CHIRONOMUS. 177 



cent, tcith a wJiitish hand on the hind border of each segment. Legs dark 

 testaceous ; tips of the femora, of the tihice, and of the joints of the tarsi, 

 blackish. 



Rare. (E.) 



106. marcidus, n. Mas, niger, alis limpidis, venis albidis apiul 

 costam testaceis, halteribus albis, pedibus testaceis. Long. 2 ; alar. 3 lin. 



Male. Black. Antennse with black plumes. Wings limpid ; costal, 

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

 white. Abdomen very pubescent. Legs slender, j^le dull testaceous. 



Eare. (E.) 



107. obvertens, n. Mas et Fcem. viridis, thorace vittis tribus ru- 

 fescentibus, alls albo-limpidis, venis halteribusque albis, illis apud costam 

 testaceis, venula transversa fuscescente, pedibus testaceis, femoribus 

 tibiis et tarsorum articulis apice nigris. Long. 2J-3 ; alar. 5 lin. 



Male and Fem. Green. Thorax with three pale reddish stripes. 

 Wings limjnd-white ; discal transverse veinlet brownish ; costal, radial, 

 and cubital veins pale testaceous, the rest white. Halteres white. 

 Legs testaceous, long, slender ; tips of the femora, of the tibia3, and 

 of the joints of the tarsi, black. 



Not common. (E.) 



108. convestitus, n. Mas, niger, thorace ferrugineo vittis tribus 

 nigris, alis cinereis, venis albidis a/;«^ costam fuscis, pedibus femigineis. 

 Long. 2^ ; alar. 4 lin. 



Male. Black. Autennse with blackish plumes. Thorax ferruginous, 

 with three black stripes. Pectus hoary. TFings grey ; costal, radial, 

 and cidjital veins brown, the rest whitish. Halteres white. Abdomen 

 pubescent. Legs ferruginous. 



Rare. (E.) 



109. perreptans, n. Mas, niger, thorace vittis tribus vi)-escentibus, 

 alis sublimpidis, venis albis apud costam nigris, halteribus albidis, ab- 

 domine viridi suturis nigris, pedibus viridibus, femoribus tibiisque apice 

 tarsisque nigris. Long. 3 ; alar. .5 lin. 



Male. Black. Antenna; with black plumes. Thorax vnth three 

 greenish stripes. Wings nearly limpid ; costal, radial, and cubital veins, 

 and discal transverse veinlet black, the rest white. Halteres whitish. 

 Abdomen dingy green ; sutures black. Legs dingy green, slender ; 

 tarsi and tips of the femora and of the tibia) black. 



Not common. (E.) 



110. hebescens, n. Fcem. testaceo-viridis, subcanescens, thorace 

 vittis tribus cinereis, alis albo-limpidis, venis halteribusque albidis, illis 

 apud costam testaceis, venula transversa fusca, abdomine pedibusque 

 viridibus, tarsorum articulis apice fuscis. Long. 3^; alar. G lin. 



Fem. Testaceous-green, with a slight hoary tinge. Thorax with three 

 grey stripes. Metathorax mostly grey. Wings limpid-white ; costal, 

 radial, and cubital veins pale testaceous, the rest whitish ; discal trans- 



VOL. IV. 2 A 



