886 S. W. Wflli.-ifon — N'orth American Conopidm. 



nales de duvet blanc; epaules, cotes, bord posterieur et ecusson 

 testacos, a l<''gcr duvet blauc. Abdomen testace ; deuxieme, 

 troisieme et quartri^'me segments a band oblique de duvet blanc de 

 chaque cote ; les suivants converts de duvet blanc. Pieds testaces ; 

 jambes a duvet blanc en avant. Ailes a base fauve et extremite 

 brunatre. 



Du Texas, Galveston." 



Myopa longicornis Say. 



"Body black, hairy ; wings dusky, pale at base: antennje as long 

 as the head." 



"Antennae pale on the inner side and beneath ; hypostoma [face] 

 pale with a silvery reflection ; front and vertex dusky ; proboscis 

 black; thorax with two obsolete pale lines; wings blackish, pale 

 towards the base ; poisers whitish ; anterior pairs of feet with the 

 thigh beneath, at base and leg [tip], pale ; anterior pairs of tro- 

 chanters pale, with a silvery reflection; posterior feet, thighs pale on 

 the basal moiety ; abdomen clavate and hamate at tip." 



"Inhabits Missouri !" 



" Length about three-tenths of an inch." Say. 



Translation : " Blackish, abdomen on each side transvei'sely 

 spotted with white, legs leather-yellow, the femora black above. 

 Length, 2f lines. — From Pennsylvania." 



"Antennae black, on the lower border luteous. Face yellowish, 

 with silvery luster. Front yellowish brownish ; occiput nearly 

 hair-gray, on the upper border blackish. The thorax shows in cer- 

 tain reflections a broad hair-gray stripe, divided in its middle by a 

 linear black stripe; also the humeri and spots on the pleune have a 

 hair-gray luster. Abdomen blackish, with hair-gray glistening pos- 

 terior borders; second and third segments on each side behind with 

 a hair-gray s))ot, l)roader outwardly. Wings a little infuscated ; 

 halteres yellowish. Hind femoia on the basal half wholly leather- 

 yellow ; tibiae in the middle brown-blackish." Wiedemann. 



This species is unknown to me, but I believe it will be recognized 

 by the above descriptions. Wiedemann's geographical knowledge 

 of America was not always accurate; the species probably occurs in 

 the region east of the llocky Mountains. 



Myopa vicaria Walk. 



" FerriKjinea, capite fulvo, thoracis disco piceo, abdoinine macidis 

 cano-pubescentihus ornato, aiitennis pedibusque ferrugineis, tarsis 

 fulvls, alts fuloo cinereoqae variis, venis tranversis fusco nebidosis^ 



