CICADIDAB. 



63 



apical one. These segments are supplied, as usual, with a few setae, up to half 

 a dozen on a segment, and sometimes as long as the segment itself. Between 

 these large setae the surface is bare of ordinary hairs. The fore femur and the 

 extremity of the abdomen in the last instar male nymph are shown in figs. 19, 20. 

 Length (length of head and thorax added to that of abdomen) 18-8 mm. 



One male specimen of B. exhausta from Apia (Buxton and Hopkins) has a 

 mass of hardened adhesive matter clogging its face and mouth-parts. It bears 

 the highly interesting explanatory label, " The value of latex to plants ! This 

 cicada tried to suck Carica papaya.'' 



B. hicolorata Dist. and B. schulzi, sp. nov., but, from his notes based on badly-preserved material 

 I doubt whether the third species is correctly recorded. His B. schulzi is said to be related to 

 B. viridicata Dist., of New Guinea, but judging from the description it is evidently much more 

 typical. The type of B. viridicata has almost opaque tegmina with the ambient vein almost 

 coincident with the margin, and greatly reduced opercula, which reach only half-way along the 

 meracanthus. In these three respects B. schulzi would seem more like B. exhausta and B. conviva. 

 Schmidt's new genus, Toxopeusella (I.e., p. 224) is apparently well-founded, although the geno-type, 

 Cicada stigma Walk., is represented in the British Museum only by the original female. The 

 cammon stem from the basal cell of the tegmen is not, however, M plus Cu as stated by Schmidt, 

 but M plus Cuj only. The statement that fore and hind wings are in T. stigma " quergerippt " 

 and in Baeturia not, is incorrect, as an examination of B. exhausta and B. conviva will show, though 

 this character is certainly more marked in T. stigma. 



Text-fig. 18. — B. famulus 

 Dist., aedeagus, lateral 

 view. 



Text- FIG. 19-22. — Fig. 19, B. exhausta Guer., last 

 nymphal instar, fore femur ; fig. 20, B. exhausta 

 Guer., abdominal extremity of last nymphal instar 

 of male ; fig. 21, B. exhausta Guer., apical antennal 

 segments of last nymphal instar of male ; ng. 22, 

 Moana expansa, apical antennal segments of last 

 nymphal instar of male. 



II. 2 



2 



