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TILLLC.O. 885
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apex of metatarsals and first tarsals; hind legs with the apex of the tibiæ, first and second tarsals prominently white, last two hind tarsi all white.
Wings with brown scales, some pale ones at the base of the fourth and fifth near the root of the wings; first fork-cell much smaller than the second, its stem about three times the length of the cell, its base much nearer the apex of the wing, stem of the second fork-cell nearly twice as long as the cell; posterior cross-vein about its own length distant from the mid. Halteres with pale stem and fuscous knob.
Length: 25 mm.
♂ Similar to the female; the densely plumed antenna with ochreous brown plume hairs; the end tarsi of the fore and mid legs are pale ochreous ventrally; fore and mid ungues unequal, simple.
Length: 25 mm.
Habitat: Obuasi.
Time of capture: 7, viii., '07, and 3, x., '07.
Observations: Described from a perfect 9 and ♂. thoracic ornamentation at once separate it.
Uranotania ornatus, nov. sp.
The leg banding and
Thorax clear ochreous yellow in front, rich brown behind; pleuræ pale clear ochreous. Palpi, antennæ, and proboscis brown. Abdomen brown with basal narrow indistinct pale band and pale ochreous venter. Legs uniform brown with ochreous reflections.
d. Head dark clothed with flat dark scales with dull violet reflections and some black chætæ; antennæ plumose, brown, basal segment large and rich brown, plume hairs brown; proboscis and palpi brown, the latter very small; proboscis slightly expanded at the apex.
Thorax ochreous yellow in front with rather long scanty narrow-curved pale yellowish scales and traces of three paler lines on the integument, the medians are only distinct; posterior half of thorax rich brown with black narrow-curved scales and black chætæ, sides of mesothorax and pleuræ pale clear ochreous; the pale area passing around just over the roots of the wings; scutellum paler brown with small flat dusky scales, four chate to central lobe; metanotum brown.
Abdomen narrow, brown, with traces of pale areas at the base of the segments, which, together with the pale posterior border-bristles, gives a basally pale banded appearance, and the scales are also paler at the bases, forming bands; small pale ochreous patches of scales laterally at the base of the segments; venter ochreous with pale ochreous and semi-transparent scales, with a few dusky ones; apex with rather dense golden chætæ.
Legs brown with ochreous reflections, base pale; tibiæ ochreous at the apices; chata brown.
Wings with the veins on the costa, sub-costal and first long vein deep violet, remainder pale brown; scales large and scanty; first fork-cell a little shorter and narrower than the second fork-cell, its base a littlerer the apex of the wing, its stem about twice the length of the cell, stem of the s cond posterior one and a half times the length of the cell; posterior cross-vein nearly twice its own length distant from the mid. Halteres ochreous with fuscous knob.
Length: 2 to 25 mm.
Time of capture: 3, xi., '07. (October and November.) Habitat: Obuasi, caught in bush 5
p.m.
Observations: Described from four d's; the abdominal banding is more distinct in two than the other two. The markedly adorned thorax at once separates the species. Dr. Graham describes the anterior half of the thorax as pale orange, so that probably the colours have faded in death.
Uranotœnia (?) bimaculata, n. sp.
Head black scaled. Thorax bright ferruginous with a large round black spot just in front of the base of each wing. Abdomen deep brown, unbanded. Legs brown, unbanded.
9. Head clothed_with flat black scales with violet reflections, a few ochreous ones at the sides, and dark upright forked scales; eyes black, silvery around the edges; clypeus pale brown; proboscis deep brown, apex testaceous; palpi small,
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brown, with rather long black chætæ; antennæ brown, basal segment pale testaceous with some white scales.
Thorax bright orange brown, with violet tinges in the middle, a large black spot just in front of the base of each wing, from which arise long jet-black chætæ; on the dorsum are indistinct dusky narrow-curved bronzy scales, chætæ black; scutellum much denuded, brown with apparently flat dusky-brown scales; metanotum deep brown in middle, paler at the sides; pleure bright brown with some patches of pale scales.
Abdomen deep brown, unbanded, with dusky border-bristles; venter dull ochreous with some pale scales.
Legs ochreous brown, darker towards the feet; femora paler below, with violet reflections above; a pale spot at the apex of the hind tibiæ.
Wings with brown scales; the first fork-cell about as long as the second, its stem one and a third times its length, its base slightly nearer the apex than that of the latter, not quite as wide; stem of the second fork-cell rather longer than the cell, posterior cross-vein about one and a third of its own length distant from the mid.
Length: 25 mm.
Habitat: Obuasi.
Time of capture: 12, x., '07.
Observations: Described from one caught in the bush at 5 p.m.
The scutellum is almost completely denuded, only two scales can be seen and these are flat, and thus tend to show it is an Uranotaenia; but as they cannot be definitely stated to belong to the scutellum in its denuded state, and as the fork- cells are longer than in Uranotaenia and approach Mimomyia, I put a query against the genus. The species is very marked owing to the bright thorax with two large black spots.
Genus GRAHAMIA, nov. gen.
Head clothed with large flat scales; proboscis short, thick, swollen apically, elbowed just below the enlarged apical area, clothed with very long hairs along its whole length with two very long ones at the base of the labellæ, and two a little shorter; in the male the proboscis is more swollen than in the 9, and there is a denser tuft of hairs before the swollen area; at the apex in both sexes are two hook- like short hairs and a complex structure, shown in figure; palpi of 9 and ♂ very short and thin, almost thread-like, hidden beneath the elongated clypeus. Thorax clothed with narrow-curved scales, and with a median line of broad flat scales in front, similar scales clothe the prothoracic lobes and occur just over them in a patch; these scales are of very marked form, being almost round. Scutellum clothed with short, broad, flat scales; metanotum nude. Wings with scanty scales, moderately long and rather broad. The male antennæ are verticillate, like the Q. The gentalia seems normal, a long clasper to each lobe.
This forms a very distinct genus, which can at once he told by (1) the squamose characters, (2) the quaint proboscis, and (3) the elongated clypeus, which covers a greater part of the palpi. There is a curious complex structure at the apex of the proboscis in both sexes-which I have drawn as far as one can from the actual type specimens. Proper microscopic preparations alone can show the exact structure.
This genus bears certain resemblances to some strange Culicids shown me by Mr. Banks, which he is describing, from the Philippine Islands, and it may be that the quaint proboscis structure is for the same purpose which he will show in the Philippine Island specimens. As the discovery of the function of the curved hairs, etc., is due to him, I am leaving this matter for his description, and it may be that both belong to the same genus, but not having full details I cannot say.
Grahamia trichorostris, nov. sp.
Head metallic, pale pink and silvery; proboscis, etc., brown; thorax deep blackish-brown with a broad median metallic mauve line in front; prothoracic lobes metallic white with mauve and rose reflections; silvery pleural patches; scutellum silvery. Abdomen smoky black with large apical silvery lateral patches. Legs brown, unbanded.
9. Head clothed with flat scales, brown at the base, metallic pink, mauve and silvery white in front, forming a large patch passing between the eyes, flat white scales at the sides; clypeus brown, elongated; palpi brown, short and thin, just