﻿136 ERNEST E. AUSTEN — NEW AFRICAN TABANIDAE — PART I. 



following segments, somewhat longer and more erect on first and last segments : 

 ventral scute of second segment more or less mummy-brown proximally, clove- 

 brown or dark sepia-coloured distally ; ventral scutes of third and fourth segments 

 lighter or darker clove-brown, base of ventral scute of third segment sometimes 

 more or less mummy-brown ; ventral scutes of last three segments clove-brown 

 or black : hind borders of ventral scutes of second and two following segments 

 light grey pollinose, and clothed with minute, appressed silvery-white hairs ; 

 ventral scutes of last three segments clothed with short black hair, hind margins 

 of fifth and sixth segments narrowly greyish. Wings : stigma large, elongate, 

 very dark brown and conspicuous : first and second costal cells mummy-brown ; 

 basal cells, proximal two-thirds of anal cell, and base of axillary cell dusky hyaline, 

 distinctly paler than distal half of wings : proximal portion of marginal cell, as 

 far as commencement of stigma, semi- hyaline ; first submarginal and first pos- 

 terior cells with a faintly indicated narrow pale transverse mark running across 

 the base of each ; a similar mark resting on the anterior side of the third longi- 

 tudinal vein, a little before the backwardly directed appendix to its anterior 

 branch, and a third minute pale mark in the discal cell near its distal extremity, 

 resting on the fourth vein ; these marks are more distinct in the para-type than 

 in the specimen selected as the type. Squamae dark sepia-coloured. Haltcres : 

 knobs buff-yellow or buff, stalks brownish, buff-yellow or buff at the tips. Legs : 

 front tibiae conspicuously incrassate ; black portions of legs clothed with black 

 hair, cream-coloured proximal portions of tibiae clothed with minute, appressed, 

 silvery-white hairs, some of which, at least on the inner or posterior surfaces, are 

 also to be seen on the proximal extremities of the black parts of the tibiae. 



Sierra Leone Protectorate : Gondema (about 10 miles north of Barri- 

 walla, close to Anglo-Liberian Frontier), lo.vii.l 911, "not numerous " (Dr. J. 

 C. Murphy, W.A.M.S.: presented by the Entomological Research Committee). 



This fine species is named in honour of its discoverer, who, by his energy as a 

 collector, has during the past few years done much to extend our knowledge of 

 the blood-sucking flies of the hinterland of Sierra Leone. Owing to its size 

 alone, Hippoccnirum murphyi is readily distinguishable from the other species of 

 its genus at present known, while as regards H. versicolor, Austen, further dis- 

 tinctive characters are afforded by the palpi (see diagnosis above), the practically 

 unicolorous wings, the sharply contrasted colours of the conspicuously banded 

 legs, and the swollen front tibiae. From Hippocentrum trimaculatum, Newst., 

 which is perhaps identical with H. (Haematopota) strigipennis, Karsch, H. murphyi, 

 apart from its size, is distinguished by the palpal character already mentioned, 

 the greater thickness of the first joint of the antennae, the absence of more or 

 less conspicuous wing-markings, and the coloration and banding of the legs. 



