234 CHIRONOMID^. 



Thorax deep hlach, sJuning. Wings somewhat vvliitisli ; veins pale, 

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

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

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



(E.?) 



68. valvatus, Winn. ! Linn. Ent. vi. 72. 66. pi. 8. f. 66 0852). 

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

 apud costam validis, forcipibus robiistis, tarsonim articulis primo, se- 

 cnndo et tertio albis apice nigris. Long. 1 ; alar. 2 liu. 



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

 than in any other species. Wings lim})id ; 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-fuseis, plumis apice albidis, thorace nitido 

 piibe tenui fiavida vestito, alis venisque albidis, halteribus nigris, tarsis 

 albis articulis apice nigris, fcmoribus anterioribus castaneo-fuscis apice 

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

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



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

 with glistening-white tips. Thorax so thinly covered toith short yelloxo- 

 ish down as not to diminish 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 tibife blackish-brown. Hind femora and hind tibia; black. 



(E.?) 



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

 Foem. casianeo-fnsciis, facie, j^ectore 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, ■centre jiavo ajnce nigro-fusco, pedibus 

 fusco-tiavis, fcmoribus tibiisque apice nigris, tibiis posticis fere totis 

 nigro-fuscis. Long. 1^; alar. 2| lin. 



Tem. Chestnut-brown. Face, pectus, and coxa) blackish. Antennae 

 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 -brown, shining ; underside, excepting 

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

 mora and of the tibia? black ; hind tibia; almost whollv blackish-brown. 



(E.?) 



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



