98 DURHAM DIPTERA. 



XV. 152. 



Correction. — On page 28 insert after the third line from the 



top : 



31a (81b). First antennal joint about as long as the second. 



0.4.b.b. closed. Xylomyia, Rnd. (XV. 152) 

 31b (31a). First antennal joint much longer than the second. 



0.4. b.b. open. Xylophagus, Mg. (XVII. 164) 



152. Xylomyia, Rnd. 



1 (2). Middle of the dorsum yellow spotted. Abdomen 



with broad bands. (898. maculata, F.) 



2 (1). Middle of the dorsum black. Abdomen with narrow 



bands or all black. 



3 (4). Legs, including the coxae, yellow. (S99. varia, Mg.) 



4 (3). Legs yellow, coxae black. (900. marginata, Mg.) 



Family XVI.— TABANID^E. 



The larvae live in damp earth or among damp leaves. 

 Most of the females are blood-suckers, called Breeze Flies and 

 Clegs. 



TABLE OF GENERA AND SPECIES. 



1 (30). Hind tibiae without spurs. Ocelli absent. 



2 (5). Third antennal joint with four rings, not widened at 



the base nor cut out on the upper side (III. 8). 



153. FLematopota, Mg- 



8 (4). Antennae scarcely longer than the head ; third joint 

 yellow at the base in both sexes ; first joint, in the 

 female, twice as thick as the third, and shorter 

 than it. 



901. Hcematopota ftluvialis, L. 

 The Cleg, very common, especially the females. 

 902, crassicornis, is like phivialis, but shorter 

 and blacker; the spots on the abdomen white, 

 not grey, and the first antennal joint thicker. 



