49 



The anal vein is very shortly incurved at the hindmargin. Most 

 of the species known are South and Central American, but 

 several occur also in India and the Malay Archipelago. 



Thyrsocera soror, Brunner (Syst., 120). 

 " Small. Antennae of male wholly black, base not dilated 

 Pronotum small, scarcely produced behind, deep black ; margin ex- 

 cept in front, pale yellow. Elytra wholly piceous. Legs deep black. 



Male. 

 Length of body ... ... ... 8*5 mm. 



Length of elytra ... ... ... 10 " 



Length of pronotum ... ... ... 3 " 



Wid'th of pronotum 3-3 " 



Hahitat. — Celebes." 



Thyrsocera inquinita. Walk. (Brit. Mus. Cat., 103). 



" Black, fusiform, nearly flat, smooth. Head yellow. Eyes 

 very far apart. Antennae piceous, yellow at the back. Pronotum 

 narrow in front, piceous, with two yellow lines united in front, 

 sides broadly whitish and hyaline, much rounded, hind margin 

 slightly rounded. Meso- and meta-notum, also the base of the 

 abdomen, with a yellow stripe. Abdomen with a slender white 

 margin ; hind border of ventral segments white. Cerci long, 

 testaceous. Legs testaceous. Elytra piceous, costa white towards 

 the base. Wings blackish cinereous. 



Male. 

 Length of body ... ... ... 6*3 mm. 



Length of elytra 12-5 " (?) 



^a6x7«i(.— Australia." 



This and the following of Walker's species have been removed 

 to this genus provisionally, as the description appears to agree 

 better than with any other. 



Thyrsocera marginifera, Walk, (ibid, 107). 

 " Black fusiform, smooth. Head and pronotum thinly 

 punctured. Sockets of the antennte and foremargin testaceous. 

 Antennjc tawny, blackish at the base, setose. Pronotum with a 

 slender yellowish white margin, fore border truncate, setose, hind 

 border very slightly rounded. Elytra coriaceous, veins slightly 

 elevated, forked at the apex ; costal area yellowish white, taper- 

 ing to apex ; anal furrow (? vein) very distinct. Wings blackish. 

 Abdomen piceous, with pale testaceous margin. Cerci, pectus 

 and legs pale testaceous. 



Male. 

 Length of body ... ... ... 8*3 mm. 



Length of elytra ... ... ... 16-5 " (span?) 



Habitat. — Australia." 



D 



