324 Mr. W. L. DLstcUit on 



marginal angles of vertex, and the ocelli ocliraceous ; eyes 

 pale brownish. Pronotum with the margins, and a central 

 longitudinal fascia, on each side of which are discal curved and 

 transverse streaks, ocliraceous. Mesonotum with two central 

 fascia? thickened posteriorly, the lateral margins and basal 

 cruciform elevation (excluding anterior angles and central 

 margins) ocliraceous. Body beneath and legs ocliraceous, 

 femora streaked with castaneous ; a broad central fascia to 

 face, head beyond face, coxal fascia?, sternal spots and basal 

 angles of abdomen black. 



Tcgniina and wings pale hyaline, their bases very nar- 

 rowly ochraceous, the venation generally fa:?cous ; costal 

 membrane to tegmina ochraceous, with its outer margin 

 narrowly fuscous. Wings with the inner margin and outer 

 {ipical angle of claval areas infuscated. 



Female with the upper surface of the abdomen ornamented 

 with transverse central segmental black spots, and the two 

 terminal segments are not wholly bhick as in the male. 



Long., excl. tegm., (J $ 18 millira. ; exp. tegm. 47 

 millim. 



Hub. N.W. Australia, Roebourne. Austr. Mus., Syd., 

 and Coll. Dist. 



A distinct species, to be primarily distinguished by the 

 colour of the abdomen, the thoracic markings of the upper 

 surface, and the fuscous markings on the claval area of the 

 wings. 



Melampsalta rotunduta, sp. n. 



^ . Body above black and moderately greyisiily pilose. 

 Head with the anterior angles of vertex, an inlistinct central 

 linear basal spot, and the ocelli ochraceous. Pronotum with 

 the basal margin and some indistinct anterior and posterior 

 marginal spots ochraceous. Mesonotum with two central 

 linear and inwardly angulated fascia?, the lateral margins 

 and basal cruciform elevation ochraceous. Abdomen (exclu- 

 ding basal segment) with transverse ochraceous segmental 

 fascia?, and macularly marked with grey pilosity. Margins 

 of face, legs, and abilomen beneath ochraceous ; femoral 

 streaks and bases of tibiffi blackish. 



Tegmina and wings pale hyaline, the venation ochraceous, 

 becoming fuscous towards apex ; tegmina wide, arciied, and 

 rounded. 



Female. — From the specimen now before mc generally 

 paler in hue than the male. 



Long., excl. tegm., c? ? 14-15 millim. ; cxp. tegm. 31 

 millim. 



