DIPTERA. 
427 
(3. Proboscis subacuminate at apex, not labiate. 
20. Acyglossa, g. n. 
2. Arista more or less pilose 21. Hylemyia (R. D.). 
II. Eyes distant in both sexes. 
A. Lower calyptral scale concealed by the upper one. 
1. Arista nearly naked. 
a. Seventh longitudinal vein produced to posterior margin ; antennse 
inclined '. . . . 22. Chirosia (Rond,). 
(3. Seventh longitudinal vein abbreviated ; antennae suberect. 
23. SCHCENOMYZA (Hal.). 
2. Arista distinctly pilose, or plumose. 
a. Seventh longitudinal vein not produced to posterior margin. 
24. Chelisia (Rond.). 
j3. Seventh longitudinal vein produced to posterior margin. 
25. Mycophaga (Rond.). 
B. Lower calyptral scale more or less exposed. 
1. Wings shorter than abdomen j abdominal segments with the disk 
setose 2G. SYiLEGOPXERA (Rond.). 
2. Wings of ordinary length ; or abdominal segments not setose on 
the disk. 
a. Lower calyptral scale with its limb barely exposed. 
27. Oplogasteb (Rond.). 
(3. Lower calyptral scale longer than upper one. 
* Arista nearly naked or puberulous. 
a. Penultimate joint of arista rather long; inner transverse 
vein opposite apex of first longitudinal. 
28. Atherigona (Rond.). 
b. Penultimate joint of arista not elongate ; inner transverse 
vein opposite or beyond apex of second longitudinal vein. 
. 29. OiENOSiA (Meig.). 
t Arista distinctly pilose. 
a. Palpi not spathuliform .... 30. Caricea (R. D.). 
b. Palpi spathuliform 31. Lispa (Lat.). 
J£ydrot(ca includes 7 Italian species, 1 new, type dentipes (Fab.) ; Onodon- 
tha (Rond.), type ciliata (Fab.), with 3 species, 1 new ; Ophira with 2 spe- 
cies, type Icucostoma (Fall,); Brimeja^ 1 sp., liamata (Fall.) ; Polietes (Rond.) 
— Macrosoma (R. D.), 1 sp., lardaria (Fab.) ; Yetodesia (Rond.)j 27 species, 
8 new, type pallida (Fab.) ; Spilogaster, 22 species, 9 new, pagana (Fab.) ; 
Homalomya^ 13 species, 8 new, type canicularis (Linn.) ; Azelia, 5 species, 2 
new, type triquetra (Fall.) ; Limnophora^ 2 species, type compuncta (Wied.) ; 
Jlydrophoria, 5 species, 1 new, type conica (Fall.) ; Lasiops {—Thricops and 
ThricopTiticuS) Rond.), 1 Italian species, anthomyinus (RorA..)=hirtula (Rond, 
nec Zett.) ; Anthojnyia, 18 species, 6 new, type pluvialis (Linn.) ; Achanti- 
piera (Rond.), 1 species, inanis (Fall.) ; Chorthojohila, 33 species, 16 new, type 
sepia (Meig.) ; Eriphia, 1 species, cinerea (Meig.) ; Ilylejnyia, 17 species, 7 
new, type strigosa (Fall.) ; Chirosia (Rond.), 1 species, alhimana (Wahlb.) ; 
Schamomyza, 1 species, litorella (Fall); Chelisia (Rond.), 1 species, monilis 
(Meig.) ; Mycophaga (Rond.), 2 species, 1 new, type fungoi'um (R. D.) ; 
Syllegoptera (Rond.), 1 species, ocypterata (Meig.) ; Oplogaster (Rond.), 2 
species, 1 new, type mollicula (Fall.) ; Alherigona (Rond.), 1 species, quadri- 
