140 ENTOMOLOGISK TIDSKRIFT 1888. 



pycium of T. alb ov ^^ a ^ a w ^ tnat °f the californian T.(Holor.) 

 grandis m. (rubiginosa Loew*) and find that they are constructed 

 on the same plan. Holorusia can be maintained as a group of 

 the genus Tipida, but certainly not as a distinct genus. — The 

 lamina terminalis supera of T. albovittata is delineated in fig. 5. 



16. Pachyrrhina antennata Wied., Dipt. exot. p. 28. 



Cape Town-, Caffraria. — The female, which was unknown 

 to Wiedemann has the antennae, thrice shorter than those of the 

 male, and the black colour in the chest-sides is more extended; 

 the ovipositor is long, very straight and acute. A good charac- 

 ter, that escaped Wiedemann, is that the shining black middle 

 band of the thorax is, in both sexes, longitudinally divided by 

 an opaque velvet-black line. The three thoracic bands are also 

 bordered, although less distinctly, by the same opaque black 

 colour; very seldom the opaque middle line is indistinct. P. 

 aurantiaca Macq. is not, as Macquart suspected, the female of 

 antennata. 



17. Pachyrrhina petiolata Macq., Dipt. exot. I, 1, p. 49. 



Cape Town; Caffraria. — As Macquart only knew a female 

 without head, it may be noted here, that the head, including 

 the two basal joints of the antennae, is orange-yellow with a 

 somewhat shining lanceolate brownish occipital spot. The an- 

 tennae of the male reach to the base of the abdomen, those of 

 the female only a little beyond the collare; the joints of the 

 flagellum are black or brown with the slightly incrassated base 

 darker. The chest-sides are variegated with yellow and reddish, 

 the metanotum yellow with a more or less distinct pale reddish 

 brown band at the hind border. The second posterior cell of 

 the wings is in some specimens petiolated, in other sessil. 



18. Pachyrrhina tincta Walk., Dipt. Saund. p. 444. 



Caffraria. — Walker described only the female, I have seen 

 only the male. According to the description the metanotum is 



* 7. rubiginosa Loew must be renamed, in order to avoid confusion with 

 rubiginosa Big., the more so as both are Holorusiae. 



