HEMIPTERA. 493 



nearly straight. Thorax spinous. Scutellum small. Membrane 

 with about nine nervures. Legs long and slender; thighs un- 

 armed, slightly clavate at the apex ; tarsi of three joints ; basal 

 joint longer than the others together ; second joint shorter than 

 the third. 



1. HYDARA tenuicornis. PL XIX. fig. 5. 



Coreus tenuicornis, Hope, Cat. 24 (1842). 



a. Sierra Leone. Presented by the Rev. D. F. Morgan. 



Genus 7- GONOCERUS. 



Cimex, p., DeG. Mem. iii. (1773). 



Coreus, p., Fab. Ent. Syst. iv. (1794) <$ Syst. Rh. (1803) ; Schill 



Eeitr. i. (1829) ; H. Sch. Norn. Ent. i. (1835) ; Ramb. F. And. 



ii. (1841 ?) ; Kol. Mel. Ent. ii. (1845). 

 Gonocerus, Lat. Fam. Nat. 420 (1825); Burm. Handb. ii. 310 



(1835) ; Spin. Hem. 217 (1837) ; Am. fy Serv. Hem. 238 (1843); 



H. Sch. Wanz. ix. 242 & 262 (1851). 

 Oriterus, Hahn, Wanz. i. (1831). 

 Merocoris, p., Spin. Tav. Sin. Hem. 39 (1850). 



* Lateral angles of the thorax more or less prominent or spinous. 



1. GONOCERUS luridus, n. s. 



G. supra luridus, nigro-punctatus, subtus fulvus maculis nonnullis 

 nigris, pectore mfo-variegato ; humeris acute spinosis, recurvis, 

 antrorsum versis ; elytrorum margine externo basi albido ; ab- 

 dominis marginibus fulvo nigroque variis. ? . 

 Long. lin. 8. 



Head above nearly black, thickly and finely punctured, with a 

 whitish streak on each side within the eyes; beneath orange, 

 thicklv and finely punctured, with a red spot on each side. 

 Thorax deep reddish brown, thickly punctured with black, with 

 two small white points near the anterior margin ; lateral angles 

 produced into slender acute black spines, which are directed for- 

 wards and a little upwards. Scutellum reddish, with the margins 

 blackish, transversely wrinkled. Coriaceous portion of the elytra 

 dark reddish brown, becoming pale dull red towards the apex, 

 thickly punctured with black ; the basal half of the outer margin 

 whitish ; membrane brown, with the inner basal angle black. 

 Margins of the abdomen banded with deep orange and black. 

 Body beneath orange ; abdomen with the stigmata and a spot on 

 each side of each segment within the stigmata, black. Breast 



