23G MR. walker's catalogue of dipterous insects 



end ; abdomen rather flat ; 5th, 6th, and 7th segments black ; wings 

 blackish and with black veins, limpid, and with ochraceous veins to- 

 wards the base. Length of the body 3k lines ; of the wings G lines. 

 27. Laphria puer, Dol. See p. 147. 



Subfam. Asilites, Walk. 



Gen. Trupanea, Macq. 



28. Trupanea complens, n. s. Mas et fcem. Nigra, capitis pilis 

 albis, antennarum articulo 3° fusiformi, thorace vittis tribus cinereis 

 latis indistinctis lineisque duabus testaceis, abdominis segraentis 

 ochraceo marginatis, feraoribus subtus tibiisque rufis, alis cinereis, 

 halteribus fulvis. Fam. Abdomine apicem versus styliformi. 



Male and Female. Black, horny beneath ; head thickly clothed be- 

 neath with white hairs ; epistoma very prominent ; mystax with 

 many black bristles ; 3rd joint of the antennae fusiform ; arista as long 

 as the three preceding joints; thorax with three broad indistinct cine- 

 reous stripes which are divided by two more testaceous lines, the latter 

 hue passing into cinereous towards the pectus ; hind borders at the 

 abdominal segments with ochraceous bands, which are most distinct 

 in the male ; femora red beneath ; tibiae red, with black tips ; wings 

 cinereous ; radial areolet with the usual slate-coloured disk ; veins 

 black, of the ordinary structure ; halteres tawny. Male. Abdominal 

 appendages rather large. Female. Four last abdominal segments 

 styliform. Length of the body 10-11 lines; of the wings 18-20 

 lines. 



Allied to T. strenua. 



Gen. AsiLUS, Linn. 



29. AsiLUS L^vis, U.S. Mas. Pallide testaceo-cinereus, sat gracilis, 

 parce pilosus, capite mystaceque albis, antennarum articulo 3° nigro 

 lanceolato, thorace vittis quatuor nigricantibus, abdomine nigro seg- 

 mentis pallido marginatis, pedibus halteribusque fulvis, alis cinereis 

 apice nigricantibus. 



Male. Pale testaceous-cinereous, rather slender, with very few hairs and 

 bristles ; head with shining white tomentum, which is very slightly 

 gilded in front ; epistoma flat ; mystax with several white bristles ; 

 mouth black, shining ; antennae tawny ; 3rd joint black, lanceolate, 

 a little longer than the 2nd joint ; arista a little longer than the 3rd 

 joint ; thorax with four blackish stripes, the lateral pair obliquely 

 interrupted as usual ; hind part with three elongated black spots ; 

 abdomen blackish, except the hind borders of the segments ; tip black, 

 shining, with very small appendages ; legs tawny ; tarsi piceous to- 

 wards the tips ; claws black ; wings cinereous, tips obliquely blackish ; 



