262 
Records of the Australian Museum (2009) Vol. 61 
process. One rib of distiphallus ending at 2 A length and with 
floating sclerite near apex; second rib divided into two bifid 
processes with fringed ends. 
Female terminalia (Fig. 106). Ventral receptacle narrowed 
at base and flagellum long, thin and straight. Spermatheca 
longer than wide, widest medially and wrinkled at base. 
Etymology. The specific name refers to the three dorso- 
central bristles characteristic of this species. 
Comments. Heteromeringia trisetosa is unique among the 
Australian Heteromeringia in having three pairs of well 
developed dorsocentrals—all other species have two pairs, 
sometimes with a well developed setula in front of the 
anterior dorsocentral. 
Acknowledgments. I would like to thank the following people 
and institutions for lending the material used in this study: D. 
Britton, D.K. McAlpine and M. Moulds (AMS); D.K. Yeates 
(ANIC), J. Cumming (CNC), F. Menzel (DEI), B. Merz (MHNG), 
C. Lambkin (QMBA), A. Freidberg (TAU) and Greg Daniels 
(UQIC). D. Bickel, R. Russell and D. Yeates are thanked for their 
help in locating type material. Lastly, W.N. Mathis and D.K. 
McAlpine are thanked for their review of this manuscript and 
D. K. McAlpine is thanked for his correspondence regarding the 
Australian Clusiidae. This study was supported by a Schlinger 
Postdoctoral Fellowship grant. 
References 
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Manuscript submitted 12 March 2009, accepted 16 July 2009. 
