888 DIPTERA OF AUSTRALIA, 



two species of Amalopis hereafter described are the only examples 

 that have been recorded from any other country. The genera fall 

 into three groups, distinguished by the number of antennal joints 

 supported by peculiarities of alar-venation. 



Genus 25. Amalopis, Haliday. 



Amalojns, Hal., in Ins. Brit. Dipt. p. xv. 1856 ; Bophrosia 

 (ex parte), Rondani, Prod. I. p. 183, 1856; Crunobia^ Kolenati, 

 Wien. Ent. Mon. IV. p. 391, 1860; {%) Nasittrna, Wallengren, 

 Ent. Tidskr. Stockh. pp. 179 and 191, 1881 ; Amalopis, O.-'^'Siokew, 

 Mon. Dipt. N. Amer. lY. p. 260, pi. 2, f. 15 (wing), pi. 4, f. 30 

 (genitalia), 1869; Studies, II. p. 224, 1887. 



" Two sub-marginal cells ; five posterior cells ; discal cell 

 generally present, sometimes wanting ; the sub-costal cross-vein is 

 more or less anterior to the origin of the second longitudinal vein ; 

 the second sub-marginal cell is never longer (usually distinctly 

 shorter) than the first posterior cell ; the tip of the wing is rounded 

 in both sexes (not sinuate posteriorly as in Pedicia). Tibiae with 

 spurs at the tip ; empodia distinct ; ungues smooth. Eyes 

 pubescent ; front with a gibbosity behind the antennae ; the lattei- 

 16-jointed, short (not reaching much behind the collare when bent 

 backwards). Male forceps more or less club-shaped, with stout, 

 bran.ched horny appendages." (Osten-Sacken.) 



Ohs. — The length of the fourth posterior cell and position of the 

 great cross-vein in A. nigritarsis seem peculiar ; also the prsefurca 

 is unusually short. 



384. Amalopis nigritarsis, sp.n. 



^. — Length of antennae 0-050 inch ... 1*27 millimetres. 



Expanse of wings 0-380 x 0-090 ... 9-64 x 2-27 



Size of body 0-320x0-040 ... 8-12x1-01 



9. — Length of antennae 0-050 inch ... 1-27 millimetres. 



Expanse of wings 0-500x0-120 ...12-70x3-04 



Size of body 0-440x0-060 ... 11-17x1-54 



