710 



ENTOMOLOGY. 



only distinguished from the second section by their 

 economy, but likewise by the structure of some essential 

 organs. The antennae of this division are exserted, and 

 are very distinct. 



Tribe I. Pentatomides. 

 Antennae composed of five joints. Rostrum with four 

 distinct joints, the three first of nearly an equal length. 

 Labrum very long, striated. Tarsi with three distinct 

 joints, the first elongate. Head trigonate, immersed 

 even to the eyes in the thorax. 



Family I. Scutellerida. 



Scutellum elongate, coveting the elytra and the wings. 



Genus CCCLX. Scutellera. Lam. Latr. Leach. 



Tetyra. Fabricius. 



Cimex. Linn. Gmelin, Wolff. 



Scutellum covering the whole of the abdomen, longer 

 than broad. Thorax very narrow in front. Antennae 

 with the second joint shorter than the third. 



Sfi. I. Sexmaculata. Red shining with silver; feet, 

 antennae, middle of the thorax, six spots on the scutel- 

 lum, breast, epigastrium, and margin of the abdomen, 

 black. 



Scutellera sexmaculata. Leach's Zoological Miscel- 

 lany, vol. i. p. 36. tab. 14. 



Inhabits new Caledonia. 



Genus CCCLXI. Tetyra. Fabricius, Leach. 



Scutellera. Latreille. 



Cimex. Linn. 



Scutellum longer than broad, not covering the sides 

 of the abdomen. Thorax very narrow in front. An- 

 tennae with the second joint longer than the third. 



Sfi. 1. Lineata. Red, thorax with six black lines; 

 scutellum with four black spots ; marginal spots of the 

 abdomen, and six lines of black punctures. 



Cimex lineatus. Linn. 



Tetyra nigro-lineata. Fabricius. 



Scutellera nigro-lineata. Latreille. 



Inhabits the southern parts of Europe. 



Genus CCCLXII. Thyreocoris. Schrank, Leach. 



Scutellera. Latreille. 



Tetyra. Fabricius. 



Cimex. Wolff. 



Scutellum broader than long. Antennae with the se- 

 cond joint very short. Thorax with the anterior mar- 

 gin not much narrower than the hinder margin. 



Sfi. 1. Globus. Orbiculate, somewhat triangular, 

 broader behind, shining brassy-black, punctate ; base of 

 antennae, row of punctures on each side of the abdomen, 

 and knees, red-yellowish ; scutellum with an impressed 

 arcuate line on each side of the base. 



Tetyra globus. Fabricius. 



Cimex globus. Wolff. Icon. dm. fas. 1. p. 3. tab. 1. fig. 3. 



Inhabits southern Europe. 



Family II. Pcntatomida. 



Scutellum not covering the wings or elytra. 

 Genus CCCLXIII. Ilia. Fabricius. 

 Cimex. Linn. Wolff. 

 Pentatoma. Latreille. 



Body ovate. Thorax with the anterior margin much 

 narrower than the hinder. Head longer than broad. An- 



tennae with the second joint not longer than the third ; 

 their base covered by the lateral margins of the head. 



Sfi. 1. Acuminata. Pale-yellowish, longitudinally 

 lineated with fuscous, impressed-punctate ; a luscous 

 band running down the middle of the back, divided by a 

 whitish line ; last joint of the antennae red. 



Cimex acuminatus. Linn. 



Mlia acuminata. Fabricius. 



Pentatoma acuminatum. Latreille. 



Inhabits grassy places. It is rare in Britain. 



Genus CCCLXIV. Pentatoma. Olivier, Latreille 



Cimex. Fabricius, Wolff. 



Body ovate. Thorax with the anterior margin much 

 narrower than the hinder. Head with nearly equal di- 

 ameters. 



Sfi. 1. Bidens. Body griseous above; thorax with o 

 lengthened spine on each side behind. 



Cimex bidens. Fabricius. 



Pentatoma bidens. Latreille. 



Inhabits Europe. 



Sfi. 2. Prasinus. Green above ; hinder angles of the 

 thorax without spines. 



Cimex firasinus. Fabricius. 



Inhabits Europe. 



Genus CCCLXV. Cydnus. Fabricius. 



Pentatoma. Latreille. 



Body ovate, somewhat orbicular; anterior margin of 

 the thorax narrower than the hinder. Head nearly se- 

 micircular. Antennae with the second joint longer than 

 the third. Tibiae spinulosc. 



Sfi. 1. Oleraceus. Brassy dark green; sides of the 

 head and thorax with a longitudinal line, on the latter 

 red ; outer margin of the elytra, a spot on each, with two 

 spots and the apex of the scutellum red ; thighs, (apex 

 excepted,) and middle of the tibiae yellowish. 



Inhabits Europe. 



Tribe II. Coreides. 



Antennae composed of four joints. Rostrum with four 

 distinct joints, the first three of nearly an equal length. 

 Labrum very long, striated. Tarsi with three distinct 

 joints, the first elongate. Head trigonate, immersed 

 even to the eyes within the thorax. 



Genus CCCLXVI. Coreus.* Fabricius, Lamarck, 

 Wolff. Latreille. 



Cimex. Linn. Geoffroy, &c. 



Antennae inserted above a line drawn from the eyes to 

 the base of the lain um ; the last joint thick. Thorax with 

 the anterior narrower than the posterior margin. Body 

 ovate, the sides of the abdomen dilated. Head trigonate ; 

 neck not apparent. 



Sfi. 1. Marginatus. Red-fuscous, obscure ; sides of the 

 abdomen elevated, acute ; antennae with their internal 

 base unidentate, the first and last joints blackish, the mid- 

 dle ones red ; thighs beneath with a canal, and a few lit- 

 tle teeth. 



Coreus marginatus. Fabricius, Latreille. 



Cimex marginatus. Linn. 



Inhabits Europe. Is common on the dock. 



Genus CCCLXVII. Berytus. Fabricius. 



Neides. Latreille. 



Antennae inserted above a line drawn from the eyes 

 to the base of the labrum ; geniculuted about their mid- 

 dle; the first joint very long, the last thick. Body fili- 



• From the Coreus, Dr Leach has formed a genus which he has named Myctis, the characters of which are vertex with two ocelli 

 placed transversely ; antenna filiform, four-jointed, joints cylindric, equal, or with the first joint rather longest. Anterior four tcet alike 

 in size and form ; hinder ones with thick thighs, and with the internal side of the tibiae dilated ; tarsi with the first joint longer than the 

 other two conjoined. Body elongate, flat above ; thorax triangular, very narrow m front j abdomen with dilated sides. This genus con. 

 tains several species, one of which is figured in the first vol. of Zoological MitceUany, p. 92. tab. 40. under Uie title of Myctu Crucifera. 



