Rhynchota collected in Birara and Lifu. 333 



species that I have preferred to describe fully, as a 

 Tettigonia the following interesting form, which appears 

 to be so far unknown. Tettigonia in its wide sense is 

 practically cosmopolitan. 



T. willeyi, sp. n. 



Head, thorax, and abdominal sternites, rostrum and legs, testaceous, 

 abdominal tergites a little darker. A black elongate spot on each 

 side of the middle line of the head, at the junction of frons and 

 vertex almost meeting in the middle and extending laterally as far 

 as the antennal ledges ; also a black spot immediately posterior to 

 each ocellus reaching from thence almost to the base of the vertex. 

 Apical margin of pronotum medianly black, also a number of 

 blackish-brown spots on the anterior quarter of pronotum ; scutellum 

 with a sublateral longitudinal black stripe on each side. Tegmina 

 dark purplish brown, interior fourth of membrane hyaline, more or 

 less fumate. Wings purplish brown, fumate. Anterior intermediate 

 tarsi more or less fuscoUs, anterior tibial bristles black. Abdomen 

 above medianly blackish. Head triangular, sub-convex, apically 

 acutangular ; vertex and pronotum forming an obtuse angle at their 

 junction. Seen laterally, the head from base of eye to apex of vertex 

 is distinctly longer than the pronotum ; the antennal socket is 

 protected by a somewhat strong ledge, part of which is distinctly 

 visible from above, interrupting the curve of the head. Ocelli large, 

 about twice as far apart from one another as from the nearest eye. 

 Base of vertex roundly emarginate, carinately margined through its 

 entire breadth. Frons slightly swollen, the surface flattened, some- 

 what obsoletely granulate. Anterior tibise not (or exceedingly 

 slightly) dilated, not sulcate. First segment of posterior tarsi longer 

 than the other two together. Head and eyes scarcely so wide as the 

 base of pronotum. Vertex between the eyes two-thirds wider than 

 the eyes together. Pronotum quadrilateral, anterior margin rounded, 

 posterior margin slightly obtusangularly emarginate. Pronotum 

 obsoletely impressed transversely at its anterior third ; strong and 

 finely punctured (on posterior two-thirds at least). Elytra extending 

 far beyond apex of abdomen, apically rounded. 



£ . Male plates much longer than the idtimate abdominal segment, 

 apically angular, the extero-lateral margins rotundate basally, 

 obliquely subtruncate apically, provided with short bristles basally 

 near the lateral margins. Pygofers dark, more than twice as long as 

 the plates, bristly. 



$. Ultimate abdominal segment bisinuate apically, valves about 

 four times as long as the preceding, bristly. 



TRANS. ENT. SOC. LOND. 1905. — PART III. (OCT.) 23 



