THE CANADIAN ENTOMOLOGIST. 159 



in both sexes. No median macrochzetct^ on first abdominal segment. 

 Front claws of male longer than others. 



Mesenibrioniintho compressa, new species. 



Length of body 6.75 to 8.5 mm.; of wing 5.25 to 6.75 mm. 

 One male and one female, Hamilton, Upper North Pine, Queens- 

 land. Jany. 1890 (Dept. of Mines and Agriculture). The female 

 is the smaller. 



Black, silvery pollinose. Frontalia and first two antennal joints 

 dark brown; third joint dusky, with a silvery bloom. Palpi fulvous, 

 obscurely infuscate basally in female. Thorax silvery; with four 

 linear vittae, the middle ones stopping at suture; the outer ones 

 oblitei^ated anteriorly by a heav^^ broad vitta on each side, the 

 two being confluent on anterior edge of thorax. Scutellum blackish. 

 First abdominal segment, apical half of second and more than 

 apical half of third shining black, not pollinose; rest of abdomen 

 silvery-white pollinose. Legs blackish; femora brownish, silvery 

 on outside, especially front pair. Wings lightly yellowish-smoky. 

 Tegulae watery-whitish. 



Holotype—No. 19975 U. S. N. M., male. 



Parabrachelia, new genus. 



Genotype, Masicera rufipes Mcq., 1847, Dipt. Exot. Suppl. 

 n, ^6, Tasmania. Brauer, Sitz. Ak. Wiss. CVI, 339. 



Differs from BracJielia as follows: Male only. Cheeks broad. 

 Proboscis short, palpi slender. Apical cell closed in margin, cubitus 

 without stump. Hind tibiae not ciliate. Parafacials broad, bare. 

 Ocellars present, proclinate. Male claws elongate. Abdominal 

 macrochaetse discal and marginal. Apical cross-vein straight. 

 Eyes thickly hairy. Epistoma prominently produced. Apical 

 scutellar bristles erect, delicate, not decussate; the laterals very 

 long and strong. Vertical bristles present. Second aristal joint 

 short. First abdominal segment shortened, hypopygium small. 

 Frontal bristles descending one-third way down the face. Third 

 antennal joint three times the second, which is not elongate. 

 Hind cross-vein only a little nearer to cubitus than to small cross- 

 vein. 



