DIPTERA. 
647 
B. Third joitit of antemico with a small or scarcely produced tooth* 
1. Eyes hairy in S, tomentose in $ . . . Agblanius, g. n. 
2. Eyes naked, or nearly naked, in both sexes. 
Tabanus (Linn.). 
II. Fifth and sixth longitudinal veins united before the margin. 
Bellardia, g. n. 
Tahanus unicolor (Macq.)= T. lateritius, Rond. I c. p. 80, the former name 
being preoccupied by Meigen. 
Tangonia (Latr.). Walker has divided the genus Pangonia, after separa- 
tion of (Macq.), into fourteen subgenera, which Rondanl regards 
as insufficiently characterized Q. c. p. 84). He proposes the following division 
of the genus : — 
I. Highth and ninth longitudinal veins united before the margin of the 
wing SciONE (Walk.) 
(type P. mcompleia^ Macq.). 
II. Eighth and ninth longitudinal veins separate to margin. 
A. Fifth and sixth longit. veins united before margin. 
Pangonia (Lkt.). 
B. Fifth and si:ith longit. veins separate to margin. 
DlATOMINEtmA, g. n. 
Pangonia may be subdivided into Pangonia, pf., with the eyes naked, or 
nearly naked : sp. P. fuscipennis, atrieornis (Wied), prasiniventrisf 
(Macq.) ; and Pre])hopsis (Rond. 1. c. p. 85), with the eyes hairy or pilose : 
sp. P. margaritifcra (Wied), longirostris, fenestrata, &c. (Macq.). 
Nev) genera : — 
Diatomineura, g. n., Rondani, /. c. p. 85 : see table above. Subgenera : P>ia- 
tomincura (pr.), sp. P. dcpressa, alhicostata, &c. (Macq.) ; and Corizoneura 
(Rond.), sp. appcndiculata, dives, &c. (Macq.). 
Agelanius, g. ft., Rondani, 1. c. p. 79 : see table above. Sp. A. meridianuSf 
Rond. 1. c. from Valdivia, and A. pliilippi, Rond. p. 80, from St. dago. 
Bellardia, g. n., Rondani, p. 79, pi. 5. figs. 12 & 13 (wing and antenna) : seft 
table above. Sp. Tah. alhonotatus (Bellardi), maculipennis, clausus, and lim^ 
hatinervis (Macq.). 
Bsenhechia, g. n., Rondani, p. 83= Silvius (Meig.) ex parte. Fifth and 
sixth longitudinal veins convergent and united before the margin of the wiftg. 
Types, Silv. vulpes and S. csenhechii, the latter name changed by Rondani to 
E. pangonma. 
Veprius, g. n., Rondani, p. 83. Allied to Silvius, but with the eyes hairy. 
Sp. V, preshitcr, sp. n., Rond. p. 84, from St. Jagb. 
Mycteromyia, g. n., Philippi, Verb. 2 !ool.-bot. Glesellsch. in Wien, xv. 
p. 712. Allied to Pangonia \ head small, much produced in front j eyes 
naked; palpi biarticulate, second joint elongate, compressed. Type Pan- 
gonia conica (Bigot). N. sp. M. fusca, Phil. p. 712; M. brevirostris and 
murind, Phil. p. 713, from Chili. 
TrichopalpuS) g. n., Philippi, 1. c. p. 724. Allied to Chrysops] anterinre 
short, joints gradually thickened, nearly equal in length, third globose ; palpi 
perfect, biarticulate, very hairy ; wings elongate, marginal cell distinct, two 
submarginals, five posterior cells, anal cell open. Sp. 2\ ohscaruSf ftdvus, 
