118 



THE ENTOMOLOGIST S RECORD. 



nearly as wide an attachment {i.e., 0-3mm.) to the body, but is only 

 about O'Bmm. long, and is not always easy to find (even if it always 

 exists). One specimen has very remarkable wings, illustrating the 

 variability of obsolete structures. The two wings are respectively 1 -iimm. 

 and l-5mm. by 0-3mm. wide, ending in one case with a tubular look- 

 ing process at one side, on the other in an irregular spathula-like 

 expansion. The ovipositor presents two oval plates each about 1-Omm. 

 broad, by 0'5mni. long, which form the opening. Each of these plates is 

 clothed with fine hairs, which also form a marginal row, and has a 

 dark (highly chitinised) rod attached to its anterior margin towards 

 the outer angle, and about 0-6mm. long. The next segment forms a 

 more complete circle, but is less solid, and has two very short (•14mm.) 

 rods towards its lateral aspect. The spiracles are slits about 0-12mm. 

 long, with double chitinous margins along the whole of one side and 

 one half of the other (posterior). From the end of the latter, i.e., 

 about middle of hind margin, a rod, apparently double (•14mm. in 

 length), dips down apparently along the side of the tracheal tube. 



One 2 cocoon of < >. aiiroliinbata when opened showed a cocoon of 

 an ichneumon withm it, a dense oval, ribbed cocoon of whitish silk, 

 with longitudinal darker flutings. One compartment of the (K aiirn- 

 liiitbata cocoon was quite empty and flattened, the other contained a 

 larval-skin of Dn/i/ia, a pupal-skin of (>rii;jia, a small shrivelled ? of 

 Ofiiijia denuded of wool and containing eggs (perhaps a dozen), and 

 the ichneumon cocoon, which was well coated with and entangled 

 amongst the loose wool of the moth. The cocoon looked as if made 

 first and mixed up in the hairs afterwards. If this be correct, then 

 the ichneumon larva emerged from the pupa, and the moth, neverthe- 

 less, emerged afterwards. As against this, the ichneumon cocoon was 

 loosely, if at all, attached to the cocoon of the moth, as one would 

 expect it to be if it emerged from the pupa. In that case it must 

 have emerged from the moth. In any case, the ichneumon and the 

 moth both came from the same larva, and the moth, though contain- 

 ing few eggs and (not being fertilised) laying none, was nevertheless 

 energetic enough to denude herself of all her clothin". 



Fi<i. 

 1. 



2,3,4, 



5,6. 



Fig. 

 12. 



13. 



14. 



14((. 



lo. 

 10. 



Explanation of Plate IV. 

 Fig. 



Head of Orgyia aurolimhata, ? , 7, 8. 

 X 23, showing anchylosed 

 joints of antennte, labial palpi, 

 minute maxilhe, remarkable 

 process (teratological) on one | 9, 10. 

 side. 

 1st, 2nd, and 3rd legs of ? x 14, 

 showing tibias and 5 tarsal 

 joints just distinguishable, but 11. 

 all anchylosed into one mass. 



Forewing and hindwine x 14. 



Two curious malformations (tera- 

 tological) of forewings of one 

 specimen x 14. [These figures 

 are inverted.] 



Two specimens of last two ab- 

 dominal segments (8th and 9th) 

 flattened out, showing rods, 

 etc., x 13. [Also inverted.] 



Spiracles of 1st, and three other 

 abdominal segments, x 60. 



Explanation of Platk V. 

 Fig. 



Lateral view of anterior end of 



? pupa X 5. 

 Ventral view of same x 7. 

 Anal armature of ? pupa x 13. 

 Enlarged hook from same to show 



curvature of end. 

 Face of cT pupa x 7. 

 Anal armature of c? pupa x 13. 



17. 



18. 

 19. 

 •JO. 

 21. 



(/, /;, c, Eelative height and width 

 of eggs of Orgyia spleiuUda, 

 O. (luroliiiibata, and O. antiijua 

 x20. 



1st leg of ? O. splendichi x 24. 



Claw of same X. 5.5. 



1st leg of cT O. aplendida x 13. 



1st leg of J 0. aurolimbata x 13. 



