THEKONIA. 143 



the basally black areola large, quadrate and apically incomplete ; 

 lateral arese nearly entirely black, distinctly longer than broad and 

 slightly constricted towards their apices, which are broadest 

 externally ; external spiracular carina? narrow and curved. Abdomen 

 with a broad irregular band before the clear flavous apex of the basal 

 segment, and the bases of the remaining segments broadly black. 

 Legs, and especially the posterior, stout and covered with white 

 pubescence ; the greater part of the hind coxae externally, and the 

 underside of their trochanters and femora, black ; hind femora also 

 with a long inner and shorter outer infuscate discal line. Wings 

 hyaline, highly iridescent, with distinct prismatic reflections ; 

 areolet oblique, with the sides approximating though not coalescent 

 above, emitting the recurrent nervure from its apical fourth part. 



Length 12 millim. 



SIKKIM (JBingham). 



Unknown to me. 



91. Theronia gracilis, Cam. 



Theronia yracilis, Cameron, Manch. Mem. 1899, p. 154 ( ). 



d $ . Head with the mandibular teeth black, and the clypeus 

 glabrous and apically sinuate. Antennce brunneous and darker 

 apically ; scape flavescent beneath with dense and elongate 

 iufuscate pilosity. Thorax : mesonotum brunneous, with its sides 

 and two discal stripes flavous ; propleurse apically, and mesopleurse 

 below, a band beneath the radices, an oblique band to the apex 

 of the intermediate coxae and a mark above them, black ; meta- 

 thorax basally, and its external areas entirely, black ; areola 

 laterally straight, apically obsolete, with the basally open petiolar 

 area straight and oblique. Scutellum not strongly elevated, 

 laterally carinate above, rufescent, with its base flavous and the 

 apex black ; postscutellum basally rounded and constricted, 

 laterally stoutly and obliquely carinate ; the scutellar basal fovea 

 and a semicircular mark at its apex, with others above the hind 

 radices, black. Abdomen with the centre of the five basal, and 

 the base of the two following, segments transversely black ; basal 

 segment laterally black in the centre with its central furrow broad 

 and deeply impressed, as also are those on either side of the 

 second ; terebra 3 millim. Legs with the anterior femora slightly 

 and the hind ones nearly entirely fulvous ; hind coxae externally 

 at the base black and their tarsi nigrescent. Wings hyaline 

 throughout, with the costa and stigma rufescent ; nervures black ; 

 areolet oblique and not emitting the recurrent uervure beyond the 

 centre. 



Length 9-10 millim. 



ASSAM: Khasi Hills (Rothney, type). MADRAS: Bangalore 

 -(Cameron, Ind. Mus.). 



Type in the Oxford Museum. 



