10
3. Species-T. thoracinus, P. de B.
A specimen was taken in the carrier lines at Kumasi (Patasi Road),
18 December, 1907.
Specimens were received from gold dredge on the River Ancobra in May.
4. Species-T. biguttatus, Wied.
A specimen was taken in the house at Accra in December.
Specimens received from Navarro, Northern Territories, in August. All those taken were females.
5. Species T. ditaeniatus, Macq.
Taken in house at Accra, 6 November, 1907.
6. Species-T. marmoratus, Surcouf.
Taken in house at Obuasi after slight rain, 27 May, 1907.
7. Species--T. fasciatus, Fabr.
A specimen was received from gold dredge on the River Ancobra in May,
1907.
8. Species-T. taeniola, P. de B.
Specimens were received from Navarro, Northern Territories, in August,
1907.
9. Species-T. socialis, Walk.
Specimens received from gold dredge on the River Ancobra in May, 1907.
10. Species-T. rufipes, Macq.
Specimens taken in house and veranda at Sekondi in 15 October, 1906,
to 30 October, 1906.
11. Species-T. par., Walk.
Specimens taken in bungalow at Sekondi on 15 October, 1908.
12. Species-T., sp. nov.
A dark, small species, with two canary-yellow spots on abdomen. Specimen taken at Binkro on the Cape Coast Road in tent 17 December,
1907.
13. Species-T., sp. nov.
A dark brown species with pale front tibiæ and four apical white spots
on abdomen.
Specimens taken in veranda at Obuasi, 10 December, 1907.
14. Species-T., sp. nov.
A dark brown species with dark front tibiæ and four white spots on
abdomen.
Specimens taken in railway carriage a short distance outside Obuasi at
9 a.m., 6 May, 1907.
15. Species-T., sp. nov.
A black species with all the tibiæ white.
Taken in house at Obuasi 4 p.m. 30 July, 1908.
16. Species-T., sp. nov.
A black species with front tibiæ white and hind tibiæ brown.
Taken in railway carriage at Huni Valley Station, Gold Coast Govern- ment Railway, and in house at Obuasi in May and December (11 May, 1907, and 7 December, 1907).
17. Species-T., sp. incerta, near T. secedens, Walker.
Taken in tent at Asamprey, a village on the cross road between Obuasi
and Brafo-Yedru, on the Cape Coast Road.
The flies made their appearance immediately a site for the tent had been cleared of undergrowth, and entered the tent in twos and threes until sunset.
18. Species-T., sp. incerta.
11
Specimen received from gold dredge on the River Ancobra in May.
19. Species-T., sp. nov.
A small orange-buff species with broad, median, longitudinal, black
band on abdomen.
Received from Navarro, Northern Territories, 14 August, 1907.
8. Genus-Thaumastocera, Grünberg.
1. Species-Th. akwa, Grünberg.
Taken in house at Obuasi, 4 June, 1907.
6. Trypetida:
MYODARIA.
B. Acalypteræ.
The flies of this family are well-known horticultural pests. The eggs are laid within fruit by means of a long ovipositor, and change into white maggots, which destroy the pulp.
a. Genus-Dacus, Meigen (the melon fly).
1. Species--D. bipartitus, Walker.
Specimens were reared from larvæ taken from cucumbers at Kumasi, 25 October, 1907, and specimens were taken at Obuasi upon a palm
leaf covered with coccids, 25 November, 1907.
2. Species-D.,
sp. incerta.
Taken on palm leaf covered with coccids at Obuasi, 20 November, 1907.
3. Species-D., sp. incerta.
Taken on palm leaf covered with coccids at Obuasi, 28 October, 1907. 4. Species-D.,
sp. incerta.
Taken on a palm leaf covered with coccids at Obuasi, 11 October, 1907,
and 3 November, 1907.
5. Species-D., sp. incerta.
Taken on a palm leaf covered with cocçids at Obuasi, 3 November, 1907.
B. Genus Ceratitis, MacLeay (the fruit fly).
1. Species C. punctata, Wied.
Specimens Obuasi, 23 June, 1907, 1 July, 1907, and 30 June, 1907.
2. Species-C. anonæ, Graham.
Specimens reared from larvæ found in the fruit of soursop (Anona acida) and guava at Obuasi, 1 July, 1907, 7 September, 1907, and 19 November, 1907.
3. Species C., sp. incerta.
Specimens taken on palm leaf covered with coccids at Obuasi, 5 July,
1907, and 26 November, 1907.
4. Species-C., sp. incerta.
Specimens taken on palm leaf covered with coccids at Obuasi, 3 Novem-
ber, 1907, and 25 December, 1907.
7. Genus-Trypeta, Meigen.
1. Species-Adatha, Walker.
Specimens taken in house, 8 p.m., 5 November, 1907.
10. Drosophilidæ :
The larvae of these flies also attack fruit. I reared specimens from larvæ
taken from ripe bananas.
34670
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13. Chloropidæ:
C
12
The larvae of flies of this family attack cereals.
2. Family Muscido:
BB. Calyptera.
Specimens of the following genera were collected-
Genus Stomoxys, Geoff.
4.
