FROM NEW GUINEA. 107 



scutello spinis piceis, abdominis lateribus rufescentibus, tibiis tarsis- 

 que fulvis apice nigris, alis cinereis basi luridis striga costali nigra, 

 halteribus testaceis. 

 Male and Female. Deep black, dull. Antennae tawny towards the base, 

 much shorter than the breadth of the head. Scutellum with two 

 piceous spines. Abdomen reddish along each side. Tibiae and tarsi 

 tawny, the latter with black tips. Wings cinereous, with a lurid tinge 

 towards the base ; a black streak along the middle part of the costa > 

 veins black; halteres testaceous. Female. Head shining. Length 

 of the body 4 lines ; of the wings 7 lines. 



16. Stratiomys parallela. Mas. Nigra, antennis basi rufescen- 

 tibus, thorace vittis quatuor, scutelli margine postico pectorisque ma- 

 culis quatuor albidis, abdomine fulvo vitta dorsali lata nigra biasi dila- 

 tata, genibus tarsisque fulvis, alis limpidis, halteribus albidis. 



Male. Black. Head reddish on each side of the mouth. Antennae with 

 the first and second joints reddish ; scape lanceolate, a little longer 

 than the first and second joints together. Thorax with four whitish 

 slender stripes ; hind border of the scutellum whitish, with two whitish 

 spines ; pectus with two whitish spots on each side. Abdomen tawny, 

 with a broad black dorsal stripe, which is dilated at the base on each 

 side. Tarsi, except towards the tips and knees, tawny. Wings lim- 

 pid; veins pale tawny ; halteres whitish. Length of the body 6 lines ; 

 of the wings 9 lines. 



Gren. Sargus, Fahr. 



17. Sargus fortis. Mas. Niger, antennis testaceis, scutelli margine 

 postico spinisque quatuor albis, pedibus albidis, tibiis tarsisque anticis 

 nigricantibus, femoribus tibiisque posterioribus piceis, alis cinereis 

 apice nigricantibus, halteribus albidis apice nigris. 



Male. Black, shining ; closely allied to S. tenuis. Antennae pale testa- 

 ceous ; third joint round; arista black, very slender, about twice the 

 length of the antennae. Thorax a little narrower in front ; scutellum 

 prominent, with a white hind border and with four white spines. Ab- 

 domen rather longer than the thorax. Legs whitish; fore tibiae and 

 fore tarsi blackish ; posterior femora and tibiae piceous, except towards 

 the base ; posterior tarsi with black tips. Wings cinereous, blackish 

 towards the tips, this hue darkest and most extensive along the costa ; 

 veins black, whitish at the base; halteres whitish, with black tips. 

 Length of the body A\ lines ; of the wings 8 lines. 



Gen. EuBA, Walk. 



18. RuBA OPPONENS. Mas. Testacea, antennis nigris basi testaceis, 

 abdomine nigi'o, tarsis anterioribus piceis, tarsis posticis nigris, alis 

 nigricantibus postice fuscis, halteribus testaceis. 



Male. Testaceous, with pale pubescence. Antennae shorter than the 



