CHIRONOMUS. 181 



127. persidens, n. Mas, niger, ihorace sordide testaceo vittis tri- 

 biis latis nigris, alls sublimpidis, venis albidis apud costani testaceis, pe- 

 dibus fiiscis. Long. 2 ; alar. 3 lin. 



Male. Black. Anteniife with black plumes. Thorax dingy testaceous, 

 with three broad black dorsal stripes. TFuigs nearly limpid, slightly 

 clouded with black at the base ; costal, radial, and cubital veins testaceous, 

 the rest whitish. Halteres white. Abdomen pubescent. Legs brown, 

 slender. 



Eare. (E.) 



128. expalpans, n. Mas, albidus, thorace vittis tribus nigris, alis 

 suhcinereis piibescentibus, venis testaceis, halteribus albidis, abdomine 

 fusco segmentorum marginihus posticis albidis, pedibus testaceis, feinori- 



bus tibiis tarsisque apice nigricantibus. Long. 2^ ; alar. Si- lin. 



Male. Whitish. Palpi and antennae black, the latter with brown 

 plumes. Thorax with three black stripes. Wings slightly greyish, pu- 

 bescent ; veins testaceous. Halteres whitish. Abdomen brown above, 

 with a whitish band on the hind border of each segment. Legs testaceous, 

 minutely pubescent, moderately long ; tarsi towards the tips, and tips 

 of the f'einora and of the tibiK, blackish. 



Not rare. (E.) 



129. obditus, n. Mas et Teem, testaceiis, validus, thorace vittis 

 tribus vix divisis nigris, alis sublimpidis, venis apud discum. fuscis, halte- 

 ribus albidis, abdomine fusco, pedibus fernagineis, tibiis anticis tarsisque 

 fuscis. Long. 2-3 ; alar. 4-5 lin. 



Testaceous, stout. Thorax with three black, almost confluent, stripes. ^le- 

 tathorax and pectus mostly black. Wings nearly limpid ; costal, radial, 

 and cubital veins, and discal transverse veinlet brown, the other veins paler. 

 Halteres whitish. Abdomen brown, shining, pul^escent. Legs ferru- 

 ginous, long, slender ; tarsi and fore tibiae dark brown. Male. Anten- 

 nae with black plumes. 



Not common. (E.) 



130. olivaceus, Meig. Zw. i. 29. 18 (1818); Mcq.; Streg.; Zett. 

 Mas et Teem, fulvo-viridis, thorace vittis tribus nigris, alis subcinereis, 

 venis halteribusque albidis, ill is apud costam fuscis, abdomine fuscescoite, 

 pedibus fulvis, tibiis anticis tarsisque fuscis. Long. 2|; alar. 5 lin. 



Jlfale and Fern. Dull tawny green. Thorax with three black stripes. 

 Pectus and metathorax black. Wings slightly grey ; costal, radial, and 

 cubital veins brown, the rest whitish. Halteres whitish. Abdomen 

 brownish. Legs dull tawny; tarsi and fore tibiae brown. 



Not common. In tlie British Museum. (E.) 



131. rubicundus? Meig. Zw. i. 35. 33 (1818). JVm. pallide 

 testaccus, thorace vittis tribus cinereis, alis albo-limpidis, venis halteri- 

 busque albis, illis apud costam testaceis, abdomine rufescente, fcmoribus 

 tibiis et tarsis apice fuscescentibus. Long. 1 ; alar. 2^ lin. 



Fern. Pale testaceous. Thorax with three grey stripes. Metathorax 



