CHIRONOMUS. 181 



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

 bus latis nigris, alis sublimpidis, venis albidis apud costam testaceis, pe- 

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



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

 with three broad black dorsal stripes. Wings 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 

 subcinereis pubescentibus, venis testaceis, halteribus albidis, abdomine 

 fusco segmentorum marginibus posticis albidis, pedibus testaceis, femori- 

 bus tibiis tarsisque apice nigricantibus. Long. 2 \ ; alar. 3^ 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 femora and of the tibiae, blackish. 



Not rare. (E.) 



129. obditus, n. Mas et Fcem. testaceus, validus, thorace vitlis 

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

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

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



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

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

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

 Halteres whitish. Abdomen brown, shining, pubescent. 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.; Stasg.; Zett. 

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

 venis halteribusque albidis, illis apud costam fuscis, abdomine fuscescente, 

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



Male 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 the British Museum. (E.) 



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

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

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

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



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



