APPENDIX 
XI 
leg banding. The specimen is described partly from a xylol-balsam preparation. The mouth is provided 
with very distinct piercing lancets. It comes most near Corethra brasilicnsis, but can at once be 
separated by the leg banding, wing venation, and spotting. 
The great extension of the second long vein past the marginal transverse vein is a very marked 
character. 
OTHER DIPTERA 
Phlcbotomus. Sp. ? 
Several specimens of a large ' owl-midge ' hatched out from pupae, taken in November and 
December from a duck pond. The species is probably new. It seems to be common in West Africa. 
Tabanus dorsovitta. Walker 
Two specimens of this common West African gadfly, which bites severely, taken in mangrove 
swamps and called by Dr. Dutton the large Mangrove fly. 
Gloss ina longipalpis. Wiedemann 
Var. tachinoides. Westwood 
Eight of this Tsetse fly were taken by Dr. Dutton in November. It bites viciously along the 
river. It is closely related to the Glossina longipalpis, Wied., but constitutes a distinct variety. It was 
described by Westwood as a distinct species. Mr. Austen treats it as a variety of the type. Its 
possible connexion with the Trypanosoma in man h.is been referred to before. 
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