550 HEMIPTERA. 



56. LYG^EUS xanthostaurus. 



Lygaeus xanthostaurus, H. Sch.Wanz.ix. 200. t.284. f. 874(1850). 



a. Brazil. From Mr. Children's Collection. 



b. Brazil. 



57. LYGAEUS Poeyi. 



Lygseus Poeyi, Guer. Ic. R. A. Ins. 346. pi. 56. fig. 1. 

 . Cuba. Presented by M. Guerin-Meneville. 



58. LYGAEUS lateralis, n. s. 



L. niger, elytrorum margine externo, punctoque in medio tho- 

 racis marginis postici, rufis. 3 . 

 Long. lin. 3. 



Black. Thorax rugose, with a strong transverse ridge a little 

 before the middle, and a raised line down the middle of the pos- 

 terior portion ; the posterior margin with a small red spot in its 

 centre. Coriaceous portion of the elytra with the outer margin 

 bright red. 



a. Mexico. Presented by E. P. Coffin, Esq. 



Genus 2. AROCATUS. 



Lygseus, p., Fab. Syst. Rh. (1803); Schill Beitr. i. (1829); 



Burm. Handb. ii. (1835) ; H. Sch. Norn. Ent. i. (1 835) # Wanz. 



ix. (1850). 

 Arocatus, Spin. Hem. 257 (1837) Tav. Sin. Hem. 38 (1850). 



1. AROCATUS melanocephalus. 



Norn. Ent. i. 43 & 77 (1835) $ Wanz. ix. 198 (1850). 

 Arocatus melanocephalus, Spin. Hem. 257 (1837). 

 Arocatus, Amyot, Ann. Soc. Ent. Fr. 2 me ser. iv. 80. 11.9. 



a. Versailles. 



b. France. 



2. AROCATUS pusillus, n. s. 



A. capite membranaque nigris ; thorace rufo, maculis 2 magnis 

 posticis fuscis ; corio fusco, venis testaceis. c? ? . 

 Long. lin. 2. 



Head black. Thorax red, rather strongly punctured, with two 

 large dark brown spots on the posterior margin. Scutellum 

 blackish, with a pale central line. Coriaceous portion of the 



