158 CATALOG LE OK 



(juintjue longis biseriatim annatae ; libiiE poslica; spiuis pliiiiinis parvis bi- 

 seriatim arinalif ; tarsi lali. AliE corpore valde longiores. Alae anticae 

 angusta?, conferlissiine reticulalac. 



Male. Body slender, convex, smooth, nearly cylindrical. Head 

 large, perpendicular and dilated in front; a lonfj^ lanceolate acute burn 

 ascending obliquely from between the sockets of tbe antcnnce ; fore part of 

 the front transversely and minutely striated ; face with two longitudiual 

 grooves ; labrum elongate-oval. Eyes small, nearly round, very prominent. 

 Mandil)les large, curved. Palpi long, slender, filiform, ibinly pubescent, 

 incrassated at tbe lips. Maxillary palpi about twice tbe length of the 

 labial palpi ; first joint very short; second about twice the length of the 

 first; third about thrice the lenjrth of the second; fourth a little shorter 

 than the third ; fifth as long as the fourth. First joint of the labial palpi 

 very short; second nearly thrice the length uf the first; third very much 

 longer than the second. Antenna? very slender, very much longer than the 

 body; first and second joints incrassated. Prothorax a little longer than 

 broad, with two slightly :nigular transverse furrows. Prosiernum, meso- 

 slernum and metasteruuu) each armed with two slender obtuse spines. 

 Abdomen slender; apical appendages sn)all. Cerci stout, lanceolate, 

 clothed with long hairs. Leijs slender, very long; fore coxa* armed with 

 an acute lanceolate spine; four posterior coxa; armed with a shorter obtuse 

 spine; four anterior femora with four rather short and slender spines ou 

 each side; hind femora with ten minute spines on each side; fore tibice 

 with five pairs of spines, the four first extremely long, the fifth much shorter 

 than the fourth ; middle tibia; with five pairs of rather long spines, which 

 from the first to the fifth successively decrease in length, three shorter spines 

 on the upper side; hind iibi;c with seventeen minute spines on each side. 

 Tarsi four-jointed ; first, second and third joints broad; fourth slender, as 

 long as tbe three preceding together. Wings very much longer than the 

 body. Fore wings narrow, thickly and very minutely reticulated, inde- 

 pendently of the transverse sectors, which are irregular and not numerous. 

 Hind wings with very numerous transverse sectors. 



This genus and t'crhirodon will form a group in the family, and may 

 be distinguished from the neighbouring genera by their very prominent 

 eyes, by the spines on the fore femora, and by the structure of the fore 

 wings. 



MoNOCEROniORA MINAX. 



Mas. Hufescente fulva ; caput nigrum, lalcrilus rufescente fulvis ; palpi 

 Jluvi, apice fusci ; prothorax niyro ujiivittatut; abdomen Icstaccum, 

 nigra Invittatum : libitc i/uatuur aiiteriorrs spiuix uigris apice rujis ; 

 al(C anticcc fcrruginca, fulvo venosir^ basi pallidiorcs ; aiit postica 

 cinerea. 



Male. Reddish tawny. Head black, reddish tawny on each side. 

 Eyes tawny. Palpi yellow ; tips brown. Antenn^-E piccous, red towards 

 the base; first and second joints blackisl). Prothorax with a black stripe 

 which is broadest in front. Pectus and abdomen testaceous, the latter 

 with an irregular black stripe on each side. Hind femora indistinctly 

 blreakcd on each side; four anterior femora blackish beneath, with black 

 spiucs ; spines of the four auterior tibiic Mack, with red lips ; spines of the 



