On Diptera from South Africa. 89 
strie and often confluent. In R. bucculatus there is no trace 
of striae except adjoining the suture, and the punctures are 
separate. 
Rhysodes anguliceps, sp. n. 
Niger, nitidus, parum elongatus, capitis lobis intus non emarginatis, 
lateraliter post oculos acute productis, supra oculos arcuate cana- 
liculatis, elevatione mediana lata non ad loborum medium attin- 
gente; antennis longitudine mediocris; prothoracis lateribus 
antice valde, postice paulo, incurvatis, disco trisulcato, carinis 
duabus mediis latis ; elytris profunde punctato-striatis, humeris 
non dentatis; metasterno postice impresso, non sulcato, tibiis 
utroque bidentatis. 
¢, femoribus anticis minute dentatis; tibiis posticis apice laminato- 
productis. 
Long. 6°5 mm. 
Hab. 8. India, Malabar. 
Specimens of this are contained in the British Museum and 
and in the Hope Department at Oxford. It differs from all 
the other species known to me by the structure of the head, 
of which the posterior lobes, instead of being, as usual, more 
or less kidney-shaped, have a circular outline interrupted only 
at the sides of the head, where they are rather sharply pro- 
duced backwards. ‘The curved channel above the eyes on 
each side is also a very distinctive character. 
XV.—WNotes on Diptera from South Africa. 
By Miss Gerrrupe Ricarpo. 
{Concluded from vol. vi. p. 178.] 
Bombylida. 
Triplasius bivittatus, Loew, Neue Beitr. ii. p.7 (1855); id. 
Dipt. Siidafrik. p. 181 (1860). 
Loew described the female; this is probably the male. 
The dividing nerve, which forms three submarginal cells by 
joining the second longitudinal and the anterior branch of 
the third longitudinal vein, is only present on one wing. 
The dark spots on the hind part of the wing in Loew’s 
description are here rather reduced to dark shading of all 
the cross-veins, with the exception of the one spot in the 
apex of the first posterior cell and a faint one on the apex of 
