282 TIPULID^E. 



c c. Fork of the first externo-medial vein without a petiole between 

 it and the discal areolet. Meig. Zw. i. 131. Div. H. pi. 6. f. 4. 

 LimnopJiila p., Mcq. Species 19. 

 b I. First externo-medial vein not forked. 



c. Radial vein forked. Meig. Zw. i. 132. Div. K., L. pi. 5. f. 4, 6. 



Limnophila p., Mcq. Species 20-22. 

 c c. Radial vein not forked. 



d. Veinlet between the subanal and the third externo-medial in 

 a line with the inner side of the discal areolet, or nearer to 

 the base of the wing. 



e. Subcostal vein ending where it joins the radial. Meig. 

 Zw. i. Div. P. pi. 4. f. 18. Limnobia p., Mcq. Species 

 23-26. 



e e. Subcostal vein prolonged beyond the veinlet which joins 

 it with the radial. Meig. Zw. i. 137. Div. O. pi. 4. f. 13. 

 Limnobia p., Mcq. Glochina p., Meig. Species 27-31. 

 d d. Yeiiilet between the subanal and the third externo-medial 

 very nearly opposite the inner end of the discal areolet. 

 Meig. Zw. i. 133. Div. N. pi. 6. f. 5. Limnobia p., Mcq. 

 GlocJdna p., Meig. Species 32-42. 



d d d. Veinlet between the subanal and the third externo-medial 

 nearly opposite the middle of the discal areolet. 

 e. Subcostal vein ending where it joins the radial. Meig. 



Zw. i. 133. Div. M. pi. 4. f. 19. 

 e e. Subcostal vein prolonged beyond the veinlet which joins 



it to the radial. Meig. Zw. i. 147. Div. S. pi. 4. f. 17. 

 e e e. Subcostal vein not joining the radial. Meig. Zw. i. 



132. Div. L. pi. 5. f. 4. 



d d d d. Veinlet between the subanal and the third externo-me- 

 dial opposite one-third of the length of the discal areolet. 

 e. A veinlet between the radial vein and the costa. Meig. 



Zw. i. 146. Div. R. pi. 6. f. 7. Species 43, 44. 

 e e. No veinlet between the radial vein and the costa. Species 



45. 

 'a a. No discal areolet. 



b. Third externo-medial vein forked. 



c. Radial vein joined by two veinlets to the subcostal. Spe- 

 cies 46. 

 c c. Radial vein joined by one veinlet to the subcostal. 



d. Cubital vein forked. Meig. Zw. i. 148. Div. U. pi. 5. f. 8. 



Tricypkona, Zett. Species 47. 

 d d. Cubital vein not forked. Meig. Zw. vi. 279. Div. W. pi. 



65. f. 4. Species 48, 49. 

 b b. Third externo-medial vein not forked. 



c. Axillary vein curved abruptly to the hind border. Species 50. 

 c c. Axillary vein not curved abruptly to the hind border. Species 

 51-53. ' 



