44 THE entomologist's record. 



pupa in all aspects. The following features, however, may be observed : — 

 The front of the head and thorax occupy a length of less than 2-Omm. 

 (pi. i., fig. 1). The front of the head presents four transverse elevations 

 in succession, which appear to be the labrum, mandibles, maxill!i:>, 

 and labium. Of these the second is the longest and about -Sram. in 

 length, the first and third shorter, and the 4th shortest. Above the 

 first the front of the head is marked off by an encircling groove at 

 this aspect. Below and beside this joint, and a little beyond the end 

 of the ridge marking the labrum, is a rounded elevation, the antennae, 

 and in the mature pupa some dark eye pigment, just farther out than 

 this. Its disposition suggests, perhaps, rather the larval than the 

 imaginal eye. Just below the antennte the second ridge has, at its 

 outer extremities, two elevations, which probably represent the jaws. 

 The third ridge has the maxillary palpi very obscurely if at all repre- 

 sented, and the fourth has at each end an actual labial palpus, 

 projecting from the pupal surface and apparently of two minute joints. 

 Below these are the thoracic legs, each as an appendage at the end of 

 a central transverse elevation, following on as a series those of the 

 head, the first depressed in the middle and suggesting that it repre- 

 sents the trochanters of each side, the third comparatively large. The 

 legs are each about 1mm. in length and consist of a minute coxa, a 

 short femur, a tibia which is much the greater part of the leg, and a 

 tarsus small and not obviously jointed. The legs lie flatly on the 

 pupa, but are quite free, not adherent to the pupa or to each other. 

 Of wings there are no traces, but there are on the thoracic segments 

 some irregularities, ranging with those representing the lateral flanges 

 on the abdominal segments. 



The prothoracic spiracle cannot be made out (in the preserved 

 specimen) but the flrst seven abdominal spiracles are very distinct, and 

 of a definite brown colour. The pupa terminates in a very definite 

 cremastral knob, almost a little globe (-Smm in diameter), carrying 

 some ordinary hairs and several stronger browner ones diverging to 

 either side. The texture of the pupal skin is extremely flimsy and 

 delicate. It cannot be removed from the moth except in bits, and 

 the moth itself breaks it up in this way when escaping it. The 

 representation of the mouthparts as four segments (pi. i., fig. 1), pre- 

 cisely comparable with the thoracic ones, in a moth so high as On/i/ia, 

 is especially worthy of notice. 



The $ moth is of similar form to that of the pupa. Her head is 

 invisible, only that of the pupa-case which continues to cover it being 

 seen. 8he is of a rather deep blackish-brown, owing to a continuous 

 pile of short hairs. I do not know where the hairs come from that she 

 deprives herself of to place amongst her eggs, but I fancy they come from 

 the whole surface, rather than altogether from the seventh segment. If 

 this be so, then she has a long set of deciduous hairs mixed with the 

 shorter persistent ones. The legs (pi. i., figs. 2 a, I, r) are very short, 

 thick, and strong, barely a millimetre in length, including their attach- 

 ment ; they have a femur •2.5mm. thick, and the tibia is over •2mm. They 

 consist of a good wide basal plate, lying flat on the body of the moth, 

 rising a little to the articulation. This is probably the trochanter. 

 The coxa can hardly be made out distinctly, but is, apparently, 

 present. The femur is barely twice as long as thick, swollen irregu- 

 larly in form ; the tibia is not twice as long as thick, it is flask-shaped, 



