COLLECTED IN BOENEO. 121 



3° longi-conico, arista vix longa, abdomine Isete viridi segmentis cupreo- 

 fasciatis, pedibus nigris, tibiis testaceis, alis subcinereis, venis nigris, hal- 

 teribus testaceis. 

 Female. Bright greenish-blue, short, broad. Vertex piirple. Face and 

 pectus with wliitish tomentum. Proboscis black. Antennse black ; 3rd 

 joint elongate-conical ; arista about half the length of the body. Abdomen 

 bright green, with cupreous bands. Legs black ; tibiae testaceous. Whigs 

 greyish ; veins black ; fore branch of the prEebrachial vein very much 

 curved ; discal transverse vem almost straight. Halteres testaceous. 

 Length of the body 1^ line ; of the wings 3 Unes. 



88. PsiLOPUS BEEELICTTJS, n. s., mas. Lset^ cyaneo-viridis gracihs, meta- 

 thorace purpureo, abdomine Isete viridi segmentis cupreo-fasciatis, pedibus 

 paUide flavis, ahs sublimpidis venis nigris, halteribus testaceis. 



Male. Bright bluish-green, slender. Head wanting. Metathorax purple. 

 Abdomen bright green, with cupreous bands. Legs pale yellow. Wings 

 nearly Umpid ; veins black ; fore branch of the prsebrachial vein ahnost 

 rectangidar ; discal transverse vein straight. Halteres testaceous. Length 

 of the body 1| line ; of the wuigs 3 lines. 



Gren. DoLiCHOPUS, Latr. 



89. DOLICHOPTJS ELECTTTS, n. s., foem. Lsete vhidis robustus, capite antico 

 albo, antennis pedibusque nigris, thoracis margine aeneo, abdomine aeneo- 

 viridi macuhs laterahbus albo-tomentosis, tibiis spinosissimis obscure tes- 

 taceis apice nigris, alis fusco-cinereis venis nigris, halteribus fulvis. 



Female. Bright green, stout. Head white in front. Antennse black ; arista 

 rather stout. Thorax aeneous hi front and on each side. Abdomen dark 

 seneous-green, vrith spots of white tomentum along each side. Legs black ; 

 tibiae dull testaceous with black tips, veiy spinose. Wmgs brownish -grey ; 

 veins black ; praebrachial vein forming a very obtuse angle, nearly straight 

 from thence to its tip ; discal transverse vein straight, upright. Halteres 

 tawny. Length of the body 2\ lines ; of the wings 5 lines. 



90. DoLiCHOPtrs ailigatus, n. s., mas. ^neo-viridis sat gi-acUis, capite 

 argenteo, antennis nigi'is, pectore cano, abdomine obscure aeneo, pedibus 

 fulvis, tibiis subspinosis, tarsis nigricantibus basi fulvis, femoribus poste- 

 rioribus nigris, mediis apice fulvis, ahs fuscis sat latis venis nigris, halteri- 

 bus fulvis. 



Male, j^neous-green, rather slender. Head with silvery-white tomentum. 

 Antenna} black. Pectus hoary. Abdomen dark aeneous. Legs tawny j 

 tibiffi shghtly spinose ; tarsi blackish, tawny at the base ; posterior femora 

 black ; middle femora with tawmy tips. Wings brown, rather broad, 

 darker along the apical half of the costa ; veins black ; praebrachial vein 

 and discal transverse vem straight. Halteres tawny. Length of the body 

 2^ lines ; of the wings 5 hues. 



91. DOLiCHOPTTS COLLECTiTS, n. s., mas. Laete viridi-cyaneus gracilis, facie 

 perangusta, antennis nigris, abdomine cyaneo-purpm-eo, pedibus testaceis, 

 tibiis vix spinosis, femoribus posticis nigris, tibiis posticis nigricantibus 

 apice testaceis, alis subcinereis latiuscuhs apud costam fuscescentibus, hal- 

 teribus testaceis. 



