Lamellicorn Beetles from Tonkin. — Mr. G. J. Arrow 

 exhibited males and females of three species of Lamellicorn 

 beetles {Ectinohoplia) from Tonkin to show a hitherto 

 unrecorded difference between the sexes. The females were 

 remarkable for the clothing of beautiful golden scales upon 

 the pygidium and lower surface of the body, replaced in the 

 males by quite dull scales. Remarking that it was very 

 unusual to find females of any insect more brilliantly adorned 

 than the males, Mr. Arrow called attention to the fact that 

 in the present instances the golden scales were found only 

 upon a part of the body where they were concealed in the 

 ordinary position. Of one of the three species {E. suturalis) 

 only one sex has so far been described, while the other two 

 are new. 



BOREUS HYEMALIS, FEMALE, AND EGGS. — Mr. WlTHYCOMBE 



exhibited specimens of this insect from Ejjping Forest, first 

 seen on Nov. 13, in company with a small Carabid beetle, 

 Notiophilus palustris, which somewhat resembles it at first 

 sight. 



A BRED OrNITHOPTERON FROM SeLANGOR WITH PRECISE 



PUPA-CASES. — Prof. PouLTON exhibited three (out of five) 

 males and three females of Troides Jielena cerhera, Feld., bred, 

 July to September, 1920, by Mr. W. A. Lamborn, from larvae 

 or pupae found at Ulu Gombak, thirteen miles from Kuala 

 Lumpur, F.M.S. One female larva pupated July 11 and 

 emerged about 8.0 a.m. on July 18 — a very short pupal 

 period for so large an insect. One male was found hanging 

 to its pupa-case in the forest at 9.0 a.m. on July 18. Each 

 of the six butterflies was accompanied by its pupa-case, one 

 of each sex being mounted so as to show respectively the 

 external characters of a female pupa on the 8th abdominal 

 segment, and of a male on the 9th. The sexual differences 

 could be detected by the naked eye. 



The flight of certain Papilionidae sometimes main- 

 tained BY THE FORE WINGS ALONE. — Prof. PoULTON said that 



Dr. H. F. Standing had written to him as follows on the flight 

 of Papilio {Pharmacophagus) antenor, Drury : — ■" On the wing 

 it looks like a bird, the hind wings seeming to take little part 

 in the flight and looking like the body of a bird." The obser- 



