DIPTERA. 423 
pair. Abdomen brown, with a hoary band on the hind border of each 
segment; under side tawny. Legs testaceous; tips of the femora, of the 
tibie and of the joints of the tarsi brown. Wings limpid; veins brown, 
strongly defined; discal mark distinct. Halteres testaceous. Length of 
the body 3 lines; of the wings 5 lines. 
United States. 
Curronomus vicarius, Mas et Fem. 
Testaceus ; antenne fusca ; thorax fusco quadrivittatus ; pedes pubes- 
centes, tibiis et tarsorum articulis apice fuscis ; ale limpide, venis 
testaceis, litura discali nigra. Mas.—Abdomen supra fuscum, ma- 
eulis lateralibus lanceolatis albidis ; abdomen vitta dorsali fusca. 
Testaceous. Antenne brown. Thorax with four brown bands, the 
outer pair broad and short. Legs pubescent, long, slender; fore meta- 
tarsus a little longer than the fore tibia; tips of the tibia and of the 
joints of the tarsi brown. Wings limpid; veins testaceous; discal mark 
black. Male.—Stripes of the thorax paler than those of the female. 
Abdomen above brown, with two lanceolate whitish spots on each seg- 
ment. Legs more pubescent than those of the female, especially the fore 
tarsi, which are rather stout. Zemale.—Abdomen with a brown dorsal 
stripe. Length of the body 5 lines ; of the wings 8 lines. 
East Indies. 
CHIRONOMUS ALTERNANS, Mas. 
Testaceus ; antenne fusce ; thorax viltis duabus dorsalibus lateribusque 
viridibus ; abdomen viride, pubescens, vitia interrupta fusca dorsali ; 
pedes virides, pubescentes, tibiis et tarsorum articulis apice fusces- 
centibus ; ale limpide, venis testaceis, litwra discali subobscuriore. 
Testaceous. Antenne brown. Thorax green on each side, and with 
two green dorsal stripes. Abdomen green, pubescent, with an inter- 
rupted brown dorsal stripe. Legs green, long, slender, pubescent; tips 
of the tibie and of the joints of the tarsi brownish; fore tibia very much 
longer than the fore metatarsus. Wings limpid ; veins testaceous ; discal 
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