( xxxvi ) 
them, etc., and gave an account of the way in which the saws 
are employed for the purpose. Instead of cutting vertically 
the saws are turned sideways, a characteristic method employed, 
as Mr. F. Enock pointed out by many of the Homoptera. 
Both insects exhibited have been presented to the South 
Kensington Collections. 
Mr. C. 0. Waterhouse and Dr. T. A. Chapman also joined 
in the discussion, and Mr, A. Sich mentioned that some 
years since many larv'ao which appeared identical with those 
of P. aterrvma, occurred on the same plant in his garden 
at Chiswick. 
Glow'-worm pupa.—M r. H. Main brought for exhibition an 
empty larva skin of a c? “ glow-worm,” Lampyris noctiluca, 
with a living pupa, which was seen to be intermittently 
luminous. 
Melanism of Ematuega atomaria. —Mr. L. Newman 
showed a case containing a long and varied series of Ematurga 
atomaria bred from a melanic $ taken in cop. with a dark 
typical S at Bury, Lancashire. It was noticeable that, of the 
offspring, melanic and semi-melanic forms predominated. 
Hybrid Lycaenidae. —Mr. Newman exhibited and ? 
forms of Agriades thetis (bellargus), taken wild in North Kent, 
June 1909, by Sergt.-Major W. Crocker, B.E. He said they 
resembled examples taken on the same spot about sixteen 
years ago by the late Mr. E. Sabine, and suggested they might 
be hybrids thetis x coridon.* 
Ova of Sesia andreniformis.— Mr. Newman further ex¬ 
hibited ova in situ of Sesia andreniformis ; and IMr. A. E. 
Tonge a photograph ( x 26) of the same. 
Cetoniidae from Uganda. — Mr. O. E. Janson showed a 
remarkable gynandromorphous example of Goliatlms giganteus 
and other Cetoniidae recently collected by Mr. E. Brown in 
Uganda, British East Africa, including both sexes of the rare 
Foimiasimus 7'ussus. Nearly all the species exhibited were 
West African forms, proving the great similarity of the Central 
* Mr. J. W. Tutt, who has since had an opportunity of considering 
this exhibit, expresses his opinion that the butterflies are simply aberra¬ 
tions of A. thetis. The hybrid, =polonus, Zell., was recently discussed by 
him, and a list of known examples given (cp. Proc. Ent. Soc. 1910, pp. viii, 
ix). 
