THE CHIRONOMID.E. 



i8' 



O. trrihcs, Wlk. 



O. variabilis, Staeg 



O, intriidens, Wlk. ... 

 0. peiuiilstis, Wlk. . . . 



O. excerpt us, Wlk. ... 



O. nactiis, Wlk. 

 0. ohlidens, Wlk. 



0. effitsus,\^\\. 



O. incomptus, Wlk. ... 



0, persidcnSy'^Vvi. ... 



O. ohditus, Wlk, 



O. olivaceiis, Wlk. ... 



0, testacetts,'is].3.cc[. ... 



0. exspatiens, Wlk. ... 



0. per tenuis, Wlk. ... 



0. barbicornis, F. = C. 

 rus, Mg. ... 



X). perinacer,\i\^. ... 



obscii- 



\ BLick. Legs brown, slender. Length, \\ lin. 

 \ (c?). 



L Black. Thorax clingy, testaceous, with three broad, 

 ) almost confluent, black stripes. Abdomen 

 1 brownish-black, not pubescent. Legs brown, 

 ( tarsi black. Length, 2 to 2\ lin. 

 I Black. Thorax tawny, with three black stripes. 

 \ Halteres testaceous. Legs ferruginous ; tarsi 

 ( and fore tibite blackish. Length, 3 to 3^ lin. 

 ( Black, stout. Wings black at base ; halteres 

 \ white. Legs dark brown, stout. Length, I5 to 

 ( 2 lin, ( $ ). 



i Black. Legs black, femora piceous, testaceous at 

 base. First, second and third veins brown. 

 Length, i^ lin. ( $ ). 

 ( Black. Legs blackish, slender. Veins white. 

 I Abdomen long and slender. Length i A to 2 lin. 

 \ Deep black. Legs long and slender. First, second 

 I and third veins brown. Length, 2J lin. ( $ ). 

 ( Black. Abdomen dark brown. First, second and 

 < third veins pale testaceous. Legs hairy, dull 

 ( testaceous. Length, i to i^ lin. 

 (' Black, stout. Thorax tawny above, with three 

 I broad black stripes. Abdomen hairy, grny 

 \ posterior edge to eac!i segment. Veins blackish. 

 I Legs tawny, stout ; tarsi black. Length, zh 

 L lin. (c?). 



f Black. Thorax dingy testaceous, with three 

 I broad black stripes. Wings clouded with black 

 \ at base ; first, second and third veins testa- 

 I ceous. Abdomen pubescent. Legs brown, 

 L slender. Length, 2 lin. ( $ ). 

 f Testaceous, stout ; three black stripes on thorax. 

 I Metathorax and pectus black. Abdomen 

 -[ brown, shining, pubescent. Legs ferruginous, 

 I slender ; tarsi and fore tibi;.-e dark brown, 

 t Length, 2 to 3 lin. 



{. Dull tawny green. Three black stripes on thorax. 

 1 Pectus and metathorax black. Abdomen brown- 

 \ ish. Legs tawny ; tarsi and fore tibiES brown. 

 ( Length, 2i lin. 

 Testaceous, stout. Thorax striped (3), brown in 

 $ , pale tawny in ? . Metathorax brown in S , 

 tawny in ? . Abdomen brown, hairy, testaceous 

 at tip in S , all testaceous in ? . Length, i.} to 

 ih lin. 

 (Testaceous. Thorax with three luteous stripes; 

 J metathorax brown. Brown bands on abdomi- 

 1 nal segment in front. Legs stout, marked with 

 ( brown. Length, i^l lin. ( ? ). 

 Pale testaceous, slender. Thorax slightly pro- 

 duced in front. Legs slender. Length, i lin. 

 (?)■ 

 \ Deep black. W^ngs milky white. Legs black, 

 I femora hairy, stout. Length, li to 2 lin. 

 I Black, slender. Pectus and abdomen beneath 

 ) gray. Legs long and slender ; hind metatarsus 

 i more than two-thirds of length of hind tibia. 

 ( Length, 2 lin. 



13 2 



