THEMIRA. 211 



nearly twice its length from the praebrachial transverse, and by about 

 its length from the border. Abdomen slightly petiolated, convex, 

 arched, pubescent, curved beneath at the tip ; first segment long, tumid 

 above on the hind border. Legs slender, not bristly, unarmed in both 

 sexes. Metatarsi long. Male. Abdomen subclavate. Jem. Abdomen 

 elongate-oval. 



1. cylindrica, F. E. S. iv. 336. 104 (1792) ; Meig. ; Mcq. ; Zett. 

 nitidula, Fal. putris, Desv. Nigro-aenea, antennis runs, thoracis 

 lateribus antice et postice rufis, alis hyalinis apice obscuris, abdomine 

 seneo-cupreo, pedibus flavo-fuscis. Long. If -2|- ; alar. 2f-2f lin. 



.ZEneous-black. Head black in front ; epistoma red. Antennae red ; 

 arista black, red at the base. Sides of the thorax and scutellum of the 

 metathorax aeneous, shining, the former red in front and beyond. 

 Wings limpid, yellowish at the base, brownish at the tips. Halteres 

 white. Abdomen aeneo-cupreous, shining. Legs yellow ; posterior fe- 

 mora brown in the middle ; hind tibiae brown ; middle tibiae pale brown 

 above ; tarsi brown, the anterior yellowish-brown at the base. Var. /3. 

 Male. Middle tibiae brown. 



Generally distributed. (E. S. I.) 



The following additional species of Nemopoda have been re- 

 corded as British : 



1. stercoraria, Desv. 3. tarsalis, Walk. 



2. nigricornis, Meig. 4. fumipennis, Walk. 



Genus IV. THEMIRA. 



THEMIRA, Desv. E. M. (1830); Mcq. Mmca p., F. ; Schr.; Gmel. 

 Sepsis p., Fal. ; Meig. ; Curt. ; Zett. 



Arista pubescens, basi crassa. Metathoracis scutellum bene determina- 

 lum. Ales immaculate. Abdomen mx petiolatum, depressum. Mas. 

 Abdomen fere lineare, apice plerumque setosum ; segmentum primum 

 longum. Femora et tibia antica subtus dentata et spinosa. Fcem. 

 Abdomen longi-ovatum ; segmenta subaequalia. 

 Body nearly linear. Sixth joint of the antennae pubescent, stout at 

 the base. Scutellum of the metathorax distinct. Wings unspotted ; 

 costal vein ending on the hind border at a short distance from the tip 

 of the wing ; subcostal ending at a little before one-third of the length ; 

 mediastinal ending before half the length ; radial ending beyond five- 

 sixths of the length ; cubital ending at the tip ; prsebrachial diverging 

 from the cubital between the transverse veins, slightly converging to it 

 from the discal transverse to the tip ; discal transverse straight, almost 

 upright, parted by more than twice its length from the prsebrachial 

 transverse, and by nearly its length from the border. Abdomen nearly 



