HEMIPTERA HETEROPTERA. 25 



Male. 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, wilh a 

 yellow band near the base. Antennae shorter than the head and the 

 prothorax together; first joint hardly more than half as long as the ante- 

 ocular head ; second nearly twice as long as the first ; third and fourth 

 short. Prothorax and scutellum with a piceous stripe. Prothorax wilh 

 rounded and not prominent angles; fore lobe twice as long as the hind 

 lobe. Scutellum short, triangular. Pectus and uuder side of the abdomen 

 with two piceous stripes. Counexivum not covered by the fore wings. 

 Legs slender; fore femora much incrassated, dentate beneath. Length of 

 the body 7 lines. 



a. St. Domingo. Presented by W. W. Saunders, Esq. 



b. St. Domingo. From Mr. Tweedie's collection. 



Africa. 

 The African species are grouped by Prof. Stal as follows: — 



A. Side borders of the prothorax with no little tubercles or spines. 



a. First joint of the rostrum shorter than the second — obsoletus, impicti- 



pennis. 



b. First and second joints of the rostrum equal in length, or the latter 



just longer than the former — cancellatus, sordidus. 



B. Side borders of the prothorax armed nearly in the middle with a little 



tubercle or spine. First and second joints of the rostrum equal in 

 length — annulipes, subspinosa. 



7. Oncocephalus obsoletus. 



Reduvius (Oncocephalus) obsoletus, King, Sgmb. Phys, Ins. i. pi. 19, f. 2 

 — Oucocephalus obsoletus, Stal, Hem. Afr. iii. 156. 



Nubia. 



8. Oncocephalus impictipennis. 

 impictipennis, Slal, Hem. Afr. iii. 156. 

 Nubia. 



9. Oncocephalus cancellatus. 

 cancellatus, Slal, Ofv. K. V. Ak. Fork. xii. 44 ; Hem. Afr. iii. 157. 

 Natal. 



10. Oncocephalus sordidus. 

 sordidus, Slal y Ofv. K. V. Ak. Forh. xii. 44 ; Hem. Afr. iii. 157. 

 Natal. 



11. Oncocephalus annulipes. 

 annulipes, Stal, Ofv. K. V. Ak. Forh. xii. 44 ; Hem. Afr. iii. 158. 

 Natal. 



