OBIENTOTHEROXIA. 147 



narrowed, distinctly and somewhat strongly punctate and pilose ; 

 clypeus smoother, convex and truncate at the base and apex, 

 strongly transvserse, with the labrum not exserted ; mandibles 

 stout and punctate, with the apical teeth of equal length, short, 

 strongly obtuse and black ; cheeks obsolete, eyes strongly emargi- 

 nate next the scrobes. Antennce nearly as long as the body, a 

 little attenuate basally, ferruginous throughout, with the scape 

 flavous beneath ; basal flagellar joints cylindrical and not elongate, 

 hardly twice as long as broad. Thorax flavous and obsoletely 

 punctate ; mesonotum with longitudinal central and lateral 

 ferruginous marks on the disc and a curved black line beneath the 

 ^radices ; metathorax apically ferruginous, with the external areae 

 entirely and determinately black ; lateral areae strong, areola a 

 little narrowed basally and weakly truncate apically ; apophyses 

 distinct but obtuse, spiracles linear and not small. Scutellum 

 .and postscutellum obsoletely punctate, not convex, with the apex 

 of the former piceous, and its lateral carinae narrow and not 

 extending beyond the centre. Abdomen subfusiform, ferruginous, 

 hardly reticulate and strongly nitidulous ; all the segments 

 -centrally black on the distinct and transverse tubercles, with a 

 flavous transverse line before their apices ; basal segment distinctly 

 longer than broad, flavous, with a determinate central black or 

 castaneous fascia which is medially impressed ; terebra black, 

 obsoletely pilose and half the length of the abdomen. Legs 

 flavous, with the anterior femora canaliculate beneath; hind coxae 

 -and apices of trochanters, and the posterior femora beneath, black, 

 the latter above (as well as whole of their tibiae) castaneous and 

 their tarsi infuscate ; claws strongly curved, somewhat slender, 

 not basally lobate nor extending beyond the pulvilli. Wings 

 siliceous and not clouded; radix and tegulaa flavous, latter apically 

 castaneous ; cosra and the very narrow stigma piceous ; radial 

 nervure somewhat straight above the oblique and sessile areolet, 

 which emits the recurrent nervure slightly beyond its centre; 

 first recurrent of the lower wings strongly postf urcal, emitting 

 the nervellus from its upper third. 



Length 9-12 millim. 



There is usually a black mark before the scutellum and a black 

 line down the base of the mesopleurse ; the areola is often marked 

 with black, but the abdominal tubercles are not infrequently no 

 darker than the disc, and in one or two cases I have seen the 

 three mesonotal stripes purely rufescent ; the sinuation of the 

 exterior radius appears variable, being much stronger above the 

 : areolet in specimens which have the stigma testaceous. 



The male differs only in its more elongate and narrower 

 abdomen. 



SIKKIM, 1800 ft. and 4000 ft. (G. 0. Dudgeon, Bingham); 

 ASSAM : Khasi Hills ; BUEMA. : Rangoon (type) and Mandalay 

 .(Bingham), Palon and Shwegu-rayo (Fea). HovG-KoNG. 



Type in the British Museum. 



L2 



