234 CHIRONOMJDJE. 



Thorax deep black, shining. Wings somewhat whitish ; veins pale, 

 brownish towards the costa. Halteres white. Abdomen black, slightly 

 shining ; first, second, and third segments and tip white. Legs white; 

 tips of the femora, of the tibiae, and of the tarsi, black. 

 (E.?) 



68. valvatus, Winn. ! Linn. Ent. vi. 72. 66. pi. 8. f. 66 (1852). 

 Mas, ater, nitidus, capite contracto semigloboso, alis limpidis, venis fuscis 

 apud costam validis, forcipibus robustis, tarsorum articulis primo, se- 

 cundo et tertio albis apice nigris. Long. 1 ; alar. 2 lin. 



Male. Deep black, shining. Head almost semiglobose, more contracted 

 than in any other species. Wings limpid ; veins brown, stout towards 

 the costa. Forceps robust ; the blades pointed, broad at the base. 

 First, second, and third joints of the tarsi white, with black tips. 



(E.?) 



69. gracilipes, Winn.! Linn. Ent. vi. 72. 67. pi. 8. f. 67 (1852). 

 Mas, niger, antennis nigro-fuscis, plumis apice albidis, thorace nitido 

 pube lenui flavida vestito, alis venisque albidis, halteribus nigris, tarsis 

 albis articulis apice nigris, fernoribus anterioribus castaneo-fuscis apice 

 flavo-cinctis, tibiis anterioribus nigro-fuscis, femoribus tibiisque posticis 

 nigris. Long. 1|; alar. 2| lin. 



Male. Black. Antenna and their plumes blackish-brown, the latter 

 with glistening-white tips. Thorax so thinly covered with short yellow- 

 ish down as not to dimmish its shining. Wings whitish ; veins whitish. 

 Halteres black. Tarsi white ; their joints with black tips. Anterior 

 femora chestnut-brown, with a slender yellow band at their tips ; ante- 

 rior tibiae blackish-brown. Hind femora and hind tibiae black. 

 (E.?) 



70. rubiginosus, Winn.! Linn. Ent. vi. 72. 68. pi. 8. f. 68 (1852). 

 Fcem. castaneo-fuscus, facie, pectore et coxis nigricantibus, antennis ob- 

 scure fuscis basi flavido- fuscis, alis subfuscescentibus, venis obscuris 

 apud costam adhuc obscurioribus, halteribus albis, capitulis apice ni- 

 gris, abdomine nigro-fusco nitido, venire flavo apice nigro-fusco, pedibus 

 fusco-flavis, femoribus tibiisque apice nigris, tibiis posticis fere totis 

 nigro-fuscis. Long, li; alar. 2| lin. 



Fem. Chestnut-brown. Face, pectus, and coxae blackish. Antennsc 

 dark brown, yellowish-brown at the base; first joint longer by half 

 than the second, almost cylindrical ; second and six following joints 

 oval ; ninth and fourth following long, elliptical. Thorax with an 

 almost reddish glistening. Wings brownish ; veins, especially those 

 towards the costa, darker than the wings. Halteres white ; tips of the 

 knobs black. Abdomen blackish -brotcn, shining; underside, excepting 

 the two apical segments, yellow. Legs brownish-yellow ; tips of the fe- 

 mora and of the tibiae black ; hind tibia) almost wholly blackish-brown. 



(E.?) 



71. bicolor, Panz. Fn. Germ. ciii. 13 ; Meig. Zw. i. 77. 22 (1818) ; 



