1744 
DIPTERA OF AUSTRALIA, 
206. CuLEx NiGRiTHORAX, Macquavt. 
Culex nigrithorax, Macq., Dipteres Exotiques, 2nd Suppl. 
1847, p. 9. 
“ (J . — Thorace nigro. Abdomine fiasco incisuris alhidis. 
Fedihus rufescentibusF 
Proboscis black. Palpi and antennae brownish. Thoi’ax 
and pleurae rather dull black. Abdomen with the anterior 
border of the segments yellowish-white ; last segment and copu- 
latory armature black ; venter with whiti.sh hairs. Legs rather 
bright tawny ; extremity of the femora brownish ; posterior tarsi 
brownish. Wings a little yellowish, with reddish veins; cells 
normal. Long. lines. 
Tasmania. 
207. Culex crucians, Walker. 
Culex crucimis, Walk., Insecta Saundersiana, Vol. I. Diptera, 
1856, p. 432. 
“9 - — Fusca ; proboscis fulva, apice fusca ; antennce niqrce, 
basi fidvce ; pectus fulvum ; abdomen j asciis albido-testaceis ; coxce 
et femora testacea ; alee subcinerece^ venis fuscis subciliaiis basi 
testaceis ; halteres testacei. 
^ Brown. Proboscis slender, straight, tawny, brown at the 
tip. Antennse black, shorter than the proboscis, tawny at the 
base. Pectus tawny. Abdomen darker than the thorax, with a 
whitish testaceous band in front of each segment. Legs brown ; 
COX 00 and femora testaceous. Wings greyish ; veins brown, 
slightly ciliated, testaceous at the base. Halteres testaceous. 
Length of the body 3J lines ; of the wings 6 lines. 
Van Diemen’s Land.” 
208. Culex sagax, sp.n. 
9 . — Length of antennae 0‘095 inch ... 2 39 millimetre.s. 
Expanse of wings 0'170 x 0’050 ... 4'31 x L27 
Size of body 0 200 x 0-040 . 5-08 x 1-01 
Antennae fuliginous, neaidy the length of the proboscis ; joints 
of the scapus more or less testaceous or ochraceous, with a few 
