Mr. W. L. Distant 07i Australasian Coreidse. 577 



Allied to A. alternatus, Dall., by the apparently shorter 

 and distinctly much more curved posterior tibite, different 

 colour of the abdomen above, &c. 



Some difficulty occurs with the species described as 

 A. planus, Walk., and which, as I pointed out in 1900 (Ann. 

 & Mag. Nat. Hist. (7) vi, p. 376), is a synonym of A. alter- 

 natus, Dall. This applies to the female, which he first 

 described ; he then added a description of a male specimen, 

 which is another species altogether, and forms the type of 

 the above. 



Tambourina, gen. nov. 



Head subquadrate, about as long as breadth between eyes ; 

 lobes about equal in length, but central lobe slightly promi- 

 nent and a little apically deflected ; ocelli at a short distance 

 from base, almost as near each other as to eyes ; antennae 

 four-jointed, first, second, and fourth joints longest and 

 about subequal in length, third a little shortest ; pronotum 

 with the breadth at base less than twice its length, mode- 

 rately deflected on anterior area, lateral margins sinuate, 

 lateral angles distinctly roundly prominent, a slightly promi- 

 nent subbasal transverse ridge, the lateral margins at anterior 

 area obsoletely crenulate ; scutellum about as broad at base 

 as long ; corium subequal in length to head, pronotum, and 

 scutellum together ; membrane closely, somewhat reticu- 

 lately veined ; rostrum passing the anterior coxse, first joint 

 not reaching base of head, third shortest and reaching ante- 

 rior coxae ; pro- and mesosterna distinctly, centrally, longi- 

 tudinally sulcate, the sulcation of the latter confined to its 

 anterior area, which is a little angularly produced between 

 the anterior coxae; abdomen beneath in male with a distinct, 

 central, broad callosity on second segment ; anterior and 

 intermediate femora with a distinct spine beneath near apex, 

 posterior femora somewhat strongly incrassated, spined 

 beneath on apical third, shortly sparingly tuberculate near 

 upper surface ; posterior tibiae distinctly dilated on each side, 

 roundly above, angularly beneath, the dilatation gradually 

 increasing from base and terminating a little beyond middle ; 

 posterior tarsi three-jointed, basal joint shortest. 



Allied to Amorbus, from which it differs by the relatively 

 shorter and broader pronotum, the posterior tibiae dilated on 

 each side, &c. 



Tambourina kelsalli, sp. n. 

 S . Brownish ochraceous, abdomen above and beneath 



