88 DURHAM DIPTERA. 



XIII. 135. 



62 (61). Antennae very long, with the first two or three joints 



all yellow. (822. flavolineata, Mg.) 



63 (60). Antennae entirely blackish. 



64 (65). Veins clouded with grey, wings short. 



819. Tipula plumbea, F. 

 Harperley, 1 $, 4-6-00, 1 $, 28-6-02 ; Bedburn, 1 $, 

 1 $, 7-7-02. 



65 (64). Veins not clouded with grey, wings normal. 



(820. pruinosa, W.) 



66 (53). The pale spot before the stigma large, like a band or 



lunule, and extending into O. or beyond it. 



67 (70). Abdomen grey. 



68 (69). The joints of the flagellum not incised beneath. 



823. Tipula lunata, L. 

 Harperley, 3 $, 2 ?, 28-6-02. 



69 (68). The joints of the flagellum deeply incised beneath. 



(827. diana, Mg.) 



70 (67). Abdomen yellowish. 



71 (74). Thorax ashy-grey, brown-grey, or black. 



72 (73). The pale spot before the stigma only enters the base 



of O. Dorsum with four distinct dark stripes. 



(834. selene, Mg.) 



73 (72). The pale spot before the stigma extending beyond O. 



Dorsum unstriped, or with only faint traces of 

 stripes. 



835. Tipula fascipennis, Mg. 



Harperley, 2 $, 28-6-02. 



74 (71). Thorax orange-yellow. 



75 (76). Stigma darkish brown. Male genitalia with a tufted 



tongue-like plate hanging out beneath. 

 837. Tipula ochracea, Mg. 

 Bishop Auckland, 5 $, 1 $. The males are very 

 common in June. Barnard Castle, 1 $, 20-6-00. 



