74 TABANUS MULTIPITNCTATUS. 



the crossveins and the base of the upperbranch of the 

 furcated cell; first and fourth posterior cells not narrowed 

 at the end. 



A Q from Chimfimo (S. W. Africa) , presented to the 

 Leyden Museum by the late Mr. A. B. van Medenbach de 

 Rooy. 



28. Tabanus leucaspis, n. sp. 

 (Plate 5, fig. 3). 



Ater opacus ; oculis nudis ; palpis pallidis ; abdominis 

 segmentis tribus primis albido-poUinosis ^ segmentis 3 et 4 

 macula alba signatis; alis nigro-fuscis. — Q.Long. 22mm. 



Related to T. biguttatus Wied., but differing from that 

 species by its pale yellow (not black) palpi. 



Face grey , on the lower part with a whitish pile ; front 

 dark grey ; vertex black ; between the corners of the eyes 

 a shining black , round knob , extending upwards in a 

 narrow black line. Eyes bare, black, without any trace 

 of crossbands even after having been moistened. Antennae 

 black, rather slender, the upper angle of the third joint 

 with a small tooth. Palpi pale reddish-yellow, — Thorax 

 and scutellum dull black -, the thorax anteriorly with traces 

 of giey longitudinal bands ; pleurae grey. — Abdomen 

 convex , dull black ; the three basal segments very densely 

 covered with a yellowish white dust, and provided with 

 an ill-defined black dorsal band , in which a trigonal white 

 dot is seen at the front margin of the third segment ; a 

 similar dot is present on the fourth segment. — Legs black ; 

 anterior femora beneath and hind tibiae on the outside 

 with a delicate whitish pile. Halteres black ; the tip of 

 the knob yellow. Wings fuscous ; the disks of all the cells 

 a little lighter, especially that of the discal cell; first pos- 

 terior cell slightly narrowed at the end. 



A female specimen from the Gold Coast (W. Africa). 



Notes from the ILieyden ]V£useura , "Vol. "VII. 



