1906.] 



Wheeler, The Ants of Japan. 



321 



Body and appendages yellow; clypeus, upper surface of head and gaster 

 dark brown. Mandibular teeth black. 



Female. Length 4.5-5 mm. 



Dark brown; mandibles, mouthparts, antennae and legs yellow; mandibular 

 teeth black. Wings uniformly- brownish, with brown veins. Surface of body 

 finely shagreened but shining, covered with long grayish pubescence, as are also 

 the legs and antennae. Hairs sparse, yellowish, erect, like those of the worker. 



Male. Length 1.5-1.6 mm. 



Resembling the worker in size and coloration, except that the thorax is 

 dark brown like the head and gaster. Mandibles, legs, antennas and genital 

 valves slightly infuscated. Surface of the head, thorax and gaster very 

 glabrous. Wings like those of the female. For the conformation of the 

 genital valves see Fig. i, a-c. Erect hairs on the body similar to those of the 

 worker but shorter, absent on the antenna! scapes and very sparse on the legs. 

 Pubescence almost imperceptible except on the legs. 



Fig. I. Prenoiefiis flavipes (F. Smith), Mayr. Male. «, outer; (5, 

 median; and c, inner genital valve. 



The types of this species are from Hiogo. Forel obtained workers 

 from Osaka, and all three phases imported from Japan into Hamburg 

 with plants. I have before me a large number of specimens of all 

 three phases collected by Professor J. F. Abbott near the Marine 

 Biological Laboratory at Misaki, and by Mr. Hans Sauter in the 

 following localities: Kanagawa ("under bark at edge of ^pond"), 

 Yamanaka ("sifted in deciduous and pine woods"), Negishi, Takaki- 

 yama and Okayama. There are several males from Okayama taken 

 May 2 1, '05 and winged females from Kanagawa taken April 8, '05, 



3 2 . Lasius niger Livin . 



F. Smith, Trans. Ent. Soc. London, 1874, p. 403. 



FoREL, Bull. Soc. Ent. Suisse, X, 7, 1900, p. 269, § 



FoREL, Mittheil. naturhist. Mus. Hamburg, XVIII, 190 1, p. 66. 



Numerous workers and a few dealated females of this well-known 

 ant were collected by Professor J, F. Abbott near the Marine Bio- 

 logical Laboratory at Misaki, and by Mr. Hans Sauter in the following 

 [Scpl., igo6.] 21 



