The Crane-Flies of New York — Part II 833 



pharynx a broad semicircular band of chitin whose anterior margin is provided with 

 about a dozen teeth, the intermediate ones more blunt and rounded, the lateral teeth longer 

 and more slender. (The antennae of this species were not distinguishable in the specimens 

 available, but are undoubtedly similar to those of R. flavipes described hereinafter.) Mandible 

 (Plate XXXI, 135) of the generalized linmobiine type, short and stout, terminating in two 

 blunt teeth; ventral cutting edge with about three teeth which are gradually smaller toward 

 base of mandible; a dorsal row of two teeth, of which the basal one is the smaller; base of 

 mandible on outer face (heel) prolonged into an acute flattened blade; a conspicuous tuft 

 of hairs at prosthecal region. ]\Iaxilla consisting of two rather short, stout lobes which 

 are shorter than the mandible, densely provided with short hairs; palpi large, shaped like 

 a half of a short cylinder split lengthwise. 



Pupa.' — Very similar to that of R. flavipes, as described on the following pages. (The 

 writer has only the cast pupal skin of R. mamensis, and it seems to agree very closely with 

 the pupa of R. flavipes except that the lobes of the labial sheaths are longer and more pointed, 

 and the labrum is a little longer to provide for the longer rostrum of the former species.) 



Nepionotype. — Ithaca, New York, April 20, 1917. 

 Neanotype. — Cast pupal skin, May 14, 1917. 



Rhamphidia flavipes Macq. 



1855 Rhamphidia flavipes Macq. Dipt. Exot., 5th supp., p. 17. 



1856 Rhamphidia prominent Walk. Ins. Saunders, vol. 1, Dipt., p. 435. 

 1859 Rhamphidia brevirostris O. S. Proc. Acad. Nat. Sci. Phila., p. 222. 



Rhamphidia flavipes is a common and widely distributed fly thruout 

 the eastern United States and Canada. The species is characteristic 

 of cat-tail swamps and similar situations. It has been reared from leaves 

 of bur reed, Sparganium, brought in by C. H. Kennedy from Ringwood 

 Hollow, near Etna, New York, in September. These larvae were asso- 

 ciated with larvae of Prionocera fuscipennis, likewise a characteristic 

 inhabitant of open swamps. The specimens here described were taken 

 in a small cat-tail swamp near Bool's hillside, Ithaca, New York, in June, 

 1917. Here they were associated with a number of larvae of characteristic 

 swamp-inhabiting crane-flies, such as Ptychoptera rufocincta, Pseudolimno- 

 phila luteipennis, Limnophila macrocera, Pilaria recondita, Liogma nodi- 

 cornis (in moss) , Prionocera fuscipennis, and Tipula tricolor. 



This is unquestionably the larva that was found by Hart and doubtfully 

 referred ])y him to the genus Erioptera (Hart, 1898 [1895]: 197-199, also 

 Malloch, 1915-17 : 237). Later, Mik (1898 : 62) doubted that this belonged 

 to Erioptera because of the long lashes of hairs surrounding the caudal 

 lobes, a character not shown by typical eriopterine larvae. The larvae 

 that Hart found were living among rushes and other vegetation floating 



