14 a Canadian Arctic Expedition, 1913-18 



It is possible that this form is simply a variety of one of the numerous 

 described species of Entomobrya, though it does not agree accurately with any 

 published description that I have seen, or with any of the numerous European 

 species in my collection. 



Several specimens under driftwood on tundra, Demarcation point, Alaska, 

 May 16, 1914. F. Johansen. 



Many specimens under loose stones, Bernard harbour, Northwest Terri- 

 tories, May 1915. F. Johansen. 



Lepidocyrtus cyaneus Tullberg. 

 Plate 7, figs. 64-66. 



Lepidocyrtus cyaneus Tullberg, 1871, 1872, 1876. — Reuter, 1876. — Reuter, 

 L. and O. M., 1880.— Moniez, 1891.— Schott, 1894, 1902.— Dalle Torre, 1895.- 

 Lie-Pettersen, 1896, 1898, 1907— Schaffer, 1896, 1900a, 1900b.— Poppe and 

 Schaffer, 1897.— Scherbakov, 1898a, 1898b.— Carl, 1899, 1901.— Carpenter and 

 Evans', 1899— Borner, 1901a.— Krausbauer, 1902.— Voigts, 1902.— Axelson, 

 1903, 1904, 1905a, 1906.— Agren, 1903, 1904.— Wahlgren, 1906a, 1906b — 

 Carpenter, 1907. — Collinge and Shoebotham, 1910. — (Axelson) Linnaniemi, 

 1907, 1911, 1912. 



Lepidocyrtus purpureus Lubbock, 1873. — Oudemans, 1887. — Reuter, 1890, 

 1895.— Uzel, 1890.— Parfitt, 1891.— Guthrie, 1903. 



Lepidocyrtus violaceus Lubbock, 1873. — Parona, 1882, 1888. — Oudemans, 

 1887.— Uzel, 1890, 1891— Tomos vary, 1883. 



Lepidocyrtus metallicus Packard, 1873. — MacGillivray, 1891. 



Lepidocyrtus assimilis Reuter, 1890, 1895. — Schaffer, 1898. 



Lepidocyrtus pallidus Schott, 1893. — Reuter, 1890, 1895. — Lie-Pettersen, 

 1896. — (Axelson) Linnaniemi, 1912. 



Lepidocyrtus cyaneus var. pallidus Schott, 1894. — Wahlgren, 1906. 



Lepidocyrtus cyaneus var. assimilis Schott, 1894. — Dalla Torre, 1895. — 

 Wahlgren, 1908. 



Lepidocyrtus elegantulus Meinert, 1896. 



Dark blue or violet with iridescent scales. Denuded of scales, dull blue or 

 violet. Legs yellow beyond the coxae; dentes or entire furcula yellow; first 

 and second antennal segments yellow with purple apices; third and fourth 

 antennal segments purple; dorsum of head, and sometimes the mesonotum, 

 yellow; fifth and sixth abdominal segments and the anterior region of the fourth 

 often yellow. Narrow yellow intersegmental bands are often present. The 

 unpigmented regions may be white instead of yellow. Body stout. Mesonotum 

 inched, concealing the pronotum and projecting moderately over the head. 

 Eyes (fig. 64) 8 + 8, on black patches; the two inner proximal eyes of each 

 group smaller than the others. Antennae one-fourth to one-half longer than 

 the head. Antennal base black. Second and third antennal segments subequal 

 in length; fourth segment one-half to two-thirds longer than the third. Unguis 

 (fig. 65) with a pair of large lateral teeth, and with two pairs of inner teeth, the 

 proximal pair being at the middle of the inner margin. Unguiculus narrow, 

 sublanceolate, pointed, untoothed, extending three-fifths as far as the unguis 

 on the third pair, and about half as far on the first and second pairs of feet. 

 One clavate tenent hair. Fourth abdominal segment three to four times as 

 long as the third. Dentes a little longer than the manubrium. Mucro (fig. 66) 

 about as long as hind unguiculus, with long apical tooth and well developed 

 basal spine. Anterior region of head with short stiff fringed clavate setae. 

 Anterior border of mesonotum with a dense cluster of stiff clavate setae. Anten- 

 nae, legs and posterior region of abdomen with dense fringed setae. Dentes 

 with two dorsal rows of subclavate fringed seta?. Manubrium and dentes 

 scaly, the ventral scales more numerous than the dorsal. Length, 1 mm. 



