178 
appears to be a Tipula so far as can be told from the wing alone. 
From its long prfurca it seems to be most nearly allied to the 
spotted 7. ¢artari of Florissant, but it differs in the length of the 
petiole of the second posterior cell, and in the narrowness of the 
wing. 
Ptychoptera deleta. The figure of this species is excellent, show- , 
ing the species to be certainly nearer to Ptychoptera than to any 
known genus, though the number of posterior cells cannot be 
determined from the imperfection of the specimen. It certainly 
must belong to the Ptychopterini, but shows some peculiarities 
worthy of special notice. Thus in Ptychoptera (at least in the 
American species—and Osten Sacken says that the two European 
species seen by him do not materially differ from it) the first longi- 
tudinal vein appears to end in the costa, and to be connected with 
the uppermost branch of the second by a marginal cross vein, 
while in the fossil it ends in the second longitudinal vein at the 
point where the marginal cross vein would occur did it exist. And 
there is further a costal cross vein uniting the auxiliary vein to the 
costa in the middle of the wing. Novak’s description as well 
as figure attest these points and indicate a peculiar genus. 
OmBONI, in 1886, in a brief account of some Italian fossil 
insects (Atti r. ist. Veneto, (6), iv) describes and figures the follow- 
ing from the miocene of Chiavon. 
Tipula zignot. The figure of this fossil is utterly worthless, gives 
no sort of clew to its relationship, and would seem to show that the 
fossil itself is irrecognizable. Omboni indeed says it would be 
‘¢ difficult, not to say impossible,’’ definitely to refer it, and adds 
that it has no trace of wings, and is probably a Chironomus, a 
Tipula, or a Limnobia. Its size alone quite precludes reference to 
Tipula, and it may well be left to oblivion. 
Foerster, in an elaborate account of the fossil insects found in 
the middle oligocene of Brunstatt (40h. Specialk. Elsass-Lothr., 
ili, 189t) mentions, without naming, the following two species of 
Tipulidz. 
Tipula sp. 1. This species evidently belongs to our new genus 
Tipulidea, the length of the przfurca just equaling, or certainly 
not surpassing, the greatest breadth of the first basal cell. It dif- 
fers, however, from any of the American species, but seems most 
nearly allied to Z. picéa. 
Tipula sp. 2. This, too, belongs to Tipulidea, and resembles the 
