121 



Perisphaeria, Serville. 



Burm., Handb. II., 483 ; Br., Syst, 303, lig. 37. 



'' Males winged, females wingless. Head covered. Pronotum 

 of male lenticular, foremargin semicircular, slightly raised over 

 the head, flat, not gibbous, hindmargin rounded ; of female semi- 

 orbicular, truncate behind, not incrassated, or dentate beneath. 

 Elytra of male linear, costal area broad. Wings entire, median 

 vein straight, or decurved at apex. Legs thick. Abdomen ovate, 

 dorsal segments truncate behind, angles obtuse. Supra-anal 

 lamina of male transverse ; of female rounded. Cerci of male 

 lanceolate, long, depressed; of female small, conical, inarticulate. 



All the typical species (eight) described by Brunner belong to 

 South Africa ; those by Walker are Australian. 



Perisphaeria laminata, Walker (Brit. Mus. Cat., 178). 



"Black, elliptical, convex, dull, thickly tuberculate above, 

 smooth and shining beneath. Head transversely impressed ; 

 base of antennae, labrum and palpi testaceous ; antennae less 

 than half the length of body. Pronotum semicircular, covering 

 the head, testaceous and sub-hyaline in front (paler l^eneath), 

 sides flat, hindmargin scarcely rounded in the middle. Meso- 

 and meta-notum much dilated, hindangies elongate, acute. Legs 

 and whole underside tawny. Abdomen with dorsal segments 

 extending beyond the ventral, hindangies slightly elongate, acute. 

 Supra-anal lamina entire. Cerci very short. 



Length of body (female)... ... ... 22 mm. 



Habitat. — South Australia ; West Australia," 



No specimen answering to the description has yet l^een seen. 

 It cannot well be assumed that Walker overlooked the spineless 

 femora, when placing the species here, else one might doubt the 

 position. 



Perisphaeria fallax, Walker (ibid, 172). 



" Black, fusiform, shining, very convex, roughly punctured 

 Head smooth, extending a little beyond the pronotum, vertex and 

 palpi dark red. Antennae longer than half the body, setose, 

 dark-red towards the base. Pronotum parabolic, or short coni- 

 cal, sides rounded, straight behind. Meso- and meta-notum with 

 hindangies hardly elongate. Legs deep-red, short, thick, tibiae 

 with short spines. Cerci very short. 



Length of body (female) ... ... 10 mm. (?) 



Habitat. — West Australia." 



Derocalymma, Burmeister. 



Handb. II., 487 ; Br., Syst., 315, fig. 41. 



" Males winged, females wingless. Head wholly coshered. 



