins dark and thickened, slightly crenate at the 

 9th, more extensively developed on the 10th, with a crenate or 

 nodulated margin and a special deep recess medially. The small pits, so 

 common on pupa3, are absent on the mesothorax and appendages, but on 

 the prothorax there are, on either side, 17 or 18 along the front margin, 

 and two of them, in defined pjositions, have a small transparent spot in 

 each of them. On the metathorax and abdominal segments (except 

 9th and 10th) they are abundant. The hairs are (on one side) on the 

 prothorax, four ; on mesothorax, three, in a median transverse line ; 

 on the metathorax a similar three, with a fourth close to wing-base ; 

 on the 1st abdominal i and ii near front and back margins of segment 

 respectively ; on the 2nd and 3rd abdominal the same, with iii in front of 

 spiracle. On the 4th abdominal iii is more above the spiracle, and 

 there are two more hairs ventrally at posterior margin of segment. 

 On the 5th abdominal segment these are present, and also a hair in 



