LIST OF DIPTERA. 663 



pitchy : wings slightly gray ; wing-ribs and poisers tawny ; veins 

 black. Length of the body 2\ lines ; of the wings b\ lines. 



a. Massachusetts. From Prof. Sheppard's collection. 



Dolichopus contiguus, n. s., mas. Aureo-viridis, thorace viridi- 

 cyaneo, lateribus purpureo variis, abdomine cyaneo et cupreo va- 

 rio, antennis nigris, pedibus fulvis tarsis anticis apice nigris 

 latis, tarsis mediis piceis basi fulvis, tarsis posticis nigris, alis 

 limpidis. 



Head golden green, covered in front with pale tawny down : 

 eyes bright red: feelers black; third joint oval: chest greenish 

 blue, with a slight purple tinge on each side: abdomen golden 

 green, slightly bluish and coppery here and there : breast and under- 

 side of the abdomen covered with hoary bloom ; tip black ; appen- 

 dages tawny ; scales whitish : legs tawny ; four hinder hips mostly 

 green, and tinged with hoary bloom ; tips of fore feet black, much 

 widened ; middle feet pitchy, tawny at the base ; hind feet black : 

 wings colourless ; wing-ribs and poisers tawny ; veins pitchy, tawny 

 towards the base. Length of the body 2 lines; of the wings 

 4 lines. 

 a. New York. Presented by the Entomological Club. 



Dolichopus exclusus, u. s., fern. Cupreus, nonnunquam viridi va~ 

 rius, abdomine purpureo-cupreo, antennis nigris, articulo 1 ° sub- 

 tus fulvo , pedibus fulvis, tarsis nigris, alis subcinereis. 



Body coppery, sometimes varied with green : head covered in 

 front with white bloom : eyes red : mouth pitchy ; palpi tawny : 

 .feelers black ; first joint tawny beneath ; third joint oval, as long as 

 the first and the second : breast covered with gray bloom : abdomen 

 purplish copper-colour, covered beneath with gray bloom : legs taw- 

 ny ; hips coppery; fore hips mostly tawny; feet black: wings 

 slightly gray ; wing-ribs tawny ; veins black ; poisers pale tawny. 

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



c. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 

 G. Barnston, Esq. 



Dolichopus directus, n. s., fern. Cyaneo-viridis, abdomine aneo- 

 viridi, antennis fulvis, articulo 3° nigro, pedibus fulvis, tibiis 

 apice tarsisque piceis, alis subcinereis. 



Body bluish green, thickly covered with tawny bloom, beset 

 with black hairs and bristles : eyes red, fringed on each side with 

 white hairs : mouth dark tawny : feelers tawny ; third joint black ; 

 bristle black, as long as the head : disk of the chest shining : breast 



