I2. 
13. 
I4. 
16. 
7. 
18. 
FAM. EMPIDIDZE 
ciliate with long hairs; femora mot remarkably. bristly ;. one 
fresutural dorsocentral ; antenne apparently two-jointed ; ulvilli 
small ; : S 
. The two casal cells " lle same DU. eyes oh or quite 
contiguous in. part; legs slender and. simple, neither the middle 
mor ihe hind libie spurred ; discal brislles of thorax varely 
present. . CRUISER MANEERIKSNIS NT Tee) arces c: 
First basal cell evidently shorter than the second ;-eyes sepavated at 
least on the front : if the basal cells are equal the middle femora 
and tibie are seriately setulose beneath . ; 
Anal cell. completely wanting ; sides of the front t PR i: 
basal cells short ; third joint of the antenne with a dorsal arista; 
one pair of comverging jreocellar bristles; arista. geniculate 
(PI. 4, Fig. 32) . z V MS 
Anual vein aud sometimes anal. crossvein Drei; basal cells long ; 
last segments of the female abdomen lengihened ; third. joint. of 
the antenne lanceolate and with a terminal arista . Briss 
Anal crossvein present, wings slender, the anal angle much reduced ; 
eyes bare; palpi minute; eyes contiguous on the front . 
Anal crossvein. absent, wings broad, the anal amgle large; eyes 
jubescent ; front and. face linear ; antenne two-jointed, arista 
thickened ; scutellum large and ftat (Pl. 4, Fig. 33) . 
Anal cell more or less formed ; sides of the front parallel or slightly 
diverging ; arista terminal ; middle femora strongest and. with 
two rows of flexor denticles or setule; middle tibig with one row 
of flexor denticles and ending in a more or less sharp spur; 
jleure usually largely pollinose; thorax longer than broad  . 
Anal cell completely wanting ; front femora stronger than the middle 
femora, the middle femora rarely armed ; thorax scarcely or not 
longer than broad . 
. Last tarsal joint short aud po ( PI. 4, Fig. 30) 
Last joint of the front and middle tarsi greatly lengthened.—.. 
Arista dorsal, the antenne apparenily two-jointed, the. last joint 
minule; eyes contiguous below the antenne, sides of the front 
usually parallel (Pl. 4, Fig. 37) 
Arista terminal or sublerminal, antenne three-jointed ; eyes more 
or less separated below. the antenne, sides of the front. usually 
diverging above i 
More or less yellow species; first section of. the costa. with longer 
cilia than on the. following sections; legs slender; antenna hori- 
. &ontal, (he second joint. without a se(a beneath ; hind. tibie with 
an extensor brisile and apical spur . TEE ONU 
Black species; cosla umiformly  short-ciliate; antenne | directed 
obliquely upward . : En PUENTE I. 
Third antennal joint lanceolate, the arista relatively short ; middle 
segments of abdomen laterally with flattened setule ; ings oval. 
271 
Genus CuEnsopRoMwiA, Walker. 
i2: 
14. 
Genus MicnEuPIs, nov. gen. 
T3; 
Genus SyMBALLOPHTHALMUS, Becker. 
Genus MEGAGRAPHA, nov. gen. 
Genus PrATYPALPUS, Macquart. 15 
16. 
Subgenus PrarYvPALPUS, Macquart. 
. Subgenus CrrPropnowiA, Corti. 
Genus SmiLPoN, Loew. 
Genus Dnarzris, Meigen. 17. 
18 
19. 
Subgenus Er4PHROPEZA, Macquart. 
