XXV 



plates, the eggs massed within the body of the gravid female could be 

 distinctly seen under a low power. The female was alive when brought, and 

 remained so until this morning (31st May) : she manifested more activity 

 than her long heavy abdomen would have led one to expect; no doubt the 

 very high polish of the under surface aided locomotion. The thoracic 

 structure seems quite to negative the probability of this female having 

 possessed wings." 



Messrs. F. Du Cane Godman and Osbert Salvin communicated " A List 

 of Diurnal Lepidoptera collected in the Sierra Nevada of Santa Marta, 

 Colombia, and the vicinity." 



New Part of ' Transactions.' 

 Part II. of the ' Transactions' for 1880 was on the table. 



August 4, 1880. 

 J. W. Dunning, M.A., F.L.S., Vice-President, in the chair. 



The minutes of the previous meeting were read and approved. 



Donations to the Library were announced, and thanks voted to the 

 respective donors. 



Ecchibitions, dc. 



Sir Sidney Saunders forwarded for exhibition four living specimens of 

 Prosopis ruhicola, all stylopized females recently bred from larvae extracted 

 from briars received from Epirus ; each of these small bees bearing the 

 projecting puparium of a male Hylechthriis, and in one instance two of the 

 latter. He also communicated the following notes thereon : — 



" In their pupal nymph-condition these bees had become considerably 

 distended and yellow (instead of opaque white), their apparent discomfiture 

 from the presence of these internal parasites seeming to account for the 

 usual appearance of stylopized specimens before others. Immediately on 

 divesting its pupal pellicle, when the imago Pwsojns is soft and moist, 

 the parasitic larva protrudes between the abdominal segments its white 

 head, which soon assumes a castaneous tinge; and about the third day, 

 when the integument has become more or less corneous, an internal 

 separation takes place, whereby the apex becomes semi-transparent, the 

 pseudo-pupa retiring within to undergo its metamorphosis as a true pupa 

 or nymph. This intermediate stage corresponds with that which Fabre 

 has described as the ' troisieme larve' in Sitaris and Meloe, exhibiting 

 within its puparium (the indurated larva-skin) a sluggish movement for 



E 



