308 ©. R. Osten Sacken: 
Zetterstedt had only one specimen, taken in Lapland in August. He 
asks himself: „an proprii generis?“ and this remark apparently gave 
occasion to Mr. Wallengren for the formation of the new genus. 
Whether he ever saw Zetterstedt’s type seems doubtful; but it is 
evident that he had no specimen of his own, because all his data 
are borrowed from Zetterstedt's letterpress. From these meagre 
data it is impossible to guess to what section of the Limnobina 
the genus belongs. Zetterstedt gives the number of antennal joints 
as 19 whith a query; Wallengren has nothing about the antennae. 
The wings have a discal cell, emitting two veins only, the anterior 
one of which is bifurcate, as in Dolichopeza (Meig. Vol. 6, Tab. 65, 
f. 10) quoted by Zetterstedt. The basis of the praefurca is square 
and appendiculate. Is Limnobia bifurcata really a species, or merely 
an aberrant specimen ? 
Epiphragma. 
O. Sacken, Proc. Acad. Nat. Sc. Phil. 1859; Monogr. etc. IV, 
p2 4198; Tab. WE. 628} 
The incrassate third joint of the antennae and the fornicate 
structure of the ventral segment, preceding the forceps, seem to be 
characteristic. 
The South-American F. eircinata O. Sack. has, in the male, 
long, filiform, pubescent antennae, as they sometimes occur in the 
genus Limnophila (compare Monogr. 1. c. p. 197). This genus also 
oceurs in Asia; E. insignis from Sumatra (v. d. Wulp, Tijdschr. 
etc. XXI, 1878, Tab. 12, f. 6) seems to resemble the american E. so- 
latriw, only the first submarginal cell is represented as much shorter 
and the third longitudinal vein is in a line with the praefurca. — 
The larva and pupa of E. pieta have been described by Mr. Beling, 
Verh. Z. B. Ges. 1873. — One european, six american and one 
asiatic species are known. 
Epiphragma delicatula n. sp. & (Berl. Mus.) 
Yellowish red; antennae yellow at base, brownish towards the 
tip; thorax with a grayish triangle in the middle of the mesonotum, 
its sides being yellowish red; halteres pale, knob slightly darker; 
coxae yellowish white, legs pale yellow. Wings subhyaline, with a 
slight yellowish tinge and with ocellate pale brown spots arranged 
almost exactly like those of the european Trochobola annulata 
(comp. Monogr. etc. IV, Tab. 1, f. 4). 
Hab. Colombia, S. America (Moritz); a single male in the Berlin 
Museum, I preserve the name I found in the Museum. 
