| OCR Text |
Show 796 MR. D. BRYCE O N T H E [June 15, 4. CALLIDLNA ALPIUM, Ehr. Ehrenberg's solitary species from Spitsbergen, previously found by him on the Swiss Alps. This confirms my identification with his species of the form found by me ou the South Coast of England. Two or three specimens only. 5. CALLIDLNA CONSTRICTA, Duj. In moderate numbers. 6. CALLIDLNA TETRAODON, Ehr. A few specimens. 7. CALLIDINA MUSCULOSA, Milne. A very few examples. 8. CALLIDINA VENUSTA, n. sp. ( = Macrotrachela elegans, Milne (7).) (Inasmuch as the genus Macrotrachela, proposed by Milne, has fallen to the ground, the various species described by him have to be redistributed. M. elegans would thus become Callidlna elegans, but that name had already been employed by Ehrenberg for a very different form. I take this opportunity of renaming a well-marked species, which, from the unfortunate choice of specific name, has lately been overlooked.) Sf>. Ch.-Bather slender, of medium length: corona very narrow (0*030 mm.), about equal to collar, a fourth wider than neck (0*023 mm.); disks separated by deep notch. Upper lip slightly convex. Dorsal antenna equal to or exceeding neck thickness. Head, neck, and trunk rather parallel-sided in dorsal view. Foot very short, of four joints rapidly tapering; spurs partly hidden, two short acute cones, held nearly parallel. Mastax scutelliform. Baud (0*016 mm.) long, formula 6/6 to 10/10. Food moulded into pellets. Maximum length 0*250 mm. The present specimens vary from the type in having only about 6 teeth on each ramus, a variety already noticed in the London district. This species is rarely found iu moss growing in positions usually dry. I have elsewdiere noted its quasi- tube -making habits (2). 9. CALLIDINA RUSSEOLA, Zelinka. This bulky species was present in some numbers. 10. CALLIDINA LATA, Bryce. Two specimens occurred in one washing. 11. CALLIDINA ASPERA, Bryce. One living and one dead example. 12. CALLIDINA PLICATA, Bryce. The most numerous species. |
