HEMIPTERA. 



503 



7. CERATOPACHYS nigricornis. 



Homceocerus nigricornis, Germ. Silb. Rev. Ent. v. 148. 65 (1837). 

 Ceratopachys capensis, Hope, Cat. 22 (1842). 



a. S. Africa. Presented by Dr. Andrew Smith. 



b. Cape of Good Hope. From M. Drege's Collection. 



t Thorax produced on each side into a broad raised process. 

 (PRISMATOCERUS, Am. Serv.) 



8. CERATOPACHYS magnicornis. 



Homceocerus magnicornis, Burm. Handb. ii. 316. 2 (1835). 

 Prismatocerus auritulus, Am. fy Serv. Hem. 185. 1. pi. 4. fig. 3 

 (1843). 



a. S. Africa. Presented by Dr. Andrew Smith. 



b. S. Africa. 



c. Cape of Good Hope. From M. Drege's Collection. 



Genus 9. DISCOGASTER. 



Discogaster, Burm. Handb. ii. 315 (1835) ; H. Sch. Wanz. vi. 15 

 (1842) & ix. 240 (1850) & 262 (1851); Spin. Tav. Sin. Hem. 

 42 (1850). 



Coryzoplatus, Spin. Hem. 148 (1837). 



1. DISCOGASTER rhomboideus. 



Discogaster rhomboideus, Burm. Handb. ii. 315. 1 (1835) [nee 

 Am. $ Serv.'] ; H. Sch. Wanz. vi. 15. t. 185. fig. 571 (1842). 

 Coryzoplatus palleus, Spin. Hem. 149 (1837). 

 a. . From Mr. Children's Collection. 



Genus 10. AULACOSTERNUM, n. g. 



Head quadrangular, with the outer angles of the antenniferous 

 tubercles spinous and with a similar spine between the base of the 

 antenna, making the head trispinous in front. Eyes not promi- 

 nent; ocelli small, placed close to the anterior margin of the 

 thorax. Antennae about as long as the body ; basal joint stout, 

 shortest, about as long as the head ; second joint longest ; third 

 longer than the fourth, at the base of which there is a small an- 

 nular joint ; fourth joint slightly thickened. Rostrum rather long, 

 reaching the posterior coxae ; basal joint reaching the base of the 

 head, enclosed at its base between two distinct lamellae ; second 

 joint longest, third shortest, fourth about equal to the first. 

 Body elongate. Membrane of the elytra with longitudinal ner- 



