( cxxv ) 



Peronea cristana, varieties of, exhibited, xlvi ; and P. hastiana, aberrations 



of, exhibited, xlvi. 

 Peru, descriptions of Micro-Lepidoptcra from Bolivia and, xcii. 

 Phorida; and of several Brachycerous families in the Diptera, the systematic 



aflSnities of the, xxvii, 283. 

 Phylogeny, notes on the value of the genitalia of insects as guides in, xlix, 



297. 

 Pieris napi, forms of, exhibited, xlvii ; gynandromorphous example of, 



exhibited, Iv ; with Swiss P. napi, var. hri/onix, esjjeriments in crossing, 



exhibited, Ixxxvii. 



Polyijonia c-albinn, life history of, Ixxxviii. 



Polyommatns hellartjus, forms of, exhibited, Ixxviii. 



Populi, hybrids of OcellatHs and, exhibited, Ixxvi. 



Porthesia, hybernatiug, exhibited, Ixxvi. 



Potato Gnat in Britain, exhibited, ii. 



President for 1909-10, nomination of, Ixxxv, xciii. 



Protected insects, the Bulbul feeding its young on specially, xxxi. 



Pseudogynes, of an ant, exhibited, xlvii ; of Formica rtifa, exhibited, Ixxv. 



Psendopontia, mimetic relation of Xychitoiia and, exhibited, xiii. 



Purley, rare beetle from, exhibited, lix. 



Pyralis lieniyialis at Oxford, exhibited, iii. 



Pyrenees, butterflies from the, exhibited, i. 



Pytho depressHs, abnormal, exhibited, lis. 



Queensland, two new Diplopterous Hymenoptera from, xiii, 89. 



Rhinoceros bicorma followed by extraordinary CEstrid flies {Spathic era) , 



mimetic of a large species of Salius (Pompilidu), xxix. 



Rhopalocera from the Canaries, exhibited, xlix. 



Salius (PompilidH:), Rhinoceros hicornis followed by CEstrid flies {Spathicera), 



mimetic of species of, xxix. 



Saxony, moth destruction in, Ixxxiv. 



Scoliidse, notes on the Thynnidse, with remarks on some aberrant genera of 



the, 63. 



Seychelles, leaf insects from, exhibited, xlvii. 



Sitaris muralis, larva of, exhibited, iii. 



Sleeping Sickness, microscopic preparations to illustrate the Entomological 



aspects of the, exhibited, xlv. 



Smerinthus populi, variation in, exhibited, xxiii ; hybrids of iS*. ocellatus and, 



exhibited, Ixxvi. 



Spain, butterflies from South, exhibited, liv. 



Spider, nest of wasp from Assam, with occupant attacking, exhibited, 



xlv. 



Stenoptilia graiidis, on, xxvii, 317. 



Stereoscopic photographs from nature, exhibited, xlvii. 



Stick insect, exhibited, Ixxvi. 



Switzerland, Melitceas from South, exhibited, xxi ; rare and variable species of 



butterflies from, xlvi ; aberration in butterflies from, exhibited, Isxxvi ; 



exiDeriments in crossing British Pieris napi with P. napi, var. bryonim 



from, exhibited, Ixxxvii. 



Tachinidw, rare, exhibited, Ixxiv. 



Tasmaniau Malacudvrmata, revision of the Australian and, Iviii. 



