158 CATALOGUE OF 



quinque longis biseriatim armatae ; tibiae posticae spinis plurimis parvis bi- 

 seriatim armatse ; tarsi lati. Alae corpore valde longiores. Ala? anticie 

 angustae, confertissime reticulatae. 



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

 large, perpendicular and dilated in front; a long lanceolate acute horn 

 ascending obliquely from between the sockets of the antennae ; fore part of 

 the front transversely and minutely striated ; face with two longitudinal 

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

 Mandibles large, curved. Palpi long, slender, filiform, thinly pubescent, 

 incrassated at the tips. Maxillary palpi about twice the length of the 

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

 first; third about thrice the length 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 of 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 angular transverse furrows. Prosternum, meso- 

 sternum and metasternum each armed with two slender obtuse spines. 

 Abdomen slender; apical appendages small. Cerci stout, lanceolate, 

 clothed with long hairs. Legs slender, very long ; fore coxae armed with 

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

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

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

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

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

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

 on the upper side; hind tibia? with seventeen minute spines on each side. 

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

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

 bodj. 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 Cerberodon 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. 



MONOCEROPHORA MINAX. 



Mas. Rufescente fulva ; caput nigrum, lateribus rufescente fulvis ; palpi 

 flavi, apice fusci ; prothorax nigro univittatus; abdomen testaceum, 

 nigro bivittatwn ; tibia quatuor anteriores spinis nigris apice rufis ; 

 al& anticcs ferruginea, fulvo venosce, basi pallidiores ; alee postica 

 einerets. 



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

 Eyes tawny. Palpi yellow ; tips brown. Antennas piceous, red towards 

 the base ; first and second joints blackish. 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 

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

 spines ; spines of the four anterior tibiae black, with red tips ; spines of the 



