153 



DESCRIPTIONS OF TWO NEW ACULEATE HYMENO- 

 PTERA FROM THE TRANSVAAL. 



By p. Cameron. 



Tachytes transvaalensis, sp. nov. 

 Black, the apical two joints of the four front tarsi reddish ; the 

 tibial and tarsal spines pale testaceous ; the calcaria testaceous ; head 

 and thorax densely covered with grey hair ; the apices of the abdo- 

 minal segments with broad bands of silvery pile ; the pygidium covered 

 with fulvous, mixed with silvery pubescence. Wings clear hyaline, 

 highly iridescent, the costa, stigma, and nervures pale testaceous ; the 

 second abscissa of radius shorter than the third ; the second recurrent 

 nervure is received in the middle of the cellule ; the apex of radius 

 is rounded below, obliquely sloped ; the first transverse cubital nervure 

 is roundly curved backwards to the cubitus. Eyes distinctly con- 

 verging above, where they are separated by the length of the antennal 

 scape and pedicle. Apical half of mandibles pallid testaceous, the base 

 thickly covered with silvery pubescence. Base of fore tarsi with six 

 spines. Pygidium clearly longer than it is wide at the base, gradually 

 narrowed towards the apex, as in T. mira, Kohl [cf. Ann. Hof. Mus. 

 Wien, 1894, pi. xiii. f. 32). The second joint of the flagellam is three 

 times longer than its thickness in the middle. The furrow on the base 

 of tlie metanotum is irregularly transversely striated ; it is indistinct ; 

 on top of the apical slope is a closely, distinctly, transversely striated 

 space ; the apical slope is transversely rugose. The long spur of the 

 hind tibiae is as long as the metatarsus. ? . Length, 14 mm. 



Transvaal. 



Palpi dark testaceous. The pubescence on the hind tibia) behind 

 has a golden tinge. On either side of the clypeus are three stumpy, 

 not very clearly defined, teeth or ridges. The pubescence on the 

 pygidium is close, short, and depressed. The second abscissa of the 

 radius is shorter than the space bounded by the recurrent nervures. 



It is possible that this may be T. hirsutus, Sm. (Cat. Hym. 

 Ins. Brit. Mus. iii. p. 300), of which only the male has been de- 

 scribed ; but the description is not sufficiently precise to enable 

 me to decide this without an examination of the type ; the pube- 

 scence of the head and thorax is certainly different, it being 

 yellow and " rich golden " on the face. 



Odynerus vaalensis, sp. nov. 

 Black ; the scape below, clypeus, labrum, a mark wider than long, 

 transverse above, roundly narrowed below and slightly incised m the 

 middle, a band, narrowed in the middle, on the first abdominal seg- 

 ment above, a broader one, irregular behind and slightly incised in the 

 middle there, on the second above and below — the under line trilobate 

 — and the apices of the other segments, yellow. Legs bright fulvous 

 red, the coxse and trochanters black. Wings almost hyaline, the 

 radial and cubital cellules smoky violaceous ; tegulae rufous. <? . 

 Length, 8 mm. 



