32 R. W. CROSSKEY 



least one pair of clearly differentiated preapical discal setae, these semi-recumbent. 

 Usually three post ia setae increasing in size from first to third, if only two present 

 then the anterior one remote from the transverse suture. Apex of § abdomen 

 not forcipate EUTHERINI (p. 39) 



Tribe TRICHOPODINI 



The Trichopodini are primarily a tropical and subtropical group and are best 

 represented in the Neotropics, but a few members of the tribe occur in the Ethiopian 

 Region, in the south-east Asian islands, in Melanesia, and in Queensland and New 

 South Wales. In Australia two genera occur, Saralba which is an endemic Austra- 

 lasian genus found from New South Wales to New Guinea, and Pentatomophaga 

 which is an essentially Afro-Oriental element in the Australian fauna and occurs 

 from Java to Queensland and New Caledonia. The African connection is shown 

 clearly by the fact that Pentatomophaga (although here accepted as valid, pending 

 revision of the Old World Trichopodini by a specialist on Phasiinae) is not really 

 distinct from the African trichopodine genus Bogosia Rondani (cf., for example, 

 Pentatomophaga bicincta de Meijere and Bogosia minor Villeneuve). 



The chief characteristics of the Trichopodini are as follows. Head dichoptic, interfrontal 

 area wide in both sexes, eye facets not enlarged; $ without proclinate orbital setae; face 

 without a median keel ; ocellar setae proclinate (often very weak) ; antennae moderately or 

 very short (not nearly reaching epistome) ; palpi present ; humeral callus with one or two 

 setae; ph setae nil or one; acr setae usually o 4- 1 ; dc setae variable, commonly 1+2, 

 sometimes more; pra seta present or absent (usually absent); one sa seta; one post ia seta; 

 o I 1 or 1 -f 1 stpl setae ; inf rasquamal hairs present (usually minute) ; scutellum with two 

 pairs of marginal setae, without discal setae; wings rather long and usually narrow, not 

 normally sexually dimorphic ; second costal sector haired ventrally ; basal node of i?., , 5 bare 

 or with one or two very minute hairs; bend of vein M forming an open rounded obtuse curve; 

 cell i? 5 open or just closed at the wing margin or with a very short petiole (less than the length 

 of r-m) ; wing membrane partially or wholly infuscate ; last section of Cw x very short (less 

 than half as long as m—cu) ; lower calypter very broad posteriorly and with outer posterior 

 corner rather produced, hind margin straight or slightly concave; legs weakly bristled, tibiae 

 not very strongly curved, hind tibia in many New World forms armed with a long fringe 

 of flattened black scales; hind tibia without a pd preapical seta and without pv apical seta; 

 hind coxae rather widely separated from abdominal base, but posteroventral declivity of 

 the thorax incompletely sclerotized (membranous or semi-membranous medially) ; abdomen 

 elongate and dorsoventrally flattened in most forms, sometimes slightly clavate; Ti + 2 

 excavate only at extreme base (virtually without any excavation) ; abdominal bristling very 

 weak, sometimes no definite setae developed (vestiture all hair like) ; short flattened T6 visible 

 from above in both sexes (usually armed with some short stubby setae on the posterior part) ; 

 $ postabdomen not recurved, ovipositor very short and inconspicuous. 



In both the Australian genera of Trichopodini the thoracic and leg colour is 

 similar: the mesonotum is velvety black or brownish black with two transverse 

 golden or golden-orange bands (one on the posterior half of the prescutum connecting 

 the notopleura and the other on the scutum immediately before the scutellum); 

 and the legs are yellow or orange basally (as far as the basal parts of the femora) 

 and black on the remainder. The head form is shown for Saralba in Text-fig. 26. 



