COLLECTED IN BOENEO. 119 



micante, alis nigricantibus dimidio apicali oblique limpido guttis duabus 

 (una anteriore exteriore, altera posteriore interiore) nigricantibus. 

 Very nearly allied to A. bimacula, Walk. Male. Blackish-piceous, with a 

 few grey and black hairs. Abdomen black, brilliant silvery towards the 

 tip. Wings obliquely blackish for half the length from the base, the 

 blackish part very irregular in outline, and extending to f ths of the length 

 of the costa; one blackish dot on the basal angle of the fore fork of the 

 cubital vein, the other on the hind end of the veinlet between the 2nd and 

 3rd externo-medial veins ; veins black. Halteres with whitish tips. Length 

 of the body 4 lines ; of the wings 11 lines. 



77. Antheax Satellitia, n. s. (Group 10. Dipt. Saund. 167), mas. Atra 

 vix pilosa, alis nigricantibus plus triente apicali suboblique limpida guttis 

 tribus discalibus unaque apicali nigricantibus. 



Male. Deep black, hardly pilose. Wings blackish, obliquely limpid for more 

 than one-third of the length from the tips ; the outline of the blackish 

 part slightly denticulate ; the limpid part containing four blackish dots, 

 three, discal and one apical, the middle discal dot much larger than the 

 two others. Length of the body 3 lines ; of the wings 8 lines. 



Fam. DOLICHOPID^E, Leach. 



Gten. Psilopus, Meigen. 



78. Psilopus apicalis, Wied. Auss. Zweifi. ii. 227. 32. 

 Inhabits also Sumatra. 



79. Psilopus robustus, Walk. See page 16. 



80. Psilopus tenebrosus, Walk. See page 16. 



81. Psilopus allectans, n. s., mas. Laete cyaneo-viridis, antennarum arti- 

 culo 3° fulvo, arista longissima apice albida, abdominis segmentis atro- 

 fasciatis, pedibus testaceis, tarsis nigricantibus, alis obscure fuscis postice 

 pallidioribus, venis halteribusque nigris. 



Male. Bright bluish-green. Proboscis testaceous. Third joint of the an- 

 tennae tawny ; arista longer than the body, whitish at the tip. Abdomen 

 with deep black bands. Legs testaceous j tarsi blackish, paler towards the 

 base. Wings dark brown, paler along the hind border ; veins and halteres 

 black ; fore branch of the praebrachial vein nearly straight ; discal trans- 

 verse vein curved outward. Length of the body 3 lines ; of the wings 

 5 lines. 



82. Psilopus alliciens, n. s., mas. Laete cyaneo-viridis, facie pectoreque 

 argenteo-tomentosis, antennis testaceis, articulo 3° lanceolato, arista vix 

 longa, abdominis segmentis atro-fasciatis, pedibus testaceis, alis sublimpidis, 

 venis halteribusque testaceis. 



Male. Bright bluish-green. Face and pectus with silvery tomentum. Pro- 

 boscis testaceous. Antennae testaceous ; 3rd joint lanceolate j arista black, 

 less than half the length of the body. Abdomen with broad deep black 

 bands, partly aeneous towards the tip. ' Legs testaceous ; tarsi darker 

 towards the tips. Wings nearly limpid ; veins and halteres testaceous ; 

 fore branch of the praebrachial vein much curved ; discal transverse vein 

 undulating. Length of the body 3£ lines ; of this wings 6 lines. 



