C. iiip'mtiis, Wlk, 



182 AN A ceo UNT OF BRITISH FIIES. 



^ . , ,,,,, I Black, stout. Legs lontr ; posterior tibios wLitish- 



C. znscendens, Ulk | ^,^^j. ^^ ^^^^ ^^^ ^^ ^^^^^ Length, 2h lin. 



f Black. Thorax reddish on the sides, and with 



I three slender red stripes. Abdomen with a 

 C. venosits, Mg. ... ... -J tawny band on posterior edge of each segment, 



I and covered with white down. Legs testaceous. 



I Length, 3 lin. 



( Pale testaceous. Thorax with three gray stripes. 

 C. 7-ttbuiindas, 'Slg. ... ...^ Abdomen reddish-brown. Legs testaceous, tips 



( of joints dark. Length, i lin. 



„ . , ,,„, \ Pale green. Thorax with three luteous stripes. 



C. mimtsaclHs, Wlk. ... -^ ^egs as in rubiamdtis ( ? ). 



Black. Legs testaceous. Smaller than vcuosus. 

 Length, i lin. { ? ). 

 I Hoary. Thorax with three blackish stripes. 

 C". nexilis, Wlk. ... ... -j Abdomen piceous. Legs long and slender, 



f testaceous, joints dark. Length, 2J lin. ( S )■ 



. .J . \ Testaceous, green. Thorax with three brown 



C. tnserjiens, Wik j stripes. Legs as above. Length, 2 to aHin. 



, .. . ,, ^ Black. Legs pale brown, joints dark ; fore meta- 



L. pMeins, i\lg -^ tarsi whitish e.Kcept at the tips. Length, 2 hn. 



GENU.S. — Orthocladius, V. d. Wulp. 



Wings naked ; cubital vein straight, simple, bent upwards a little, 

 reaching to the end of the costal ; under prong of the postical fork 

 straight or bending slightly. Tarsi hairy, the joints darkened ; first 

 joint of the anterior tarsi considerably shorter than the tibiae. 

 $ genitalia slender. 



O. dolens, ^Vlk. 



"(^ black. Abdomen long, very hairy; antennas with black 

 plumes. Wings whitish ; costal, cubital and radial veins testaceous, 

 the rest whitish ; distal transverse veinlet dark brown. Halteres 

 brown. Legs brown, long, slender, slightly hairy ; fore tibiae and 

 fore tarsi very hairy. Length, 4 lin." Described by Walker. 



O. stercorarms, Dg. = C. chiopterus, Mg. 



Black. Abdomen pubescent. Legs piceous, minutely pubescent. 

 Wings pale in $^ darker in the ?; the body is also shiny in the 

 latter. Antennre black. The larvae which live in dung are described 

 on p. 173. 



There are a large number of species of this genus named in 

 Verrall's list, but as they are all given in italics, they are only 

 described here briefly. 



( Black, very stout and hairy. Wings dark at base. 



0. mccrens, Wlk ■! Legs ferruginous and very hairy. Length, 4 lin. 



( (c?). 



