Generic Position of certain Muscidaj. 3.il. 



p. 195. — New South Wales) is the male of Tachina ohtusa, 

 Walk. (Ti»s. Saund.— Diptera, pt. iv. 1852, p. 274..— New 

 South Wales). Uudor the latter name Walker professed 

 to describe both sexes, but the female alone is now to be 

 found in the Museum collection. It is quite possible that the 

 type of E. stolida is really the specimen previously desciibed 

 by Walker as the male of Tachina obtusa. This species 

 may be assigned provisionally and with doubt to the genus 

 Microtrupcsa, ]Maeq. There is uo noticeable keel on the 

 face, and in the female the third joint of the antennae is 

 somewhat s(juare and distinctly shorter than the second (the 

 antennae are wanting in the male), so that the species might 

 be regarded as belonging to the genus Fubricia. The head, 

 however, is rather wide, and. in an obviously closely allied 

 but undescribed species from Tasmania in the Museum 

 collection the third antenual joint is as long as or slightly 

 Ioniser than the second. In both species there is a row of 

 from six to eight small admedian macrocheetse on the margin 

 of the second abdominal segment, which are absent in 

 Microtropesa sinuata, Don., the typical species of the genus. 

 In general appearance, however, T. obtusa and the species 

 from Tasmania resemble Microtropesa more than Fabricia. 



Tachina despicienda (Trans. Ent. Soc. Lond. n. ser. v. 

 (1861) p. 305. — New South Wales) apparently belongs to 

 the "Section" Pyrrhosia, I3r. & v. Berg., but the condition 

 of the typical specimen is such that it is impossible to 

 determine the genus. Tue first posterior cell is closed at 

 ihe margin of the wing. 



Tachina hebes (Ins. Saund.— Dipt. pt. iv. (1852) p. 289.— 

 Tasmania) is not a female as stated by Walker, but the 

 male of Tachina densa [ibid. p. 288. — New South Wales). 

 The species apparently belongs to a new genus n;'ar Exorista, 

 Mg. The antennae are inserted above the level of the middle 

 of the eye; the face is broad and the frontal bristles descend 

 to the level of the arista, while a number of small bristles 

 descend still lower ; the facial ridges are ciliated on the 

 lower third; depth of jowls about one-third of that of t\\i 

 eye ; abdominal macrochsetie only marginal. 



Eurigaster tasmanice (Trans. Ent. Soc. Lond. n. ser. iv. 

 (1858) p. 197. — Tasmania) lielongs to a new genus, near 

 Frontina, Mg., " Section " Phorocera, Br. & von Berg. : — 

 Eyes hairy ; occllar bristles wanting; face hairy; oral margin 

 very prominent; abdominal raacrochaetae marginal ; claws in 

 male short, as in Frontina. The type is a male, not a female 

 as stated by Walker; the tip of the abdomen (last segment] 

 is dull, not " sliining " as stated in Walker's description. 



