ANTHROCERA HIPPOCREPIDIS. 535 



legs whitish, shiny, and glassy-looking, each with a very minute brown 

 terminal hook, and two or three fine, short, glassy-looking hairs at the 

 joints. The prolegs are also shiny and glassy-looking, each with 

 12-14 very conspicuous black hooks on the inner side of the flange, 

 forming the terminal joint. The anal prolegs similar to the ab- 

 dominal prolegs, but placed transversely, not longitudinally. [We 

 are indebted to Mr. South for the larvae described, which he says came 

 from eggs " laid by the early June A. filipendulae." Description made 

 January 21st, 1898.] We have unfortunately been unable to get a 

 full-fed larva recently, and hence cannot give a description. Stephens 

 describes the larva as " greenish, with a broad yellowish stripe on 

 each side, and a row of black spots, the head black, varied with white, 

 the anterior legs brown, the following yellow, the rest black." 



COCOON. The cocoons measure from 25 mm. -27 mm. in lengtb, 6 mm. 

 in width ; of a pale straw-yellow colour, strongly ribbed longitudinally, 

 spun on a grass stem ; of the usual spindle shape, with a little silk 

 beyond the ends on the stem, and also a little silk round the stem. 

 The cocoon opens for the emergence of the pupa, by one dorsal flap, 

 which lies on the dorsum of the protruding pupa, its apex at the 

 thoracic-abdominal incision ; the two side slits show a small corner 

 of the 5th abdominal segment. 



PUPA (DEHISCED). The dorsal headpiece stands at the anterior 

 margin of the prothorax, and appears to have no other connections ; it is 

 narrow transversely, much wider on the posterior than anterior margin. 

 The prothorax is a piece of similar shape, but with the outer margin 

 folded down ; the tracheal linings project from its outer inferior angle 

 internally. The spiracle is a mere hollow between the pro- and rneso- 

 thorax, without any obvious margin at the surface, beyond the plain 

 edges of the segments, but, within the chink, the prothorax has a dense 

 coating of very short hairs. There is a small chitinous island just 

 behind this point, in the delicate membrane lining the groove from 

 which the antenna cases have been raised. This is probably a slightly 

 exposed portion of the femur of 2nd leg. Looking internally, and some- 

 what below this, the tracheal linings from the spiracle between the meso- 

 and metathorax are very evident. There is no trace of maxillary palpi, 

 except a wide, flattened base of the maxillas, extending outwards 

 under the eyes and ending in a point. This flat portion represents 

 the base of the maxillary palpus, and no further portion reaches the 

 surface, unless a minute, apparently separate, piece, at the upper end of 

 the 1st leg, be it. This piece seems more probably to be the extremity 

 of the femur, the more especially as a portion of the femur and 

 trochanter (there being a joint in it) is seen between the maxillse and 

 1st leg (i.e., the tibia and tarsus of 1st leg). This 1st leg reaches up to 

 the hollow between the eyes and antennae, and down to four-fifths the 

 length of the wing, where the tarsi terminate. The 2nd leg is outside 

 this, and does not reach up so far by -6 mm., and only reaches down- 

 wards to end of 1st leg, when it disappears between 1st leg and 

 antennas, which cover it. The wings appear to be free from the 

 abdominal segments, but doubtfully from the first, and the first ab- 

 dominal incision distinctly to open dorsally is that between 3 and 4, but 

 laterally and ventrally that between 2-3 is open, and is probably so 

 dorsally also, though not evident in the specimen under examination ; 

 the segments, where covered by the wings, have a very thin texture, white 



