CHLOROPS. 229 



spot, which extends to the antennae. Antenna black. Thorax with 

 three very broad Hack stripes. Scutellum whitish-yellow. Pectus with 

 a black spot on each side. Wings limpid. Halteres white. Abdomen 

 black above, yellow on each side and at the tip. Femora and tibice with 

 brown streaks above. Fore tarsi black. 

 Not rare. (E.) 



9. Cereris, Fal. Oscinid. 5. 3 (1820); Meig.; Mcq.; Zett. 

 scutellatus, Pz. agnata, Hal. (var.) Nigra, capite, antennis basi, pec- 

 tore scutello pedibusque fiavis, alis limpidis, feraoribus posticis supra 

 fuscescentibus, tarsis anticis nigris. Long. 1^-1^ ; alar. 2-2^ lin. 



Black. Head yellow, black behind, and with a large black spot on 

 the vertex. Antennas black, yellow towards the base. Pectus and scu- 

 tellum pale yellow, the former with black spots on each side. Wings 

 limpid. Halteres pale yellow. Legs yellow ; hind tibice brownish above ; 

 fore tarsi and tips of fore tibia black. 



Common. (E. S. I.) 



10. messoria, Fal. Oscinid. 5. 4 (1820); Meig.; Mcq. ; Zett. 

 Nigra, capite apud oculos antice subtusgue, thoracis lateribus halteri- 

 busque pallide flams, alis vix subcinereis, tibiis tarsisque posterioribus 

 basi genubusque fulvis. Long, li ; alar. 2^ lin. 



Mack. Head pale yellow along the eyes, above, in front, and be- 

 neath. AntennaB black, yellow at the base. Thorax with two longi- 

 tudinal furrows ; sides and pectus pale yellow, with black spots. Wings 

 very slightly greyish ; veins black, tawny at the base ; costal vein end- 

 ing in front at about five-sixths of the length of the wing ; radial end- 

 ing before two-thirds of the length ; discal transverse parted by less 

 than its length from the praebrachial transverse, and by four times its 

 length from the border. Halteres white. Posterior tibia3 and tarsi 

 towards the base and knees tawny. 



Common. (E. S. I.) 



11. tarsata, Fal. Oscinid. 5. 5 (1820) ; Meig. ; Zett. Nigra, alis 

 sublimpidis, halteribus albidis, tarsis posterioribus tibiis apice genu- 

 busque fulvis. Long. 1; alar. 2 lin. 



Black. Wings nearly limpid. Halteres whitish. Posterior tarsi 

 except the tips, knees and tips of tibiae tawny. 

 Not common. (E.) 



The following additional species of Chlorops have been re- 

 corded as British : 



1. gracilis, Meig. 7. cingulata, Meig. 



2. brunnicornis, Mcq. 8. circumdata, Meig. 



3. confluens, Meig. 9. lateralis, Hal. 



4. Iseta, Meig. 10. fulvifrons, Hal. 



5. fasciata, Meig. 11. elongata, Meig. 



6. speciosa, Meig. 



