INSBCTA AITI:I:\ 



Spring and Catch. Most of ti. m.-ns r\.iminr.i *li..w no Iran- >f thm 



structures, luit in two the appearance drawn in tig. 1 1 mn In- plainly Keen. The spun- 

 (fig. 1 1, ) in clenrlv in a vestigial n.litii.n, its manuhrium being merged in the ventral 

 regiuii <>t tin- fourth alxlniuitml segment, whih- the combined den* ami mucro terminate 

 in ii liltuit, li.ini'lr.l kiiuli. 



Tli.- <-at i-li (ivtinarulum) is represented by a pair of small rugose prominences 



1 1 /) <>n the tliinl bdoBUMl segment. 



Anal Spines. The anal spines are nearly as long as the foot-claw, slightly and 

 \nilv nirved (figs. 11, 12). They are situated on short, contiguous papillae. In all 

 tin- .-|M-i-inu-iis examined the spines arc slightly asymmetrical (fig. 12), hut thin is 

 l>r.>luil.lv due to the position of one having lieen slightly shifted. 



REFERENCES. 



1906. C. B"fl"1T" DM Sjstem dcr C'ollembolen nebst Itesrhreibun;; neuer Collembuk-n de* Hamburger 



naturhistoruciicn Miun-uniK. 2 Beihcft turn Jahrb. titr Hamburg, tritttntth. Aimfnltni, zxiii., 



I'JiKJ, pp. 147-1K*. 

 1902. 0. II. CARPKXTKR. " InwcU Aptera," in Report on Collation*, \'oyagt tf Soutkern Crott, 



pp. 221-3, pi. xlvii. London (British Mtucnm), 1902. 

 : Keottuh National Antarctic Expedition. '.Scotia' Collection*. Collembola 



from the South Orknej Inlands. I'ror. Itoyal Sor. Edinl>., xxvi., HKiC, pp. i ;:;- i-::. pb. 1-2. 

 1906. F. WAHUIKRN. AnUrktischc und ralNuitarktuKhc Collembollen f^aammelt von dc>r nchwcdiiielien 



SOdpoUn-xpfdition. Wt*>+nch. Ergtbn. dtr Sfkmti. SwIpolartxptdHioit, I'.Hil-S, vol. v . 



1906, pp. 1-22, pk. 1-2. 

 1902. V. WILLKM. Collembolt* : Ritultatt du Voyagt ! & Y. ' Brifica ' en 1H97, 189M, IM-.I-.I. 



Sritntifaur*. Anren, 19O2. 



EXPLANATION OF PLATE. 



hodgtoni. 



Ki-i. 1. Left feeler with part of head, donal aspect; a, saWpicai, depreaed enn-drpnn : ^ teatorj 

 brittle ; (I, Benwry i>ine on third anU-mml segment ; r, poit-antcnnal organ ; /, dentiform 

 cephalic KMe-organ ; 1, f, variations in form of pott-anU'iitml organ from other specimen*. 

 Ki<.. 2. Right filler, lateral aspect of extremity ; a and d as in fig. 1 : e, apical, protrtwible iente-organ. 

 :t. I*ft mandible, seen from inner aspect. 

 \.~ I A ft iiiuii.iil.li-. donal aspect. 

 5. Right maxillnla, shoving teeth and molar area. 

 . FID. 6. Left maxilla ; , stipes ; y. galea ; /, lamellae ; />, |*lp. 

 Ki<i. 7. .Second pair of maxillae forming labium. 

 l'i'.. 8. Labrum. 



Kit;. 9. Right hind leg, showing daw, vestigial empodiam, and tenent hairs on foot. 

 Fie. lc. Ventral lube on first abdominal segment, seen from right side. 



11. Part of hind abdominal segment*, showing anal spiuea, and vestigial spring (*) and caU I 



lateral view. 

 Kn; 12. Tip of abdomen, with papilhe and anal spines ; postcro-ventnl view. 



All figures an magnified GOO diameters. 



