DES(JRI?T10X OF GLOSSINA LONGIPENXIS. lOf 

 Glossina long'ipennis, Corti. 



(Plate VII.) 



Glossina longipennis, Corti, Ann. Mus. Civ. Genov, Serie 2", Vol. XV. 

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

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



^ , 9 • — Length, lOf to 11^ millim. (5 to 5^ lin.) ; length of 

 wing, 11^ to 12 millim. (5^ to 53. lin.); width of head in (J, 

 3| millim. (If lin.), in $ 3^ to 3f millim. (1^- to 1^ lin.) ; width 

 of front at vertex, in ^ |- millim. (| lin.), in 9 just over 

 1 millim. (^ lin.) ; leng-th of proboscis (palpi) beyond margin of 

 buccal cavity, 2f millim. (1^ lin.). 



Thorax isabella colour,* with a narrow faint longitudinal stripe 

 on each side of the median line, dying away behind the transverse 

 snture before reaching the hind margin, and four sharply defined 

 small dark brown oval spots, arranged in a parallelogram, two in 

 front of and tivo behind the transverse suture ; abdomen ochraceous- 

 buff,'\ the longer hair at the base of the second segment entirely 

 golden yelloio, the third to the sixth segments inclusive each ivith a 

 dark brown lunate mark on each side at the base, widely distant 

 from the median line, but not extending quite into the basal angle ; 

 ocellar spot dark brown ; proboscis bulb chrome yellow, icith a sharply 

 defined dark brown or reddish brown tip. 



Head. — Buff, posterior surface grayish ; the spots at the base 

 of the vertical bi'istles brown, but not united by a brown band ; 

 frontal stripe scai'cely darker than the margins, the latter, as 

 well as the face and facial pit, faintly shimmering whitish-yellow. 

 Ocellar spot small, but conspicuous owing to its dark brown 

 colour ; ocelli small, the anterior ocellus of the same size as the 

 other two ocelli. Antennse : first two joints buff ; second joint 

 sometimes more or less brown on the inside ; third joint 

 brownish, the tip broader and with more prominent apex than 

 is usually the case in Gl. fusca ; arista buff, shorter than in 

 Gl. fusca, second joint dark brown on under side only at extreme 

 base. Palpi buff-yellow, not darker above, the tips brown. 

 Bristles fringing the margin of the buccal cavity, below the 

 facial angle fine, numerous, and golden yellow. 



* Ridgwaj', "Nomenclature of Colors," PI. III. Fig. 23. 

 t Ridgway, Ibid. PI. V. Fig. 10. 



