THE LEPTOCORISINAE OF THE WORLD 



149 



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 Sao Tome v. 





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•.*:':■= Stenocoris 



southwoodi 





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also present on:- 





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Principe 





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Sao Tome 

 Zanzibar 



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475 



Fig. 475. Distribution map of Stenocoris (Erbula) southwoodi. 



The remaining genera of the Leptocorisini, Leptocorisa, Bloeteocoris and Mutusca, 

 have Oriental and Australian distributions but Leptocorisa is closer to Stenocoris than 

 are the other two. Mutusca and Bloeteocoris might be considered more specialized 

 in having lost the ancestral intervalvular sacs in the ovipositor and developed dorso- 

 lateral conjunctival appendages in the aedeagus. In Mutusca one pair of these 

 appendages are present and are membranous in form ; running parallel with this 

 character is the entirely swollen basal antennal segment, whereas in Bloeteocoris there 

 are two sclerotized pairs of dorso-lateral conjunctival appendages in the aedeagus 

 and this genus also shows remarkable development of genae, the tips of which are 

 acutely pointed and inflexed. 



The species of Leptocorisa fall into a number of groups : 



L. costalis (range Indo-China, Philippines and East Indies) is in many ways the 

 more generalized, showing more characters in common with Stenocoris erratica, 

 especially the small membranous appendage in the male aedeagus, whilst L. 

 biguttata (Indo-China, Sarawak, Celebes and East Indies) and L. palawanensis 



