84 Christmas Island. 



[1887]. The specimens differ little, except that some are rather 

 smaller and paler than others, and with conspicuously smaller head." 

 A large series of the various forms of this species from flying 

 Fish Cove, August-October, 1897, and February, 1898 ; from 

 north coast, December, 1897; and from north part of island, 

 January, 1898. The workers vary from 3-9 mm. in length. 

 The females are 10-11 mm. long and 22-25 mm. in expanse. 

 They are of a rather darker chestnut- red than the workers, and 

 the abdomen is black, clothed with short grey hairs. The wings 

 are yellowish hyaline, with yellowish nervures. The males are 

 7mm. long and 14mm. in expanse; the upper part of the head 

 is black, the antennae and front of the head and face reddish. The 

 thorax is reddish, with brown or black markings, and the abdomen 

 is black, with the sutures light reddish. The legs are reddish, with 

 black femora. Workers found in a rotten stump. 



5. Notogonia alecto (?). 



? Larrada alecto, Smith: Journ. Linn. Soc, Zool., ii, p. 103, n. 6 (1858). 



Long. Corp., (^ 7, 9 10 mm.; exp. al., J' 11, 9 17 mm. 



Black, head and thorax thickly and finely punctured, clothed 

 with a very fine silvery pile, especially on the face, scutellum, and 

 abdomen ; middle and hind tarsi more or less reddish in the female, 

 and hind tibiae edged within -^ith silvery pile ; scutellum oval, 

 much longer than broad, thickly, coarsely, and very irregularly 

 rugose-punctate, wings brownish hyaline, with brown nervures. 



Nine specimens, from Flying Fish Cove, August-October, 1897; 

 east coast, September, 1897; north coast, 1898. 



Apparently identical with a specimen marked " Larrada alecto, 

 Smith," from Celebes; but as we have no authentic specimens of 

 that species from Singapore, the original locality, I am not certain 

 that the Christmas Island insect is the true alecto. 



6. Odynerus polyphemus. 



Odynerus polyphemus, Kirb. : P.Z.S., 1888, p. 651, 



"Long. Corp. 10mm. ; exp. al. 17mm. 



"Black, thickly and closely punctured; head with a yellow 

 spot between the antennae ; the orbits opposite the antennae very 

 narrowly edged with yellow ; a yellow streak on each side of the 

 base of the clypeus, just below the antennae, and a yellow streak 

 behind each eye, above the middle. Prothorax edged in front 

 with a broad yellow stripe, tapering and interrupted in the middle, 

 and cut squarely o£P on each side. Tegulae pitchy, with a very 



