102 DESCEIPTION OF GLOSSIXA LONGIPENNIS. 

 Glossina longipennis, Corti, 



(Plate X.) 



Glossina longipennis, Corti, Ann. Mus. Civ. Genov., Serie Q'', Vol. XV 

 (XXXV), p. 138 (1895) ; Hough, Proc. Acad. Nat. Sci. Philadelphia, 

 1898, p. 172; Austen, Proc. Zool. See. Lond., 1900, p. 10, and "A 

 Monograph of the Tsetse-Flies," p. 101, Plate VII (1903) ; Brumpt, 

 Comptes rendus des Stances de la Societe de Biologic, T. Iv, p. 1497 

 (1903), and T. Ivi, p. 673 (1904). 



^, 9- — Length ^ (6 specimens) 10'2 to 11"6 mm., ^ 

 (3 specimens) 11 "4 to 13 mm. ; width of head, (J 3*4 to 3-6 mm., 

 $ 3"5 to 3"75 mm. ; width of front at vertex, ^ just under 

 1 mm., 9 1"2 mm. ; length of portion of palpi projecting beyond 

 margin of buccal cavity, ^ 2*4 to 2"8 mm., 9 ^ ^mi. ; length 

 of wing, ^ 10-8 to 11-25 mm., 9 12 mm. 



Hesemhling G. brevipalpis, Newst. (p. 85, Plate IX), in size 

 and general appearance, hut distinguished by the greater tcidth of 

 the front in both sexes, by the ocellar spiot being darlc brown or clove- 

 broivn, and conspicuous, instead, of merely light broimiish and in- 

 conspicuous^ by the proboscis bulb having a sharply defined brown or 

 dark broicn tip instead of being uniformly pale yellow (at any rate 

 except on the upper margins), and by the dorsum of the thorax 

 exhibiting, in addition to a pair of admedian spots on the suture 

 itself, four sharply defined, darlc broivn, more or less oval or elongate 

 spots, arranged in a parallelogram, tivo in front of and two behind 

 the transverse suture. 



Head buff, posterior surface smoke-grey, yellowish-grey, or 

 drab-grey ; frontal stripe scarcely deeper in colour than frontal 

 margins (parafrontals), the latter, as well as the face and facial 

 pit, faintly shimmering whitish-yellow pollinose ; ocellar spjot 

 conspicuous owing to its colour, ocelli small, of equal size ; 

 vertical bristles with a mummy-brown or light brown spot at 

 base of each, but not connected by a brown band ; first and 

 second joints of antennae cream-buff, second joint more or less 

 brown on inside, third joint mouse-grey, brownish-grey, or 

 isabella-coloured, front iBargin with a short fringe of fine and 

 minute hairs (somewhat longer than corresponding fringe in case 

 of G. brevipalpis, Newst.), distal extremity broad and prominent, 

 especially in 9 > arista buff", terminal joint fairly stout and in 9 

 somewhat short, dark brown at base beneath, branched hairs 

 about twenty-one in number ; palpi bufF-yellow, not darker above. 



