‘THE CRANE-FLIES oF New York — Part [ 889 
the latter family and quite unlike the amphipneustic larvae of the 
Rhyphidae. Until additional data are forthcoming they should be con- 
sidered as being Mycetophilidae. 
Genus Mycetobia Meigen 
1818 Mycetobia Meig. Syst. Beschr., vol. 1, p. 229. 
Johannsen (1909) recognizes six recent species of Mycetobia, and five 
others as fossil in Baltic amber (Eocene). The larvae are found in decaying 
Se Ri Rers3 
A Cue 
Fic. 1382. WING VENATION IN RHYPHIDAE 
A, Venation of typical Rhyphus. B, Venation of Mycetobia 
trees and in fermented sap in the wounds of trees. A single species is 
known from New York State, Mycetobia divergens Walk. The charac- 
teristic venation of the genus is shown in figure 132, B. 
Famity Tipulidae 
The family Tipulidae includes almost all of the local crane-flies. It is 
divided into three subfamilies, two of which are further separable into 
nine tribes — six belonging to the Limnobiinae and three to the Tipulinae. 
The tribes may be separated as follows: 
1. Last segment of the palpi elongate, whiplash-like; nasus usually distinct; antennae usually 
with 13 segments; Sc almost always ending in R; m-cu cross-vein present or obliterated 
by the usually slight fusion of Cu: on M3+;. In the dolichopezine genus Brachypremna 
(p. 928) Sc is very long and ends in the costa, and the fusion of Cu and M3+-, is often 
extensive; but the antennae are 13-segmented, the palpi are elongated, the nasus is 
distinct, and the whole appearance of the fly is decidedly tipuline. (Subfamily 
ST Tseri1 cm) PTAA tL ys SAPO SRP Ie, 07S MEDION Cs Sina cov ohetaahiabern cla sation tl ovate 2 
Last segment of the palpi short; no distinct nasus; antennae usually 14- or 16-segmented; 
Sc usually ending in costa but connected with R by Sc2; m-cu cross-vein obliterated 
by the long fusion of Cu: on Mz+;. In Pedicia (p. 923) the palpi are elongated, but 
all other characters are limnobiine. (Subfamilies Limnobiinae, Cylindrotominae.)....4 
