'î'54 O. M. Reuter. 



liead, second a little longer tlian the anteocular head. Prothorax with two 

 ridges, which diverge on the hinder lobe; angles ronnded, not prominent; fore 

 lobe ratlier longer than the hind lobe, with oblique furrows on each side. Scu- 

 tellum comi^ressed at the tip. Abdomen rounded, and extending much beyond 

 the fore wings on each side, keeled beneath. Legs rather long and slender; 

 fore femora incrassated, serrated -beneath; four anterior tibiae tawny, Avith two 

 brown bands; fore tibiae sligthly curved. Fore wings extending nearly to the 

 tip of the abdomen. Length of the body 8 — 10 lines. 

 Ega. From Mr. Bâtes' collection." 



Pag. 24. 



„6. Oncocephalus ventralis. 



o' Testaceus, gracilis, postice sublatescens, subtus piceo bivittatus; caput 

 prothorace multo brevius; rostrum nigrum, basi flavo-fasciatum; antennae capite 

 et prothorace ad unum breviores; prothorax piceo univittatus ; pedes graciles, 

 femoribus anticis valde incrassatis subtus dentatis. 



(S Testaceous, slender, widening slightly from the tip of the head to the 

 middle of the abdomen. Head much shorter than the prothorax, ante ocular 

 part twice as long as the post-ocular. Rostrum black, with a yellow band 

 near the base. Antennae shorter than the head and the prothorax together; first 

 joint liardly more than half as long as the ante-ocular head, 2:nd nearly twice as 

 long as the first: 3:rd and 4:th short. Prothorax and scutellum with a piceous stripe. 

 Prothorax with rounded and not prominent angles; fore lobe twice as long as 

 the hind lobe. Scntellum short triangulär. Pectus and underside of abdomen 

 with 2 piceous stripes. Connexivum not covered by the fore wings. Legs 

 slender; fore femora much incrassated, dentate beneatli. Length of the body 

 7 lines. S:t Domingo." 



Pag. 26. 



„16. Oncoceplialus cingalensis. 



Ç Ferrugineus, gracilis, antice sublatescens; caput prothoracis lobo antico 

 longius; scutellum apice nigricans; pedes fulvi, graciles, femoi'ibus anticis in- 

 crassatis subtus serratis, tibiis 4 anterioribus fusco 3-fasciatis; alae anticae ab- 

 dominis apicem non attingentes. 



Ç Ferrugineous, slender, slightly tapering from the head to near the tip 

 of the abdomen. Head longer than the fore lobe of the prothorax, ante ocu- 

 lar part twice as long as the post-ocular; antennae setaceous; first joint much 

 shorter than the ante-ocular head. Fore lobe of the. protorax rather longer 

 than the hind lobe, fore angles slightly prominent and acute; hind lobe with 



