CO885-(20-21) — Page 1

CO882 & CO885 Colonial Office Confidential Prints 理藩院機密印刊 All

PUBLIC RECORD OFFICE

Reference :-

C.O. 885

20 PUBLIC RECORD OFFICE, LONDON

ALLY WITHOUT PERMISSION OF THE BE REPRODUCED PHOTOGRAPHIC- COPYRIGHT PHOTOGRAPH--NOT TO

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plume-hairs, paler at their apices. Fork scales dense, dark behind as well as at the sides.

Fore and mid ungues unequal, the larger with a large tooth, the smaller with a small one, hind equal and simple.

Genitalia with a large broad foliate plate.

Length: 5 to 6 mm.

Habitat: Obuasi.

Time of capture: 8, i., '08; 10, xii., '07; 20, vi., '07; 17, vii., '07; 7, viii., '07; 20, ix., '07; 18, 19, x., '07; 13, xi., '07.

Observations: Caught on bush paths. Described from a series of several males and females. It is very marked on account of the pronounced pale scaled thorax. The Q's show some variation in regards to abdominal banding, some showing it much more prominently than others.

Genus: CULICADA, Felt.

(Mosquitoes or Culicidæ, New York State, p. 391b, 6 App., 1904.)

Culicada fuscopalpalis, nov. sp.

Thorax rich brown with narrow-curved golden scales scattered over it; palpi of deep fuscous brown with fuscous and brown hairs. Abdomen brown with basal pale bands; venter ochreous with narrow dark apical bands; legs brown, unbanded, with a pale, apical, tibial spot to the hind legs.

d. Head brown with rather large, dull, creamy curved scales, dusky upright forked scales, flat dull creamy ones at the sides, with more pointed ones around the eye borders; chætæ brown; eyes golden and coppery; palpi longer than the proboscis by the last segment and apex of the penultimate, deep fuscous brown, the last two segments slightly swollen, the apical narrowing to the tip, not quite as long as the penultimate, with long black hairs, particularly long and dense on one side of the base of the penultimate and on the other side at the apex, and long hairs at the apex of the ante-penultimate; antennæ with pale bands and very dense fuscous plume-hairs; proboscis deep-brown.

Thorax deep rich brown with scattered narrow-curved pale golden scales, brown and golden brown chata; scutellum pale brown with narrow-curved pale scales; pleuræ deep brown with flat, loosely applied, creamy and dull white scales; metanotum brown. Abdomen deep brown with black scales and basal bands of creamy scales, long golden brown lateral hairs; venter pale ochreous with narrow black apical bands.

Legs deep brown, paler at the base and on the venter of the femora, a yellow spot at the apex of the hind tibiæ; hind tibiæ with pale chætæ; fore and mid ungues unequal, both unisgrrate, hind equal and uniserrate.

Wings with short fork-cells, the first longer and narrower than the second, its stem nearly as long as the cell, its base level with that of the second; stem of the second longer than the cell; posterior cross-vein about its own length distant from the mid, sloping towards the apex of wing; the third vein carried as a very distinct pseudo-vein to the base of the wing, and a very distinct pseudo-vein between the fifth and sixth; the marginal cell very long and swollen in the middle.

The male genitalia with a broadly expanding clasper ending in a process on one side and a dark brown blunt spine on the other, giving it a forked appearance.

Length: 6 mm.

Habitat: Obuasi.

Time of capture: 2, x., '07.

Observations: Described from a caught in the bush. This well-marked Culicada can at once be told by the male claspers and the marked marginal cell in the d. No was found in the collection.

Culicada mediopunctata, nov. sp.

Thorax deep brown; head paler with a creamy border around the eyes; palpi and proboscis deep brown. Abdomen deep brown, the segments with basal median greyish-white spots, pale lateral basal spots; venter yellow, the segments with narrow apical dark borders. Legs deep brown, unbanded, apices of hind tibiæ yellow, knee spots pale.

9. Head brown with narrow-curved pale scales, a dense bright golden border

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of scales around the eyes; upright forked scales thin, dark; chætæ dark brown, somewhat golden between the eyes; palpi rather long, black; proboscis and clypeus black; antennæ black, basal segment and base of second segment bright testaceous, the former with some small flat pale scales.

Thorax deep rich brown with small narrow-curved golden scales; some short golden chætæ in front of the roots of the wings and the others dark brown; scutellum brown with narrow-curved pale scales and deep brown border-bristles; metanotum deep brown; pleura pale brown with patches of dull creamy flat scales.

Abdomen deep blackish-brown, almost black, the segments, except the basal one, with median basal dull-white patches; border bristles golden; laterally are pale creamy basal lateral patches; venter yellow scaled, except at the apex, where they are creamy, each segment with a narrow dark scaled apical border.

Legs deep brown, except the femora, which are ochreous below and with some pale scales scattered about, knee spots pale, apex of hind tibiæ with a prominent white band; chatæ golden; ungues all equal and uniserrate.

Wings with the fork-cells short; the first submarginal a little longer and narrower than the second posterior cell, its stem about half the length of the cell, its base slightly nearer the base of the wing, stem of the second posterior about two-thirds the length of the cell; posterior cross-vein about its own length distant from the mid. Membrane slightly tinged with yellowish.

Halteres with pale stem and fuscous knob.

Length: 6 mm.

Time of capture 3, x., '07.

Habitat: Obuasi.

Observations: One 9 caught in bush, 5 p.m. A very marked Culicada, easily told by the basal central pale abdominal spots.

Genus: CULICELSA, Felt.

(Bull. 79, Ent. 22, N. York State Mus., p. 391, 6, 1904.) Culicelsa accraensis, nov. sp.

Thorax mottled with rich brown and pale dull golden scales; pleuræ greyish brown with white puncta; proboscis deep brown with a prominent median creamy band. Abdomen black with narrow basal white bands and lateral basal spots in the female, broader in the male. Legs deep brown with narrow pale banding to some extent involving both sides of the segments.

9. Head brown with narrow-curved pale creamy scales and flat creamy scales at the sides; dark upright forked scales behind, deep bright ochreous ones in front; clypeus brown; proboscis jet black with a rather broad median creamy band; palpi black scaled with a few creamy scales at the tip.

Thorax black clothed with narrow-curved pale dull golden and some brown scales, the brown forming two large patches in front; chætæ dark brown, small short ones in front of the base of the wings; scutellum brown with narrow-curved pale scales; with seven long, dark posterior border-bristles and some small golden ones; metanotum deep brown; pleuræ paler brown with some patches of flat white scales.

Abdomen black scaled; the first segment all black, with long dense hairs dark at the base, golden at the tips; other segments with narrow white basal bands; penultimate segment with an apical creamy-white border, border bristles brown and golden; there are also basal lateral pale patches; venter broadly white scaled at the bases of the segments, dark apically.

Legs deep brown, venter and apices of the femora creamy; venter of the rest of the legs with ochreous reflections, traces of narrow yellowish pale banding to the fore and mid feet, except on the last segment, the banding more pronounced on the hind; apices of femora and tibiæ spinose, spines dark; ungues equal and simple.

Wings with rather broad linear lateral vein scales; first fork-cell longer and slightly narrower than the second, their bases about level; stem of the former rather more than one-third the length of the cell, that of the latter not quite half the length of the cell; posterior cross-vein a little more than twice its own length distant from the mid.

Length: 45 mm.

d. Similar to the female, but the abdominal markings much more distinct; abdomen hairy, hairs brown. Fore and mid ungues unequal, the larger toothed, the smaller apparently simple, the tooth on the mid larger unguis very large compared

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