in the Collection of W. W. Saunders, Esq. 147 



Geron ? tenue. 



Mas. — Nigrum, gracile, proboscide arcuato, antennarum articulo 

 3° lanceolate, pedibus fulvis, tarsis nigris, alls subcinereis, 

 venis nigris, halteribus fulvis. 



Male. — Black, slender ; proboscis curved, more than half the 

 length of the body ; third joint of the antennae lanceolate ; legs 

 tawny, rather long and slender ; tarsi black ; wings greyish ; 

 veins black ; halteres tawny. 



Length of the body 2| lines ; of the wings 5 lines. 



Country unknown. 



Fam. 8. SCENOPINID^. 



Two or three European and one African species are all that are 

 yet known of the Scenopinidce. 



Fam. 9. EMPID^. 



This family is, as yet, not much known beyond Europe, where 

 the species are about 400 in number, while in the rest of the 

 world hardly more than thirty have been recorded. The genera 

 are all European, with the exception of the Eriogaster, Macq., 

 Aplomera, Macq., and Niconia, Walk. The type of the latter is 

 Empis penthophora, Wied. 



Genus Empis, Linn. 



Empis reciproca. 



Fam. — Cana, puboscide fulvo apice nigro, antennis nigris, 

 thorace vittis tribus cinereis, abdominis apice sub-compresso 

 sub-attenualo, pedibus fulvis pilosis, alis cinereis. 



Female. — Hoary ; proboscis tawny, black at the tip ; antennae 

 black ; thorax with three dark cinereous stripes; abdomen slightly 

 attenuated and compressed towards the tip; legs tawny, pilose; 

 wings grey, veins black, testaceous at the base ; halteres testa- 

 ceous. 



Length of the body 2 lines ; of the wings 4 lines. 



United States. 



I, 2 



