200 ©. R. Osten Sacken: 
origin of the second vein; it covers the central crossveins, but does 
not reach beyond the fifth vein; the extreme proximal end of the 
two basal cells and their immediate environment, are likewise brown. 
The venation is like that ofthe N. American @. tristissima (Monogr. 
ete. IV, Tab. 2, fig. 5), only the praefurca is shorter and the mar- 
ginal crossvein a little beyond the origin of the third vein. Length 
about 7 mm. 
Hab. Amazon River (Bates); male and female in the Museum 
at Oxford. 
Gnophomyia caloptera n. sp- @. Head dark-brown; an- 
tennae brown, basal joints pale. Thorax reddish- yellow, with three 
black dorsal stripes; the intermediate one is very short, in the shape 
of an oblong black spot; the lateral ones reach backwards beyond 
the suture; halteres with brown knobs. Abdomen Jdark-brown above; 
ovipositor and the segment preceding it, reddish yellow; venter brown, 
posterior margins of the segments reddish. Wings brown, with two 
subhyaline erossbands, which, in front and behind, do not reach the 
margins of the wing; one runs along the central crossveins, the other 
across the submarginal and posterior cells; there are some other 
subhyaline spots nearer to the root of the wings; venation like Monogr. 
etc. IV, Tab. 2, f. 5. Legs (broken). Length about 7 mm. 
Hab. A single female in the Berlin Museum from Brazil (with 
a query; collected by Schneider). 
Gono'myia. 
(@onomyia Megerle, apud Meig. Syst. Beschr. I, p. 146, 1818; 
OÖ. Sacken, Monogr. etc. IV, p. 177—1791). 
(Unnecessarily amended in Goniomyia by O. Sack. 1. c.) 
Taphrosia Rondani, Prodr. Vol. I, 1856. 
Althoush the species of this genus hitherto discovered in Europe 
and North America may be arranged in several tolerably well-defined 
groups, these groups have characters in common which justify their 
being united in the same genus. This course is strengthened by the 
consideration that in all probability intermediate forms will be dis- 
covered which will obliterate the now recognizable differences bet- 
ween these group. The last of these groups (@. lateralis Macq., 
scutellata and cincta) seems to torm the passage between Gono- 
myiae and the Gnophomsiae of the second group (compare above). 
ı) On page 177, line 13 from bottom, strike out the passage, be- 
ginning with the words: „The majority ete.“, down to: „among the 
Eriopterina‘‘, at the bottom of the page. 
