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TREEC.O.
885
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Head with dull golden narrow-curved scales at the back, dark ones in front, and golden ones around the eyes, flat, dark, and then creamy lateral ones, black upright forked scales and black chætæ; clypeus and proboscis and palpi black; antennæ black.
Thorax rich bright brown with small narrow-curved bronzy scales, two pro- nounced yellow spots of larger curved scales in the middle, a small patch on each side right in front, and a patch in front of the roots of each wing, chata dark brown; scutellum with small, flat, pale yellowish scales when looked at with the head to the light, quite dusky when in the reverse direction; pleuræ brown with four white spots; metanotum deep brown.
Abdomen deep dusky brown to black, with small white, basal, lateral spots, and basal white bands to the venter.
Legs deep brown, unbanded, but in the hind legs there is a prominent creamy band at the apex of the tibiæ and a smaller one on the mid legs, knee spots creamy; fore and mid ungues equal and uniserrate, hind equal and simple; venter of femora pale.
Wings with brown scales; first fork-cell a little longer and narrower than the second fork-cell, their bases nearly level, stem of the former less than half the length of the cell; stem of the latter nearly two-thirds the length of the cell; posterior cross-vein barely its own length distant from the mid.
Length: 45 mm.
Habitat: Obuasi.
Time of capture: 7, viii., '07; 30, ix., '07; 1 and 2, x., '07; 29, x., '07; 8, xi., '07. Observations: Caught in bush at 11 a.m. Described from several 9's. The two thoracic spots are marked, and the male genitalia are very marked, as shown in the figure. The next species comes close to it, but can be separated by the smaller size, different venation, and markedly different genitalia. One noticeable thing in this and the next species is that the scutellum is pale in one light, dusky in
another.
Reedomyia biannulata, Theobald.
(Mono. Culicidæ, IV., p. 263 (1907) (♂ only).)
Thorax ornamented with brown and golden scales, the former forming two prominent patches in front, edged at the back with golden. Head golden in the middle with black and creamy patches laterally; scutellum silvery white. Abdomen black with basal white bands. Legs as in former species.
Head brown with golden curved scales and black upright forked scales, then a lateral patch of flat black scales, then a patch of yellow flat ones, and then a patch of dusky ones; some stout black chæfæ project forwards; palpi, proboscis, and antennæ black.
Thorax black, clothed with scanty golden narrow-curved scales, thickest in front, in the middle and behind two depressed darker patches; chætæ black; scutellum as in bipunctata; metanotum brown.
Abdomen black with basal white bands and pale golden border-bristles; venter black and creamy. Legs much as in the former, but the hind tibial bands small, and the hind knee spots not prominent; ungues as in R. bipunctata.
Wings with a white scaled spot at the base; first fork-cell longer and narrower than the second fork-cell, its stem about half the length of the cell; stem of the second two-thirds the length of the cell; posterior cross-vein about as long as the mid, not quite its own length distant from it.
Length: 35 to 4 mm.
Very like 9, but the abdominal banding more pronounced. This I have previously described. The male genitalia are just as in the type from Sierra Leone.
Habitat: Accra, Obuasi.
Time of capture: 16, 19, and 20, vi., '08.
Observations: Taken in latrines. It resembles, at first sight, some varieties of the former, but may be told by the different venation in the (compare figures), by the small white patch at the base of the costa, by the normally banded abdomen, and by the very different genitalia. Some 9's show no abdominal banding at all, but I am inclined to think these are only a variety. The type (d) was described from Sierra Leone.
Also specimens, from Obuasi, taken in bush path 15, xi., '07; 1, x., '07; 7 and 11, viii., '07.
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Genus: Myxosquamus, nov. gen.
Head with rather loosely applied, flat scales over most of its area, a basal median patch of narrow-curved scales, and narrow-curved ones around the eyes, thin upright forked scales; palpi short in the 9, terminal segment as long as the rest of the palp; thorax with narrow-curved scales; scutellum with the mid lobe clothed with some small, narrow, flat scales, and narrow-curved ones at the back, sides, and border, lateral lobes with rather large narrow-curved scales. Wings scales, Taniorhynchus like, but smaller.
This
genus can at once he told by the scutellar ornamentation and alar scales.
Myxosquamus confusus, nov. sp.
Thorax rich brown with scattered golden scales; head pale brown in the middle, a dark patch on each side; proboscis and palpi black; pleure bright, pale brown with pale puncta; scutellum pale-scaled in certain lights, dark in others. Abdomen black with basal pale bands which spread out laterally; venter with ochreous basal and brown apical bands. Legs deep brown, unbanded, a yellow spot at the apex of the hind tibiæ.
Head black, clothed with flat black scales in-front, thin narrow-curved pale scales behind, then a patch of flat dull creamy scales, still more to the side a patch of flat dark ones, and then pale creamy ones again, narrow-curved golden scales along the eye borders and black upright forked scales, two dark brown chætæ project forwards between the eyes, and three or four long ones on each side pro- jecting inwards. Clypeus and palpi and proboscis deep blackish-brown, the palpi paler at the base with some long black chætæ; proboscis with some pale scales towards the base; antennæ brown, basal segment fawn coloured with some small dark scales on one side, base of second segment testaceous.
Thorax rich brown, clothed with narrow-curved brown and golden scattered scales; jet black chata over the roots of the wings, and as two lines behind the mesonotum; scutellum pale brown, the mid lobe with small narrow flat dusky scales at its base, then similar formed dull creamy ones, and then near the posterior border dull creamy narrow-curved ones, lateral lobes with long narrow-curved pale creamy scales; posterior border-bristles black, eight to the mid lobe; viewed with the head pointing away from the light, the median lobe scales are all dusky, the lateral still creamy white; metanotum chestnut brown; pleuræ bright brown with patches of flat white scales; prothoracic lobes pale brown with large narrow-curved creamy scales.
Abdomen pale testaceous, clothed with black scales, showing dull violet reflec- tions in some lights, with very narrow pale basal bands which spread out laterally; posterior border-bristles dull golden brown; venter with pale creamy, basal bands, dark apical ones to the segments.
Legs uniformly brown with pale coxa with patches of flat creamy scales; chata bright golden in some lights, black in others; ungues all equal and uniserrate. Wings rather short and broad; the first fork-cell longer and narrower than the second, its base slightly nearer the base of the wing, its stem nearly half the length of the cell; stem of the second fork-cell two-thirds the length of the cell; posterior cross-vein rather more than its own length distant from the mid; wing scales rather broad.
Length: 4 mm.
Habitat: Accra.
Time of capture : 3, iii., '07.
Observations: Described from a single taken in the hospital. The squamose characters at once separate it.
Genus: STENOSCUTUS, nov. gen.
Head clothed with narrow-curved scales over most of the surface, with flat lateral ones and evenly disposed, upright, forked ones; palpi short in 2. Thorax with narrow-curved scales; scutellum with broad-curved, almost spindle-shaped scales, lateral lobes with flat scales and a few narrow-curved ones. Mesothorax with all narrow-curved scales.
The scutellar scales in this genus are very marked, narrow ones being on all the lobes, but flat predominate on the lateral lobes.