28. 

 ACANTHOSOMA HiEMORRHOIDALIS. 



Order Hemiptera. Fam. Pentatomidae Leach, 



Type of the Genus Cimex hsmorrhoidalis Linn. 



AcANTHOsoMA noh. Penttitoma OUv., Lot., Leach. C\me\ Linn., Fab. 



Antennce exserted, inserted under the margin of the head, before 



the eyes, nearly filiform, or slightly clavate, longer than the head, 



articulated, 5 -jointed ; first joint longer than the third, which is 



the shortest. (4.) 



Rostrum inflected, slightly hairy, 4-jointed, the second and third 



joints rather longer than the others. (2.) 



Lahrum very long, attenuated, transversely striated, received into 



a canal in the basal joint of the rostrum. (3. and 3. a) 



Mandibles VLwdil ■,■■, ^ • ^i. u *i * 



Max'llo' I ^^ passmg through the rostrum. 



Head trigonate, immersed nearly or quite up to the eyes in the thorax. 

 Thorax rvith the anterior margin much narrower than the posterior, 

 ungulated on the sides icith a compressed bent spine beneath, extend- 

 ing nearly to the head. (.5. a.) Abdomen depressed above, oblong- 

 quadrate, attenuated towards the apex, with a keel down the centre 

 beneath, terminated by a spine which lies over or by the side of that 

 attached to the thorax. (5. b.) Scutellum large, not covering the 

 wings or elytra. Elytra coriaceous, membranaceous at the apex, 

 crossing each other horizontally. Anterior tibiae scarcely notched 

 internally. Tarsi 2-jointed. (G. afore leg.) 



H^EMOBKiioiDALis Linn. Syst. Nat. 2. 720. 3.5. Fab. Ent. Syst. t.4. 

 p. 98. n. 76. 

 Yellowish green, in-egularly puncturedj the obtuse angles and 

 a transverse baud on the anterior part of the thorax orange ; ab- 

 domen testaceous, variously marked with black and scarlet ; tips 

 of elytra and wings pale ferruginous. Antennae testaceous at the 

 base, black towards the apex. Legs and underside testaceous. 

 Tibiae and tarsi inclining to green. 



In the Author's and other Cabinets. 



The Genus Acanthosovia was proposed in a former pai't of the 

 work, in allusion to the spined keel beneath the abdomen, 

 which is part of Fabricius's specific cliaracter; it is a singular 

 conformation, and appears to protect the rostrum, whicli lies 

 close by the side. The other peculiar marks of distinction (as 



