Singapore. Inhabits also Java?
57. ERISTALIS SINGULARIS, n. s., fœm. Ater, aristâ nudâ, pedibus
posticis subincrassatis, tibiis anterioribus basi testaceis, alis
subcinereis apud costæ medium nigricantibus.
_Female._ Deep black. Head shining in front. Arista bare. Legs
shining; hind femora rather thick; hind tibiæ slightly dilated;
anterior tibiæ pale testaceous towards the base. Wings greyish, with
a blackish tinge along the middle of the costa; veins black. Length
of the body 4 lines; of the wings 8 lines.
Singapore.
Gen. HELOPHILUS, _Meigen_.
58. HELOPHILUS INSIGNIS, n. s., fœm. Nigricans, capitis lateribus
anticis pectorisque fasciis duabus testaceis, antennis ferrugineis,
thoracis vittis quatuor, scutello abdominisque fasciis tribus
luteis, hujus marginibus subchalybeis, tibiis fulvis apice
nigricantibus, alis subcinereis basi subluridis apud costæ dimidium
apicale fuscescentibus.
_Female._ Blackish. Head pale testaceous on each side in front.
Antennæ ferruginous. Thorax with four luteous stripes. Pectus with a
testaceous band on each side. Scutellum luteous. Abdomen with three
luteous bands; 1st broad, interrupted; 2nd narrower than the 1st,
broader than the 3rd; hind borders of the segments slightly
chalybeous and shining. Tibiæ tawny, with blackish tips. Wings
slightly greyish, with a lurid tinge at the base, and a slight
brownish tinge along the costa beyond the middle; veins black, tawny
towards the costa. Halteres testaceous. Length of the body 8 lines;
of the wings 14 lines.
Singapore.
Gen. XYLOTA, _Meigen_.
59. XYLOTA CONFORMIS, n. s., fœm. Ænea, capite femoribusque chalybeis,
antennis fulvis, thorace testaceo-bivittato, abdominis fasciis
duabus latis interruptis pedibusque testaceis, alis subcinereis.
_Female._ Æneous. Head chalybeous, with whitish tomentum in front,
with short white hairs beneath. Proboscis black. Antennæ tawny;
arista bare. Thorax with two testaceous tomentose stripes. Pectus
with a testaceous band on each side. Abdomen with two broad
interrupted testaceous bands. Legs testaceous; femora chalybeous;
tarsi with brownish tips. Wings slightly greyish; veins black;
stigma brown. Halteres testaceous. Length of the body 5 lines; of
the wings 10 lines.
Singapore.