474 Syrphidae. 



The length of the body is 20 mm or more ^ The pupa is also similar 

 to an EristaUs-ipupR, but, however, rather characteristic; it is thickest 

 a little before the middle, behind it is attenuated and flattened and 

 with the side margin marked as an edge; towards the anterior end 

 it is a little attenuated and rather flattened, and thus tliis end has 

 quite another shape than in the Eristalis-pupa.; the four horns are 

 present as in Eristalis, but on account of the shape of the anterior 

 end the prothoracal spiracles of the pupa lie longer behind the larval 

 spiracles than in Eristalis. The length of the pupa is 18 — 20 mm. 



The species of Mallota are large, strong and robust, more or less 

 Bee-like flies; they frequent Umbelliferæ and other flowers. 



Of the genus 5 species are known from the palæarctic region, 

 two belong to Mallota s. str. and three to Zetterstedtia ; one species 

 (of Zetterstedtia) is found in Denmark. 



1, M. cimbiciformis Fall. 



1817. Fall. Dipt. Suec. Syrph. 27, 18 (St/rphus). — 1822. Meig. Syst. 

 Beschr. III, 285,3 (Eristalis). — 1843. Zelt. Dipt. Scand. II, 663, 8 et 1855. 

 XII, 4652, 8 iSyrphus). — 1901. Verr. Brit. Fl. VIII, 552, 1, tig. 379. — 

 1907. Kat. palåarkt. Dipt. III, 114. — M. eri.ftaloides Loew, 1856. Neue 

 Beitr. IV, 17 et 43,35. — 1862. Schin. F. A. I, 343. — Imatisma posticata 

 Macq. (nec Fabr.; 1842. Dipt. exot. II, 126, 1, PI. XII. fig. 2. — M. posticata 

 1856. Loew, Neue Beitr. IV, 18. — 1862. Schin. F. A. I, 343. 



Male. Vertex rather large, black, slightly brownish just in front; 

 frons greyish pruinose behind, more yellowish at the sides anteriorly, 

 with a large, bare, black space above the antennæ; epistoma greyish 

 yellow pruinose with a bare, black middle stripe, not reaching the 

 antennæ, the lower lateral parts broadly black and also the extreme 

 mouth edge ; the epistoma is considerably hollowed below the antennæ, 

 with a moderate central knob, below which it is shghtly retreating, 

 the lower part a little prominent and a little descending. Vertex and 

 frons black-haired, epistoma with long, sparse, pale hairs at the sides. 

 Occiput brownish pruinose, whitish along the eye-margin on the lower 

 half, black above ; the hairs are whitish below, yellow above, but here 

 with many black hairs, and the short hairs on the middle part black. 

 Antennæ short, third joint higher than long with a tendency towards 

 an angle above ; the basal joints black or brownish, third joint brown ; 



^ Becher says: "Fussstummeln fehlen", he must thus have overlooked the spined, 

 proleg-like warts, though they are nearly as pronounced as in Eristalis; when 

 he says about Eelophilus that the chitinised apical part of the spiracular tube 

 in the larva seems to be wanting is this not correct, the HelophilusAarva has 

 the tube constructed quite as in the Eristalis-lavva.. 