B.
11
7.
+
δι
"
t.
T.
P
0.
K.
λ.
με
יו
.
2. Muscidæ :
Glossina, Wied.
Rhinia, B. and von B.
Calliphora, R. Desv. Ochromyia, Macquart. Auchmeromyia, Schiner. Cordylobia, Grünberg. Lucilia, R. Desv.
Pycnosoma, B. and von B.
Thelychata, B. and von B. Pyrellia, R. Desv.
Musca, Linn.
Graphomyia, R. Desv.
Morellia, R. Desv.
a. Genus Stomoxys, Geoff.
1. Species-St. calcitrans, Lin.
Specimens were taken on cattle where they were associated with St. nigra, Macq., in houses, and in tent, 21 May, 1907, 30 Sep- tember, 1907, and 16 December, 1907.
2. Species St. nigra, Macq.
This is a very numerous and very bloodthirsty species. It usually attacks cattle, and when disturbed it hovers in swarms above the animals. When full of blood, the flies perch upon the leaves of the shrubs or plants round the grazing cattle, and the leaves are often stained with blood.
In the state of repletion the abdomen is red and distended with blood
and the flies are sluggish and easily caught.
It would be worth while ascertaining if this species can transmit try-
panosomiasis, &c. The species also attacks man.
On the 11 June, 1907, at Obuasi, light rain fell at 1 p.m., and about 2 p.m. I noticed a great swarm (some thousands) of St. nigra on the windows of the smaller ward of the disused hospital.
12 June, 1907.-The flies still on the windows, but in smaller numbers,
some dead.
13 June, 1907.-Flies again swarming in great numbers on windows (ie., a new brood hatched?). Swarms of these flies continued to appear at intervals until 7 July, 1907. Heaps of their dead bodies were then swept up from the floor and windowsills.
I believe they must have been bred in the ward. I was in the ward between 11 and 12 a.m. on the 11th June and there were then no flies on the windows. The hospital is a wooden building with double- boarded walls. The flies may possibly have been bred between the double boarding, but there was certainly no other breeding place in the ward.
3. Species St. omega, Newstead.
Specimens of this species were taken in the sitting-room and on windows at Kumasi and Obuasi, 28 July, 1907, 26 October, 1907, and 28 November, 1907.
4. Species St. sellata, Grünberg.
Specimens of this rare species were taken in the hospital grounds at Kumasi and in a bush path leading to a native village two miles
13
north of Obuasi. These flies hide under leaves and are difficult to find.
Specimens were taken, 20 June, 1907, 24 July, 1907, at Obuasi, and
and 19 October, 1907, at Kumasi.
5. Species--St. inornata, Grünberg.
This species was taken on the sides of roads and bush paths leading to villages. The flies are difficult to find, as they perch under leaves and are of a black colour. They appeared to be always associated with Glossina palpalis, R. Desv., but, unlike the Glossina, they do not perch upon the roadway. A single pair was caught on the upper surface of a leaf in coïtu.
Specimens taken 15 July, 1907, 31 July, 1907, 13 October, 1907
21 December, 1907.
P. Genus Glossina, Wied.
1. Species G. palpalis, R. Desv.
2. Species G. pallicera, Bigot.
3. Species-G. fusca, Walker.
A detailed separate report on this genus has been sent in (see pages
1 to 7.)
7. Genus-Auchmeromyia, Schiner.
Species-luteola, Fabr. (the floor-maggot fly).
The larvæ of this fly were found in the floors of native huts and in the floor of the gaol at Obuasi. The fly was caught at Obuasi upon a piece of decaying banana under the bungalow, and at Kumasi upon a palm-wine jar in the street. The larvae were usually full of blood. When placed upon dry earth they at once bury them themselves and become pupæ, from which the fly is easily reared. Specimens of fly taken at Obuasi, 14 August, 1907.
Specimens of fly taken at Kumasi, 18 August, 1907.
n. Genus-Cordylobia, Grünberg.
Species anthropophaga, Grünberg (the tumbu fly).
The larvae of this fly cause painful boils in man and beast. The larvæ were found at Accra in the subcutaneous tissue of the abdominal wall and scrotum of the large rat, Cricetomys Gambianus, Waterhouse. They were placed in earth, 15 March, 1907, and the fly appeared 31 March, 1907. A second lot were placed in earth, 19 March, 1907, and the flies appeared, 2 April, 1907. Shortly before finding the larvæ I caught a specimen of the fly upon the breakfast table in the veranda of the Medical Officer's quarters.
Genus Pycnosoma, B. and von B. (ordure fly).
1. Species-P. marginale, Wied.
Specimens of this species were taken on ordure and upon leaves soiled
with urine.
2. Species-P. putorium, Wied.
This is the commoner species of ordure fly in Ashanti. It is to be met with during the whole of the rainy season and probably all the year through.
3. Species-P., sp. nov.
This is a common species in Ashanti and is found upon ordure and leaves
soiled with urine.
Genus-Graphomyia, R. Desv.
Species G., sp. nov.
A handsome fly with longitudinal yellow and black bands upon the thorax. Specimens were found upon ordure in bush paths leading to villages.