154 [J«iy. 



extremity. Segmental divisions very clearly defined to the end of the seventh 

 abdominal, the remaining segments appearing to be fused together. Shell smooth, 

 somewhat polished except on the abdomen, which bears some single scattered fine 

 golden hairs, these being short in the dorsal, but rather longer in the lateral, region. 

 Head, thorax, and abdomen, blackish-fuscous dorsally, the last being a shade paler 

 than the two former. Et^es showing through as large round blackish spots. 

 Antennal cases only slightly shorter than the wing-cases, which reach a trifle beyond 

 the end of tlie fourtli abdominal segment, and are dorsally concolorous with the 

 thorax. The second and five following abdominal segments show dorsally two 

 transverse rows of spikelets, pointing obliquely backwards, the anterior row, which 

 consists of the longer and stouter spikelets, being close to the anterior margin, while 

 the posterior row is just behind the middle cf the segment. The eighth abdominal 

 shows the anterior row only ; this is ill developed, and is the last of the series. 

 The whole of the ventral is more or less pale as compared with the dorsal 

 surface, the fuscous colour being there much suffused with ochreous, and more or 

 less replaced by it except on the wing-cases and the posterior margins of the abdo- 

 minal segments. Anal extremity, while shortened ventrally, is prolonged dorsally 

 into a blackish, pronounced, spalulate projection, rounded off terminally, and armed 

 posteriorly with several orange hooked bristles, which retain a most tenacious hold 

 on the silk of the cocoon. 



The male imago, resulting from the pupa described above, 

 emerged just before 8 a.m. on April 21th last. Mj exact observations 

 show that the bred moths have, as a rule, emerged in the earlier half 

 of the morning, though I have notes of two having done so be- 

 tween 9 a.m. and noon. 



Norden, Corfe Castle : 



May loth, 1909. 



P.S. — Although, in Dorset, C. rusticana has only occurred to me 

 in very low-lying heath-bogs, I have, throughout the four weeks since 

 my arrival in this mountainous region on May 22ud, been meeting 

 with it in many localities in this neighbourhood, and always in very 

 dry spots, such as sandy moors, railway banks, mountain sloi'es, &c. 

 None of these spots happen to be less than 700 ft., and one is pro- 

 bably twice that height, above sea-level, so V. Hornig's statement 

 that the insect inhabits mountainous districts appears to hold good as 

 regards Britain, although Barrett was evidently unaware of this. In 

 all probability the larvje here feed on Vaccinium myrtillus, which grows 

 in all the localitiesin which I have taken the species, and has been 

 recorded as one of its food-plants by some continental authors. 

 Various representatives of both sexes have been netted in this neigh- 

 bourhood whilst on the wing, in either bright or subdued sunshine, 

 during the latter half of the afternoon and in the evening, but the 

 males, which fly far more actively than the females, have somewhat 

 outnumbered the latter. — E. R. Bankes, Aviemore, Inverness-shire, 

 N.B. : June 20th, 1909. 



