110 CR. Osten Sacken: Diptera 



sides, if it had been the same species, Mr. Walker would probably 

 have identified it. 



L. Phalaris has the antennae of an Andrenosoma, without having 

 the coloring, nor the other characters of that genus, 



Laphria pseudolus n. sp. $. Altogetlier reddish-fulvous; 

 the darker color of the thoracic dorsum hardly visibte under red- 

 dish pollen and pile; legs yellowish red; wings uniformly light 

 hrownish-fulvous. — Length 22 mm. 



Antennae rufous, third Joint linear, brownish at tip; mystax golden- 

 yellow; proboscis rufous; thoracic dorsum with three broad, subconfluent, 

 very indistinct darker stripes, almost concealed under a brownish-gray 

 pollen and a dense rufous pile; lower part of pleurae and coxae golden- 

 sericeous ; the black mesosternum is covered with yellowish pollen. Ab- 

 domen uniformly rufous, with rufous pile. Legs yellowish -red; hiud 

 femora with a brown spot on the underside, not far from the coxa. 

 Wings uniformly light brownish -fulvous; first posterior cell slightly 

 attenuated at the end; the crossveins closing the discal and fourth pos- 

 terior cells are parallel, although not in a line. — A single male. 



NB. I doubt that the brown spots on the underside of the bind 

 femora are an essential character. 



Laphria scapularis Wied. A. Z. I, 516. Agrees with the 

 description, but is larger. — Two females, in one of whom the two 

 crossveins (closing the discal and the fourth posterior cells) are not 

 exactly in a line; nevertheless I believe it to be the same species. 



Laphria sp. Exactly like the preceding, but the face with a 

 bright reddish -golden mystax. Two males; in one of them the two 

 crossveins (see above) form a straight line, in the other they are 

 separated by a short interval. Is not the golden mystax a merely 

 sexual character? Both Wiedemann and v. d. Wulp have described 

 only females of L. scapularis. 



Laphria sp. determined by Mr. Walker L. dissimilis DoL? 

 A Single, damaged male. I possess an original colored drawing of 

 L. dissimilis by Doleschall, and believe it to be a different, although 

 closely resembling, species. 



Laphria, three species, represented by single specimens. 



Maira sp. A small, greenish-metallic species, with a golden 

 face. A Single specimen. « 



