OCR Text |
Show 1882.] MR. W. L. DISTANT ON UNDESCRIBED CICADID.E. 127 portion of venation ochraceous, costal area fuscous, anastomoses infuscated. The rostrum just passes the apices of the posterior coxae ; face with the sides transversely striated, its width about equal to the distance from its lateral margin to inner margin of eyes; opercula not covering the apical margin of metasternum, with their posterior margins broadly rounded. Long. 21 millim.; exp. tegm. 65 millim. Hab. Australia, Peak Downs. (Mus. Godeffroy; coll. Dist.) TIBICEN WILLSI, n. sp. (Plate VII. figs. 4, 4a, 4b.) 2 • Body above black. Head with the apex of face testaceous, the ocelli red. Pronotum with three large and confluent ochraceous spots on each side, somewhat narrowly separated at centre, and almost extending to lateral margins. Mesonotum black, with two very obscure obconical spots ; basal cruciform elevation dull ochraceous. Abdomen black, with the apical segmental margins testaceous ; anal appendage obscure pitchy-testaceous. Underside of body and legs pale testaceous ; head between face and eyes black ; lateral margins of sternum spotted with fuscous, and a lateral abdominal segmental row of transverse spots of the same colour. Tegmina and wings pale hyaline; tegmina with the venation fuscous, the costal membrane, basal and claval areas ochraceous, transverse veins at base of second aud third apical areas, with connecting portion of longitudinal vein, infuscated ; wings with the basal and claval areas ochraceous. The face is very convex, narrowly and longitudinaly sulcated, the sides transversely striated, rostrum reaching the posterior coxae ; posterior lateral angles of pronotum somewhat acutely ampliated and produced. Long. 20 millim.; exp. tegm. 53 millim. Hab. Australia, Peak Downs, Sydney. (Mus. Godeffroy; coll. Dist.) I have been enabled to examine nine specimens of this distinctly marked species, all of which, however, were females. In general appearance these have a superficial resemblance to thegenus Melampsalta. [Since writing the above I have discovered one male specimen of this species in the Godeffroy collection, which was received from Sydney. The opercula are pale ochraceous, with somewhat paler margin, and about reach the base of the first abdominal segment, they are slightly directed inwardly, the inner margins rounded and produced, but considerably apart, and the posterior margins wide and very slightly rounded.] TIBICEN GILMOREI, n. sp. (Plate VII. figs. 8, 8a, 8b.) cS • Body above dull testaceous. Head castaneous, the vertex somewhat darker than the front, area of the ocelli blackish. Pronotum with a central fuscous longitudinal fascia which has a very wide and triangular base, hind margin fuscous, with the posterior edge |