G. LONGIPALPIS: KEPEODUCTION, ETC. G7 



In Central Dahomey, where, according to Roubaud, the sexes 

 show a well-marked separation or localisation, G. lomj'qjalpis 

 occurs in the vicinity of streams and large rivers. " The males 

 are found only in the clumps of brushwood along the inner edge 

 of the forest belt near streams ; the females are to be met with 

 in open clearings where there are acacias and mimosas." Roubaud 

 states that in Dahomey G. Jongipalpis is abundant during the 

 rains, but seems to disappear almost completely in the dry 

 season, especially after the bush is burnt ; its habitat is more 

 restricted than that of either G. taehinoides or G. falpalis, both 

 of which are also found in the same district, and it mingles with 

 its congeners less than does either of the two species mentioned. 

 Like G. palpnVis and taehinoides, G. Jongipalpis in Dahomey, 

 according to Roubaud, lives chiefly at the expense of wild 

 mammals, and accompanies big game in its movements ; the 

 present species especially frequents paths newly trodden by 

 hippopotamus and elephant.* 



.In the Western Province of Ashanti, according to Kinghorn, 

 G. Jongipalpis "is essentially an open country fly and is not 

 found in the forest belt." f 



Reproduction and Preliminary Stages. 



Glossina JongipaJpis in Dahomey was never observed by 

 Roubaud to copulate in captivity. Females kept by the observer 

 referred to at 25° C. (77° ¥.) deposited a larva at intervals of 

 about ten days, and the pupal stage, at an average temperature 

 of from 24° to 25° C. (75-2° to 77° F.), was found to last from 

 twenty-six to thirty-tive days.} 



Affinities and Distinctive Characters. 



In the GJossina morsitans group, to which, as already 

 stated, G. Jongipalpis belongs, the present species can be 

 distinguished from G. morsitans, Westw., inter alia by some of 

 the same characters as those serving to distinguish G. pallidipes, 

 Austen, from the species mentioned (see p. 62), i.e. by the 



* Cf. E. Roubaud, " Etudes biologiques sur les Glossines du moyen 

 Dahomey " : Comptes Reudus dcs Seances de I'Acadeniie des Sciences, 

 T. 152, No. 7, p. 40G (F6vrier 13, 1911). 



t Cf. Sleeping Sickness Bureau Bulletin, Vol. 3, No. 25, p. 136 

 (March 14, 1911). 



X Roubaud, loc. cit., p. 407. 



