frmi the Philipjnne Islands. 113 



Therevidae. 



Thereva lateralis (Esch. Entomogr.) Wied. A. Z. I, 231. As 

 Eschscholz's specimens came from the Philippines, and as this seems to 

 be a common species, the identification is a very probable one, although 

 there are some discrepancies; for instance the fourth abdominal segment 

 is entirely black, shining, and without any gray posterior margin, 



Thereva sp. A single female, very like the preceding in colo- 

 ring, but the fourth post. c. open and the front black, shining, except 

 its lower part, which is silvery. 



Empidae. 



FAaphropeza exul n. sp. Q. Black, shining; mesonotum with 

 microscopic grayish -yellow pile; pleurae and two basal abdominal 

 segments smooth and very shining; the remainder of the abdomen dark 

 brown. Proboscis ferruginous-brownish; palpi brown. Antennae: first 

 and second joints yellow; the tip of the latter and the third joint brown; 

 arista microscopically pubescent. Legs reddish-yellow, smooth; tarsi 

 somewhat brownish; hind metatarsus a little swollen. Halteres pale- 

 yellow. Wings with a slight brownish tinge, veins brown. Length: 2 mm. 



NB. I describe this species from a single, badly preserved specimen, 

 on account of the genus to which it apparently belongs. Elaphropeza 

 was hitherto represented by a single species, belonging to the north 

 of Europe. JE. exul seems to share all the characters of E. ephippi- 

 ata, as described and figured in Walker's Ins. Brit. Diptera, Vol. I, 

 Tab. V. f. 4. Above the antennae, the eyes are separated ( Q ) by a 

 space so narrow that it requires some attention to perceive it; below 

 the antennae, the eyes may be called contiguous for an interval equal 

 in lenght to the antennal scapus. The third antennal joint is shorter 

 than represented in the above-quoted figure; the arista, on the contrary 

 longer, about twice as long as the three joints of the antennae taken 

 together; seen from the side, the outline of the eye shows a sinus of 

 the lower occipital orbit not represented on the figure, and the inter- 

 val between the lower corner of the eye and the root of the proboscis 

 in broader; the tip of the first vein is beyond the middle of the wing; 

 that of the second nearer the apex than it is on the figure. None of 

 these difi"erences, it seems to me, has a generic importance. 



Sybos spec. Twe damaged specimens. 



Dolichopodidae. 



Psilopus vittatus Wied. A. Z. II, 217. Wiedemann had 

 only the female; although Macquart, D. E. II, 2, 116 describes the 



XXVI. Heft. I. 8 



