20 
MB. WALKER’S CATALOGUE OF DIPTEROUS INSECTS 
talibus atria, thoracis vittis quatuor interruptis nigris, ecutelli margine ab- 
dominisque fasciis canis, alia subcinereis. 
Female. Cinereous, rather short and broad. Head hoary, silvery -white above 
and in front ; frontalia deep black, slightly widening from the vertex to the 
antennae ; facialia without bristles ; ep is tom a hardly prominent. Antennae 
extending to about three-quarters of the length of the face ; 3rd joint 
linear, slender, rounded at the tip, about twice the length of the 2 nd ; 
arista stout for about half its length, very much longer than the 3rd joint. 
Thorax with four slender interrupted black stripes 3 scutellum with a hoary 
border. Abdomen black, obeonieal, hardly longer than the thorax ; a broad 
hoary band on the fore border of each segment.. Wings slightly greyish ; 
veins black ; prsebraehial vein forming an almost right and rather well- 
defined angle from whence it is slightly curved inward to its tip ; diseal 
transverse vein hardly curved inward, parted by rather less than its length 
from the border and from the flexure of the pnebrachial. Alulse white. 
Length of the body 4 lines ; of the wings 8 lines. 
Mount Ophir, at the height of 4000 feet. 
Gen. Masicera, Macquart. 
68 . Masicera tomentosa, Macq. Dipt. Exot. Suppl. 2. 
Mount Ophir, at the height of 4000 feet. 
69. Masicera vicaria, n. s., foem. Nigra, longiuscula, capite albo, frontah- 
bus atris, thoracis vittis quatuor, lateribus scutello abdominisque fasciis 
duabus latis interruptis canis, alis einereis. 
Female. Black, rather long. Head white, with short white hairs beneath 
and behind ; frontalia linear, deep black ; facialia without bristles ; epistoma 
not prominent. Eyes pubescent. Antennae extending nearly to the epi- 
stoma ; 3rd joint linear, slender, slightly rounded at the tip, about four times 
the length of the 2 nd ; arista rather Btout for full one-third of the length 
from the base, very much longer than the 3rd joint. Thorax with four 
hoary stripes ; sides and scutellum hoary. Abdomen elongate- obeonieal, 
much longer than the thorax, with two broad interrupted hoary bands. 
Legs stout. Wings grey ; veins black ; praebrachial vein forming a rather 
obtuse angle at its flexure, from whence it is slightly curved inward to its 
tip ; diseal transverse vein undulating, parted by very little less than its 
length from the border and from the flexure of the prsebraeliial. Alulae 
whitish. Length of the body 5 lines ; of the wings 9 lines. 
Singapore. 
Gen. Eubigaster, Macquart. 
70. Eitrigaster muscoides, n. s., feem. Nigra lata, capite albido, frontali- 
bus nigris, palpis testaceis, thorace cano nigro-quadrivittato, scutelh apice 
fulvo, abdomine cano-fasciato, alis einereis apud costam fuscescentibus. 
Female. Black, broad, with long bristles. Head whitish j frontalia black, 
linear j facialia without bristles ; epistoma not prominent. Eyes pubes- 
cent. Palpi testaceous. Antennas extending to the epistoma j 3rd joint 
linear, rounded at the tip, full four times the length of the 2 nd ; arista 
