IG MR. WALKEll's CATALOGUE OF DIPTEROUS INSECTS 



testaceous. Anteimre black ; arista as long as the tliorax. Pectus white. 

 Abdommal segments with black bands. Legs long ; tarsi and tips of the 

 hind tibiffl black. Wings hinpid ; veins black ; fore branch of the prse- 

 bracliial vein shghtly cur\'ed ; liind branch extending to the border ; cUscal 

 transverse vein rather deeply undulating. Length of the body 4i lines ; 

 of the wings 8 lines. 

 Mount Ophir. 



50. PsiLOPUS EOBTJSTUS, n. p., fcem. Purpureo-cyaneus, capite purpureo, 

 facie pectoreque albis, anten)iis pedibus halteribusque testaceis, thorace 

 viridi-vario, abdominis fasciis nigris, tarsis apice nigricautibus, alis sub- 

 ciuereis. 



Female. Purplish- blue. Head bright purple, white in front. Proboscis and 

 antermise testaceoiis ; arista black, full as long as the thorax. Thorax green 

 on each side aud in front. Pectus white. Abdomen with black bands. 

 Legs long, pale testaceous ; tarsi blackish towards the tips. Wings shghtly 

 greyish ; veins black ; fore branch of the praebrachial vem moderately curved ; 

 discal transverse vein moderately uudulatmg. Halteres pale testaceous. 

 Lengtli of the body 2^ hues ; of the ^viugs G lines. 



This may be the female of P. clarvji. 



Singapore. 



51. PsiLOPrs SUBNOTATTTS, n. s., mas. Cyaneus, capite purpm-eo, facie pectore- 

 que albis, proboscide antennis pedibusque testaceis, thoracis lateribus anticis 

 viridibus, abdomine viridi-cyaueo basi apiceque pivrpurascente, tarsis apice 

 nigricautibus, ahs subcinereis albido-bifasciatis. 



Male. Blue. Head purple above, white m front. Proboscis and antennse 

 testaceovis ; arista black, ncai-ly as long as the thorax. Tliorax green on 

 each side in front. Pectus wliite. Abdomen greenish-blue, pm-]ilisli at the 

 base aud at the tip. Legs testaceous, rather long ; tarsi blackish towards 

 the tips. Whigs slightly greyish, with two imperfect whitish bands ; hind 

 border white towards the tip ; costa interruptedly blackish ; veuis black ; 

 fore branch of the prsebrachial vein almost straight ; liind branch extending 

 to the border ; discal transverse vein almost straight, hardly undidating. 

 Halteres pale testaceous. Length of the body %\ Imes ; of the wings 6 hues. 



Mount Ophir. 



52. PsiLOPTTS POSTICUS, n. s., mas. Vfridis, proboscide antennis abdominis 

 fascus pedibusque nigris, tibiis hu'idis, ahs nigris apud margmem postic 

 subhmpidis. 



JfaZe. Dark green. Head above bluish-green. Proboscis and antennae ' 

 arista nearly as long as the body. Abdomen with black bands. Legs black ; 

 posterior tibise lurid ; fore tibiae testaceous. Wings black, rather narrow, 

 nearly hmpid along the liind border ; veins black ; fore branch of the prse- 

 brachial vem shghtly curved ; discal transverse vein shglitly undulating. 

 Halteres black. Length of the body 2 Imes ; of the wuigs 5 lines. 



Malacca. 



53. PsiLOPtrs TENEBROSTTS, U.S., fcem. Purpureo-niger, facie pectoreque albis, 

 abdomine purpureo, pedibus ftilvis, femoribus apice tarsisque nigi'icantibus, 

 alis nigricautibus mnrgine postico fasciaque subhmpidis. 



