1883.] MR. W. L. DISTANT ON THE CICADIDiE. 187 



2, Contributions to a proposed Monograph of the Homopte- 

 rous Family Cicadidte. — Part I. By W. L. Distant. 



[Keceiyed April 16, 1883.] 



(Plate XXV.) 



I have for some years studied this interesting family of insects 

 and collected materials for a monograph of the same; but finding 

 that the difficulties are more considerable than I anticipated, and 

 that such a work will still require much greater time to produce, I 

 propose from time to time to offer contributions towards a know- 

 ledge of the Cicadidse, hoping ultimately to publish a more or less 

 complete monograph of the whole family. The Society has already 

 (P. Z. S. 1882, p. 125) done me the honour of printing the results of 

 my examination of the species contained in the Godeffroy Museum 

 at Hamburg ; and the present paper is chiefly devoted to the collec- 

 tion in the Dresden Museum, including the species collected in 

 Celebes by Dr. A. B. Meyer, which are of considerable interest, 

 producing a somewhat remarkable new genus. I have added the 

 descriptions of a few species contained in my own and in the very 

 rich collection of Dr. Signoret of Paris, at the bulk of which I 

 am still working, and hope to give the result very shortly. By 

 the examination of these foreign collections, and more especially 

 by a comparison of the same with Walker's numerous types of his 

 indifferently described species in the British Museum, much necessary 

 and preparatory work will be effected. 



Zammara luculenta, n. sp. (Plate XXV. figs. 4, 4a, 46.) 

 cJ. Head ochraceous; the front greenish with the centre fuscous; 

 the vertex with the anterior margin and area of the ocelli fuscous. 

 Pronotum ochraceous, the posterior and lateral margins greenish, 

 with a fuscous T-shaped central spot near the anterior margin, 

 and a small central pale ochraceous spot near the posterior margin. 

 Mesonotum greenish, with two obconical central spots on anterior 

 margin, which are ochraceous and broadly and transversely marked 

 with fuscous, followed by a W-shaped fuscous fascia which is 

 situate immediately before the cruciform elevation, which is more 

 or less ochraceous. Abdomen above reddish ochraceous, the disk 

 and lateral margins longitudinally suffused with fuscous. Under- 

 side of head and thorax, legs and opercula greenish ; abdomen 

 beneath reddish ochraceous, with the posterior margin of the pen- 

 ultimate segment fuscous. Tarsi ochraceous, the claws fuscous. 

 Rostrum greenish ochraceous, the tip pitchy and reaching the base 

 of abdomen. Teumina and wings pale hyaline, their bases narrowly 

 reddish ochraceous, and the venation with the basal half greenish, 

 the remainder ochraceous. The face is long, moderately convex, 

 distinctly transversely striated, but without a longitudinal sulcation ; 

 the opercula are small and obliquely rounded, the tympanal orifices 



