SSO REPORT OF THE HARVARD AFRICAN EXPEDITION 
Surcouf (1908, Bull. Mus. Hist. Nat. Paris, XIV, p. 284) describes the rod- 
like processes as ‘almost completely closed tubes,’ and says that their func- 
tion would appear to be to assist the insect in sucking up blood or other fluids. 
By means of a mere external examination the present writer has not been able 
to satisfy himself that the bodies in question are really tubular, and their pre- 
cise structure and significance remain to be determined; meanwhile the at- 
tention of the reader may be directed to the existence of apparently homologous 
processes on the inner surfaces of the labella in Dorcaloemus stlverlocky Austen 
and Pangonia comata Austen.” 
The extraordinary pectinate labella are equally developed in both sexes, 
which renders it rather improbable that they are used in sucking blood, since 
no males of Tabanidae are known to be hematophagous. It is more likely that 
these insects feed upon juices of plants, either visiting flowers, or, as Surcouf 
suggests, imbibing the sap of wounded trees. 
Subpangonia gravoti Surcouf 
Subpangonia gravoti Surcouf, 1908, Bull. Mus. Hist. Nat. Paris, XIV, p. 284 (¢; N’tem Basin, 
French Congo); 1921, ‘Gen. Insect., Tabanidae,’ p. 102, Pl. III, figs. 9a-b(@). Ricardo, 1915, 
Arch. f. Naturgesch., LX XX, (1914), Abt. A, Heft 8, p. 124 (9%). 
BELGIAN Conao. — Stanleyville, four males, as prey of Bembix bequaerti 
Arnold var. dira Arnold (H. Lang and J. P. Chapin). 
Head and thorax black, clothed with pale ochreous hair, denser on the under side and on 
the sides of the dorsum. First three abdominal segments ochreous; the remainder more brown- 
ish; the hind borders narrowly fringed with ochreous pubescence. Antennae dark chocolate 
brown; palpi and legs brownish black. Wings slightly infuscated throughout, with a somewhat 
yellowish tinge. Length, 12.5 to 13 mm. 
Both sexes are colored alike. 
S. gravott is known from Southern Nigeria, Cameroon, and the French and 
Belgian Congo. 
Metaphara Enderlein 
Metaphara Enderlein, 1922, Mitt. Zool. Mus. Berlin, X, 2, p. 342; 1925, loc. cit., XI, 2, p. 325. 
Type by original designation: Pangonia multifaria Walker, 1848. 
This genus is characterized by Enderlein as follows. No ocelli. Fork of 
third longitudinal vein with appendix. First posterior cell closed before the 
margin. Third antennal segment composed of five divisions only. Proboscis 
longer than the head; palpus very short, pointed and slender. He includes 
in it, besides the genotype, also Pangonia thoracica Wiedemann, 1828. If these 
two species, which are both South African, actually show the above characters, 
they may form a valid genus. Since neither of them is known to me, I am 
provisionally following Enderlein. 
Philoliche Wiedemann 
Philoliche Wiedemann, 1828, ‘Aussereurop. Zweifl. Insekten,’ I, p. 95. Type by designation of 
Coquillett (1910): Tabanus rostratus Linnaeus, 1764. 
Nuceria Enderlein, 1922, Mitt. Zool. Mus. Berlin, X, 2, p. 339; 1925, loc. cit., XI, 2, p. 281. Type 
by original designation: Tabanus rostratus Linnaeus, 1764. Not Nuceria Walker, 1850. _ 
