BY U. J. TILLYAKD. 365 



Wings: neu7-ation black, very open, costa yellowish outwards; 

 pterosiigma 2"5mm., black; membranuh 15 mm., dark brown. 

 Head: eyes green in the living insect; vertex hXauok; front dark 

 metallic blue, with two round creamy or pale yellow spots, close 

 together, placed well in front, and bordered on sides by a greyish- 

 brown patch; clypeus lilack, with two small central pale spots on 

 anteclypeus; labrum b'ack; labium brownish. Thorax black 

 with metallic greenisli-blue reflections, dorsal ridge creamy or 

 gieyish; on each side a broad continuous creamy lateral band, 

 and low down a small spot and larger subtriangular area of same 

 colour. Four distinct spots at iving-bases. Notum black, crossed 

 by the lateral band, scutella cieamy; legs black, part of profemora 

 brownish. Abdomen very slender, much pinched at 3, then 

 broadening to 6, 7-10 narrower (8 somewhat pinched in the speci- 

 men figured). Colour metallic Ijlack with creamy spots as follows 

 — 2, a pair of slanting points; auricles dark; 3-4, a pair of basal 

 dots and a pair of central dots; 5-7, a pair of central dots only; 

 8, two tiny points one-third from base; 9-10 black. (These dots 

 were either obliterated in the type-specimen, which was in poor 

 condition, or ehe not present). Appendages: superior 

 1-5 mm., slightly forcipate, hairy, a small spine on outer margin 

 close to bases, black; inferior nearly as long, broad 1}' truncate 

 (see Plate vii., figs. 12rt and b). 



2 A larger and stouter insect, with shorter and more cylin- 

 drical abdomen; liindwing 36 mm. Wings suffused all over with 

 russet-brown. Markings of head and thorax as in male but 

 yellow; spots of 6-8 generally obsolete; all spots pale yellow; 10 

 projecting below in a rounded hairy tubercle. Underside of 8-10 

 similar to that of M. virgula (Plate vii., fig. 2 3); no ovipositor. 

 Ajjpendages 1 mm., hairy, black, straight. 



Types: Coll. Tillyard, (^^(Kuranda, N. Queensland). 



Hab. — Northern Queensland; not uncommon; November to 

 March. 



The colouration reminds one of Syntheviis primigenia. Its 

 nearest ally is rather J/, brevistyla than M. guttata, for it agrees 

 with the former in possessing the four bright spots at wing-bases,. 



