Catalogue of the dipterous insects collected at Singapore and MalaccaWallace, Alfred Russel
Science
Catalogue of the dipterous insects collected at Singapore and Malacca
Wallace, Alfred Russel
Diptera -- Malacca; Diptera -- Singapore
_Female._ Black, rather broad. Head shining. Antennæ tawny, with a
pubescent white arista which is as long as the preceding part.
Thorax cinereous, with five black rays, three in front and one on
each side. Scutellum obconical, prominent. Abdomen nearly round,
cinereous, with three rows of black spots. Knees and the adjoining
part tawny; tarsi whitish. Wings limpid; veins testaceous. Halteres
whitish. Length of the body 3 lines; of the wings 5 lines.
Singapore.
Gen. PHYLLOPHORA, _Macquart_.
15. PHYLLOPHORA ANGUSTA, n. s., mas. Nigra, angusta, sublinearis,
antennis setaceis basi fulvis, thorace producto cinereo-bivittato,
pedibus testaceis, femoribus posterioribus suprà piceis, alis
cinereis, venis halteribusque fuscis.
_Male._ Black, narrow, nearly linear. Antennæ setaceous, tawny towards
the base, a little longer than the head. Thorax elongated, with two
cinereous stripes. Scutellum with four very minute spines. Abdomen
hardly broader and not longer than the thorax. Legs testaceous;
posterior femora piceous above. Wings cinereous; veins and halteres
brown. Length of the body 2½ lines; of the wings 4½ lines.
Singapore.
Gen. EUDMETA, _Wied._
16. Eudmeta marginata, _Fabr. Syst. Antl._ 63. 3. (Hermetia.)
Singapore. Inhabits also Java, Sumatra, and Hindostan.
Gen. MASSICYTA, n. g. (_Plate I. fig. 1._)
_Corpus_ longiusculum, sat angustum. _Caput_ transversum, breve,
thorace vix latius. _Antennæ_ graciles, thorace paullò breviores;
articulus 1^{us} linearis; 2^{us} longi-fusiformis, 1^o vix longior;
3^{us} acuminatus, minimus. _Thorax_ longi-ellipticus. _Abdomen_
obclavatum, subpetiolatum, thorace plus duplò longius. _Pedes_
graciles. _Alæ_ elongatæ, sat angustæ.
Body rather long and narrow. Head transverse, short, very little
broader than the thorax. Antennæ slender, a little shorter than the
thorax; 1st joint linear; 2nd elongate fusiform, very little longer
than the 1st; 3rd acuminated, very minute. Thorax elongate
elliptical. Abdomen obclavate, subpetiolated, a little more than
twice the length of the thorax. Legs slender. Wings rather long and
narrow; mediastinal, subcostal, radial and cubital veins, and median
veinlet of the usual structure; 1st, 2nd and 4th externo-medial
veins complete; 3rd abbreviated; subanal joining the anal at some
distance from the border; discal areolet irregularly hexagonal,
elongated, narrower towards the tip of the wing.
17. MASSICYTA BICOLOR, n. s., fœm. Nigra, antennis basi testaceis
apice albis, pectore scutelloque flavis, illo nigro bimaculato,
abdomine testaceo fasciato, pedibus flavis, femoribus anterioribus
tibiisque posticis fusco fasciatis, femoribus posticis nigris, alis
cinereis, apud costam subluridis.
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