SPECIES OF GLOSSINA 



A. Thorax with the usual longitudinal markings more or less distinct. 



Palpi relatively long and thin. Thorax russet brown, mark- 

 ings distinct, areas enclosed by the curved lines becom- 

 ing gradually paler outwardly. Third segment of the 

 antenna clothed with very short pubescence. Harpes of 

 male with a strongly serrated margin ; median process not 

 extending beyond the inferior claspers. .... fusca. 



Palps as in fusca. Thorax smoky brown, pale markings 

 sharply and clearly defined. Third or terminal segment of 

 antenna clothed with very long pubescence, and with apex 

 strongly recurved. Harpes of male not serrated, median 

 process projecting moderately beyond the inferior claspers. nigrofusca. 



Palpi relatively short and stout. Thoracic markings not 

 very clearly defined. Third segment of antenna with very 

 short pubescence. Median process in the armature of the 

 male more than twice the length of the inferior claspers ; 

 harpes not serrated . . . . ... . . brevipalpis. 



B. Thoracic markings reduced to spots. 



Thorax with four (sometimes six) dark brown oval spots, the 

 four larger ones arranged in a parallelogram. Harpes of 

 male clothed with large squamose spines .... longipennis. 



C. Without such spots. 



Lateral branches of hairs of arista very long, the terminal 

 one about half the length of the free end (tip) of the shaft. 

 Harpes of male with four narrow pointed appendages. . tabaniformis." 



Lateral branches of the hairs of the arista very short, the 

 terminal one about one-fifth the length of the free end of 

 the shaft. Harpes of male with one broadly lanceolate 

 appendage medico rum 



Lateral branches of the hairs of the arista relatively long. 

 Harpes of male rudimentary with distal margin irregularly- 

 serrated severini.* 



Group 2 (Palpal in Group). Hind tarsi all dark. Length 7 to 9^ mm. 



Thorax, legs, and abdomen spotted. . . . . . . maculata. 



Abdomen very dark brown or blackish brown, with a small 

 median pale triangular area on second segment, extending 

 distally as a very narrow stripe. Inferior claspers of male 

 with a long broad stem to the foot-like terminal process ; 

 superior claspers straight, rapidly narrowing distally and 

 terminating in a conical point ...... palpalis. 



Similar to G. palpalis, ' but browner and somewhat larger 

 ' . . . pale area on second segment broad and more 

 1 or less quadrate or irregular in outline . . . dorsum, 

 ' of seventh abdominal segment . . often cream 

 buff'. (Austen). Superior claspers of male with a terminal 

 tooth-like extension one-third the length of the clasper. . calignea. 



Small and slenderly built. Abdomen pale, with distinct 

 transverse blackish bands ; median pale stripe very distinct. 

 Legs, with the exception of the hind tarsi and the tips of 



* Not included in original Key. 



