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Reference !-
C.O. 885
པ་ ་་་ཅ་ད་
20 PUBLIC RECORD OFFICE, LONDON
ALLY WITHOUT PERMISSION OF THE
BE REPRODUCED PHOTOGRAPHIC-
16
Palpi black, longer than the proboscis, the last two segments nearly equal, with long black hairs on each side and a few on the apex of the ante-penultimate. Antennæ deep brown with dark plume hairs and pale bands, apical segments densely hairy.
Legs deep brown; fore and mid ungues unequal (apparently uniserrate). Wings with the vein scales shorter and broader than in the 9; first fork-cell longer and narrower than the second, its stem about half the length of the cell; stem of the second about two-thirds the length of the cell; posterior cross-vein more than twice its own length distant from the mid, sloping backwards.
Genitalia with a simple clasper, with a distinct flange-like process on one side, foliate plate large and broadly expanded.
Length: 48 mm.
Habitat: Accra.
Time of capture: 19, vi., `08.
Observations: Described from a perfect and ♂ taken in latrines. Quite a distinct 'ulea, which can easily be told by the ornate thorax and marked genitals of the male.
Culex nigrocostalis, nov. sp.
Very like a small (. fatigans or ('. pallidocephala, but the thorax uniformly clothed with dull golden-brown scales, and the outer costal border of the wings very dark.
Head black, clothed with dull grey ragged narrow-curved scales, small dull grey flat lateral scales and black upright forked scales; clypeus deep brown, palpi and proboscis deep black; antennæ deep brown with narrow pale bands.
Thorax deep brown, clothed uniformly with small, hair-like, curved, dull golden- brown scales and deep brown chatæ, dull golden at their base; scutellum paler brown, with scanty dusky hair-like curved scales, dull golden in some lights, and six deep brown border-bristles to the mid lobe.
Abdomen blackish-brown, with narrow basal white bands and golden brown to golden border-bristles.
Legs deep blackish-brown, unbanded, femora pale below, a few pale scales at the apices of the femora and tibiæ; ungues small, equal, and simple.
Wings with dark brown scales, the outer costal border and the first long vein and sub-costal black; first fork-cell longer and narrower than the second posterior, its base nearer the base of the wing, its stem less than one-third the length of the cell; stem of the second fork-cell about two-thirds the length of the cell: posterior cross-vein longer than the mid, sloping backwards, and about two and a half times its own length distant from it.
Length: 3 mm.
Like the 9, but the abdomen more prominently banded. Palpi and proboscis deep brown, the former acuminate and longer than the proboscis by the last and apical portion of the penultimate segment, the last two segments with scanty, long, dark hairs. Ungues of fore and mid legs unequal, uniserrate, hind equal and simple. Wings with short fork-cells, the first slightly narrower and much longer than the second fork-cell, stem of the first about three-fourths the length of the cell. stem of the latter nearly as long as the cell; posterior cross-vein longer than the mid, nearly three times its own length distant from it.
Length: 4 mm.
Habitat: Accra.
Hatched out: 7 and 18, vi., '08 (♂), 7, vii., '08 (9),
Observations: Described from a single perfect 9, hatched from a long siphoned larva, and three d's. This is a small, rather obscure Culex, near ('. fatigans, Wied.. and C. pallidocephala, Theob., but can be told from both by the very dark outer costal border and veins near it. A small fragile species.
Culex chloroventer, nov. sp..
Thorax brown, ornamented with pale ochreous brown, the latter forming a curved band on each side, to some extent passing back to the scutellum. Abdomen unbanded, with basal white lateral spots; venter green in life. Male clasper nearly straight.
Head brown with narrow-curved, dull golden, scales over most of its surface, black, upright forked scales and dull, flat, creamy lateral ones; palpi, proboscis, and antennæ deep brown.
17
Abdomen deep brown, unbanded, with basal white lateral spots, border-bristles dusky at base, pale at apex; venter sea green in life, when dead ochreous with pale basal bands and dusky apical ones.
Legs brown, unbanded; femora pale below at the base; ungues equal and simple. First sub-marginal cell longer and slightly narrower than the second posterior cell, its base nearer the base of the wing, its stem about one-third the length of the cell; stem of the second posterior about two-thirds the length of the cell; posterior cross-vein about its own length distant from the mid; scales on the apex rather dense, broad short ones on the apex of the first long vein.
Length: 35 to 4 mm.
Thorax and abdomen as in the . Palpi longer than the proboscis, acumi- nate, brown; last two segments of nearly equal length, with long blackish hairs.
First sub-marginal cell longer and narrower than the second posterior cell, its base nearer the base of the wing, its stem less than half the length of the cell; stem of the second posterior nearly as long as the cell; posterior cross-vein about twice its own length distant from the mid. Fore and mid ungues unequal, uniserrate, hind equal and simple.
Clasper of genitalia thin, nearly straight; foliate plate flat at the apex. Length: 4 mm.
Habitat: Accra and Obuasi.
Time of capture: 6, 22, vi., '08, and 5, vii., '08.
Observations: Caught in latrines, on wall, common in Accra, and in house at Obuasi.
Very near Culex viridis, Theobald, but differs in the venation, absence of green pleuræ, and in the male genitalia.
Culex tigripes, Grandpre.
Accra, one bred from larva in barrel, and another taken in latrine (8 and - 26, vi., '08).
Culex tigripes, Grandpre; variety fusca, nov. var.
No trace of abdominal banding, but traces of basal lateral pale spots; abdominal hairs fuscous (not pale as in the type). There are two, pale scaled, round, thoracic spots on the dorsum.
Length: 5 mm.
Habitat: Obuasi (15, xi., '07).
Observations: A small dark variety, bred from a larva in a hollow tree.
see no structural difference from the large typical C. tigripes.
Culex pallidothoracis, nov. sp.
I can
Thorax uniformly clothed with pale ochreous scales. Abdomen dark brown in the female with traces of pale basal banding, prominent in the male. Palpi, proboscis, and legs uniformly dark brown.
9. Head black, densely clothed with narrow-curved, pale ochreous, almost creamy scales, flat similar coloured lateral scales, rich golden brown central upright forked scales and black upright ones at the sides; golden chætæ between the eyes, dark ones at the sides; clypeus brown; palpi and proboscis almost black; antennæ brown.
Thorax black, densely and uniformly clothed with narrow-curved, pale ochreous, almost creamy scales, with golden and brown chætæ; scutellum very pale with similar scales and brown border-bristles; metanotum brown; pleuræ very pale.
Abdomen dark brown, some of the apical segments with basal creamy bands; border-bristles brown, golden at their apices; venter with many pale scattered scales; traces of basal lateral pale spots.
Legs uniformly brown; with dull ochreous reflections, paler beneath; ungues equal and simple.
Wings with the fork-cells long; the first longer and narrower than the second posterior, its base nearer the base of the wing, its stem about one-third the length of the cell; stem of the second about half the length of the cell; posterior cross-vein nearly its own length distant from the mid; scales of typical culex form.
Length: 5 to 55 mm.
d. Similar to 9, but the abdominal banding very pronounced. Palpi acuminate, black at the apices, paler basally, hairs dark; antennæ with flaxen brown
1350gr
C