FAMILY TIPULID.E THE CRANE FLIES 45 



36. Wing's with Sc short, Sci ending opposite or before origin of Rs; 



a supernumerary crossvein in cell R3. .Limonia: Neolimnobia Alexander 

 Wings with Sc long-, ending about opposite fork of Rs; a super- 

 numerary crossvein in cell 1st A, connecting the Anal veins. 



Limonia: Discobola Osten Sacken 



37. Mouthparts, and especially the labial palpi, lengthened, the rostrum 



much longer than remainder of head, and usually about as long as 



the combined head and thorax Limonia: Geranomyia Haliday 



Mouthparts, with the labial palpi, not notably lengthened, shorter 

 than remainder of head 38 



38. Antenuje of male more or less branched (bipectinate, unipectinate or 



subpectinate), of female simply serrate, sometimes very weakly so. 



Limonia: Rhipidia Meigen 

 Antennge simple in both sexes 39 



39. Wings of male with the prearcular region greatly developed, of 



female less markedly so; wing-apex very obtuse; Sc: ending ap- 

 proximately opposite origin of Rs; tropical. 



Limonia: Peripheroptera Schiner 

 Wings of both sexes with prearcular cells small and inconspicuous; 

 wing-tip not so obtusely rounded (except in some Limonia, s.s., 

 where Sc is elongate, ending beyond midlength of Rs) 40 



40. Wings with Sc short, Sc, ending opposite or before origin of Rs. 



Limonia: Dicranomyia Stephens 

 Wings with Sc long, Sc, ending beyond midlength of Rs (29). 



Limonia: Limonia Meigen 



PEDICIINI: SUBTRIBES, GENERA, SUBGENERA 



41. Wings with numerous macrotrichia on membrane (Ularia) . .Ula Haliday 

 Wings glabrous 42 



42. Rostrum produced into a beak that is subequal in length to remainder 



of head; western Ornithodes Coquilletl 



Rostrum only inconspicuously developed 43 



43. Antennae with usually 16 segments; size large, wing usually over 



10 mm. (P'edicia) 44 



Antennse with usually 13 or 15 segments; size small, wing usually 

 under 8 mm 45 



44. Size very large (wing, 20 mm. or more); wings with a dark pattern 



that is arranged as a triangle, including broad costal and cubital 

 seams that are connected across the very oblique cord; maxillary 



palpus with terminal segment elongate Pedicia: Pedicia Latreille 



Size smaller (wing, under 18 mm.); wings without a dark pattern 

 arranged as a triangle, as above described; cord of wing trans- 

 verse or nearly so (30); maxillary palpus with terminal segment 

 short Pedicia: Tricyphona Zetterstedt 



45. Wings with four supernumerary crossveins, located in cells R,, R3, R4 



and M; western Polyangaeus Doane 



Wings with at most a single supernumerary crossvein, this in cell 

 Ri, basad of vein R2 (Dicranota) 46 



46. A supernumerary crossvein in cell R, about opposite end of vein Sd. 47 

 No supernumerary crossveins in cells of wing- 49 



