CHIUONOMUS. 165 



radial, and cubital veins pale, the rest whitish. Halteres whitish, with 

 blackish tips. Abdomen blackish-green. Legs testaceous, long, slen- 

 der ; tips of the tibiae black ; fore legs very long, their femora with a 

 broad black band towards the tips. 



Rare. In the British Museum. (E.) 



53. occipiens, n. Mas, fuscus, thorace vittis tribus nigris, alis 

 subcinereis, venis pedibusque testaceis, halteribus albidis. Long. 3^ ; 

 alar. 4^ lin. 



Male. Brown, shining. Antennae with black plumes. Thorax with 

 three black stripes. Wings very slightly greyish ; veins pale testaceous. 

 Halteres whitish. Legs dark testaceous. 



Eare. (E.) 



54. annularius, D. G. Ins. vi. 146. 18 (1783); Latr.; Meig. ; 

 Meg. ; Mcq. ; Zett. ; Gim. Mas et Foem. cinereus, thorace vittis 

 tribus nigricantibus, alis sublimpidis, veuis albidis apud costam nigris, 

 abdomine nigro, segmentorum marginibus posticis canis, pedibus testa- 

 ceis, tibiis et tarsorum articulis apice nigris. Long. 3-|-4 ; alar. 5-6 lin. 



Male and Fern. Grey. Palpi and antenme black. Thorax with three 

 blackish stripes. Wings nearly limpid, slightly ciliated along the hind 

 border; costal, radial, and cubital veins, and discal transverse veinlet 

 black, the rest whitish. Halteres whitish. Abdomen black, pubes- 

 cent, with a hoary band on the hind border of each segment. Legs 

 testaceous ; coxse grey ; tips of the tibiae and of the joints of the tarsi 

 black. Male. Antennae with blackish plumes. 



Generally distributed. (E. S. I.) 



55. obnixus, n. Mas, niger, thorace fulvo vittis tribus nigris, 

 alis albo-limpidis, venis albis, halteribus pedibusque testaceis. Long. 2 ; 

 alar. 3 lin. 



Male. Black. Antennae with blackish plumes. Thorax tawny, with 

 three black stripes. Wings limpid-white; veins white. Halteres and 

 legs testaceous ; tarsi darker. 



Not common. (E.) 



56. brunnipes? Zett. Dipt. Scand. ix. 3518. 35 (1850). Maset 

 Foem. nigro-fuscus, thorace fulvo vittis tribus nigris, alis sublimpidis, 

 venis testaceis, halteribus albis, pedibus ferrugineis. Long. 2^-3 ; alar. 

 4-4i lin. 



Male and Fern. Blackish-brown. Thorax taiony, with three very broad 

 black stripes. Wings nearly limpid ; veins pale testaceous. Halteres 

 white. Abdomen rather long. Legs ferruginous, long, slender. Male. 

 Antennae with blackish plumes. 



Not common. (E.) 



57. pulsus, n. Mas et Foem. obscure viridis, thorace vittis tribus 

 nigris, alis limpidis, venis albis apud costam viridibus, pedibus viridibus, 

 femoribus tibiis tarsisque apice fuscis. Long. 3-3 ; alar. 4-5 lin. 



Male and Fern. Dark green. Thorax with three black stripes. Meta- 



