CH1RONOMUS. 185 



Legs dull testaceous, long, slender ; tips of the tibice and of the joints of 

 the tarsi black. 

 Eare. (E.) 



148. offectus, u. Mas, niger, thorace cano vittis tribus fere con- 

 junctis nigris, alis subcinereis, venis albido-testaceis, abdomine nigro-piceo, 

 pedibusfuscis. Long. 2-2^; alar. 3f 4 lin. 



Male. Black, slender. Antennae with black plumes. Thorax hoary, 

 with three black, almost confluent, stripes. Wings slightly greyish ; veins 

 whitish-testaceous. Abdomen piceous-black. Legs brown, long, slender. 



Not common. (E.) 



149. sordidellus? Zett. I. L. 814. 26 (1840). Mas et Foem. 

 testaceus, thorace vittis tribus nigris, alis subcinereis, venis albidis apud 

 costam testaceis, venula transversa fusca, halteribus albis, abdomine fusco, 

 pedibus testaceis, tibiis et tarsorum articulis apice nigricantibus. Long. 

 2-3 ; alar. 4-5 lin. 



Testaceous. Thorax with three black stripes. Metathorax and disc 

 of the pectus black. Wings very slightly greyish; costal, radial, and 

 cubital veins testaceous, the rest whitish ; discal transverse veinlet brown. 

 Halteres white. Abdomen brown. Legs dull testaceous, long, slender ; 

 tips of the tibiae and of the tarsi blackish. Male. Antennae with black- 

 ish plumes. 



Not common. (E.) 



150. frigidus? Zett. I. L. 812. 14 (1840); Staeg.? Mas, niger, 

 thorace testaceo vittis tribus latissimis nigris, alis limpidis, venis halte- 

 ribusque albidis, pedibus fuscis. Long. 1 ; alar. 2 lin. 



Male. Black. Antennae with blackish plumes. Thorax above tes- 

 taceous, with three very broad black stripes. Wings limpid ; veins and 

 halteres whitish. Legs brown. 



Eare. (E.) 



151. inserpens, n. Mas et Foem. testaceo-viridis, thorace vittis 

 tribus fuscis, alis albo-limpidis, venis albis apud costam testaceis, hal- 

 teribus albidis, pedibus testaceis, femoribus tibiisque apice tarsisque 

 fuscis. Long. 2-2 1- ; alar. 3-4 lin. 



Testaceous-green. Thorax with three brown stripes. Wings limpid- 

 white ; costal, radial, and cubital veins testaceous, the rest white. Hal- 

 teres whitish. Legs testaceous ; tarsi and tips of the femora and of 

 the tibiae brown. Male. Antennae with brown plumes. Abdomen brown 

 towards the tip. 



Not rare. (E.) 



152. notatus? Meig. Zw. i. 25. 11 (1818). Foem. testaceus, thorace 

 vittis tribus nigris, alis subcinereis, venis halteribusque albidis, illis apud 

 costam abdomineque necnon tibiis apice tarsisque fuscis. Long. l^; alar. 

 2 1 lin. 



Fern. Testaceous. Thorax with three black stripes ; metathorax black. 

 Wings very slightly greyish ; costal, radial, and cubital veins brown, the 

 VOL. iv. 2 B 



