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Show 31 M R . A. G. B U T L E R O N CERTAIN SPECIES O F L Y C J E N I D A * . [Jail. 10, Fig. 4. A group of the same form of spicula as No. 3, in situ around a skeleton-fasciculus, from the specimen of Hyalonema in the Bristol Museum. Magnified 108 times linear. Fig. 5. A n infiato-fusiformi-acerate external defensive spiculum hemispinous distally. Magnified 108 times linear. Fig. 6. A spiculated cruciform internal defensive spiculum. Magnified 175 times linear. Fig. 7. Inflato-acerate tension spiculum. Magnified 108 times linear. Fig. 8. Large atttenuato-rectangulated hexradiate interstitial spiculum. Magnified 90 times linear. Fig. 9. Small attenuato-rectangulated hexradiate interstitial spiculum. Magnified 90 times linear. Figs. 10, 11, 12, 13, 14. Various states of development of the cylindro-cruciform interstitial spicula, common to the basal mass of sponge and the coriaceous investment of the spiral column of the cloacal system. Magnified 175 times linear. Fig. 15. Attenuato-rectangulated triradiate tension spiculum, occasionally found dispersed among the other tension spicula. Magnified 90 times linear. Fig. 16. Asperated or jointed condition of portion of the long acerate spicula of the spiral axis of the cloacal system. Magnified 108 times linear. Fig. 17. A detached joint from a specimen similar to that represented by fig. 16, from which a portion has been fractured longitudinally, exhibiting the uniform solidity of the incrusting silex. Magnified 108 times linear. Fig. 18. Quadrihamate retentive spiculum. 5. Note on the Identity of certain Species of Lyccenidce. By A R T H U R Gr. B U T L E R , F.Z.S. An observation in the second part of Mr. Hewitson's valuable on * Diurnal Lepidoptera,' p. 53, has induced me to compare the description of Hesperia freja, in Fabricius's ' Entomologia Systematica,' iii. p. 263. n. 19, with the numerous specimens of Lyccenidce in the collection of the British Museum ; aud I am now fully satisfied that this species, which Mr. Hewitson has placed provisionally at the end of the genus Hypolyccena, is perfectly identical with the well-known Myrina jaffra of Godart, figured in Horsfield's ** Catalogue,' pl. 3. figs. 5, 5 a. The only apparent defects in the description given by Fabricius consist in the misapplication of the term apex to the anal area of the hind wings (a substitution of frequent occurrence in early descriptions), and in the somewhat loose account of the position of the transverse lines on the front wings,-the internal discal line, which in some specimens is almost submarginal, being described as central. The corrected description would be as follows:- " Magna in hoc familia. Antennae atrce. Palpi albi, apice nigri. Corpus fuscum. Alee anticce supra fuscce, immaculatce, subtus albee limbo, lineola transversa discali strigaque postica Posticce fuscce, area anali albee fascia lata nigra. Caudee anterior longissima alba, posterior brevior nigra marqine " Subtus albee striga postica valde undata atra. Margo strigis fulvis nigrisque. Apex alee prominet fascia lata, leete ceerulea, quee utrincpue terminatur puncto magno atro." |
