MALLOTA. 



219 



Gexottpe, Syrjihus fuciformis, Fabr., by designation of 

 Kondani, loc. cit. 



Allied to Merodon, but differing in the absence of any process 

 below the bind femora, thongb a clump of bristles is present. 

 Atiteume with :3rd joint deeper than long, placed on a prominence; 

 face cut. away considerably below this ; central knob and upper 

 mouth-edge moderately productKl. Eyes bare or hairy, geneivally 

 coi\tiguous in d" in bare-eyed species, rather widely separated m 

 forms with pubescent eyes." Abdomen short and rounded, or rather 

 long with nearly parallel sides. Le</s strong, hind femora much 

 thickened and curved ; hind tibi* considerably thickened and 

 flattened. Wings as in flelophihis. 



liancfe. Europe, Siberia. Orient, North and South America. 



Life-Jiistor)/. M. eristaloides, Loew, a European species, lives 

 during the larval stage in hollows in white poplars and other 

 trees. 



Some variation is prevalent in this genus in the degree of 

 separation of the eyes in the d, of the pubescence or bareness 

 of the eyes, and 'of 'the incrassation of the hind femora ; all of 

 which seems to suggest the advisability of keeping all the species 

 under one genus. The Palsearctic Catalogue (Kertesz) is iiere 

 followed in treating Imatlsma as a synonym of Mallota. Macquart 

 distinguished the former, which is unknown to me. principally by 

 a difference in the 6 genitalia. 



'Table of K^j^eries. 



Thorax pale yellow : sides of abdomen witli 



whitish pubescence ; anterior cvoss-vein 



very much beyond middle of discal cell . . orientalis, Macq., p. 21l». 

 Thorax dull black; sides of 2nd abdominal 



segment with bright orange-yellow Lairs ; 



anterior cross-vein exactlv at middle of 



discal cell ' mjipes, Brun., p. 220. 



172. Mallota orientalis, Macq. 



Iinatisma orientalis, Macquart, Dipt. Exot. ii. 2, p. 69, c? (1842). 



(S. If end twice as broad as lonjr. Frons in S very narrow 

 but not linear. Face greatly excavated below antenna?, receding 

 in profile nearly as far back as the eye, descending distinctly below 

 eye in profile, black, with yellow tomentum at sides. Antenna) 

 black, ;3rd joint rounded, arista tawny, sub-basal. Eyes bare. 

 Thorax subquadrate, pubescent, pale yellow; scutellum com- 

 paratively small (according to the figm-e), black, with yellow 

 pubescence. yl/)(?o?»c?i shining black; 1 3t segment, anterior part 

 of iJnd and anterior margin of 3rd with whitish pubescence ; 2nd 

 segment as wide as .'3rd; hind borders of segments with black 

 hairs. Sides of abdonuMi \\ith w hitish pubescence. Aw-.'/.s- bl:udv ; 



