220 LYG^EINA. 



in the centre, the sides of the opening divergent and rounded. 

 Genital segments ; the 1st, short, lies in the angular opening of the 

 last abdominal segment, resting on the 3rd genital segment, which 

 is large, round, convex, and deeply cleft in the centre ; the 2nd 

 segment appears as a short and triangular plate at each side of 

 the 3rd. 



Species 1. ISCHNODEMUS SABULETI.* 



LYG^EUS SABULETI, Fall. Hem. Suec. 62, 23 (1829). 



ISCHNODEMUS QUADRATUS, Fieb. Weit. Beitr. 338, 15, t. 2, fig. 11 



(1836). 



PACHYMERUS DECURTATUS, H. Schf. Wanz. iv, 10, 1. 113, fig. 355 (1839). 

 PARALLELUS, Costa, Ann. Soc. Ent. France, x, 290, pi. 6, 



fig. 5 (1841). 

 MICROPUS SABULETI, Sign. Ann. Soc. Ent. France, 3me ser. v 29, 8, 



pi. 2, fig. 7, 8 (1857). 



ISCHNODEMUS SABULETI, Fieb. Europ. Hem. 163, 2 (1861) ; Stal, K. Vet. 

 Akad. Forh. 212, 1 (1862). 



Black, dull, clothed with very fine, short, whitish hairs. 



Head very minutely punctured. Antennce \ black, with short 

 whitish hairs ; apex of the 2nd and 3rd and base of the 3rd and 4th 

 joints narrowly yellow. Rostrum yellow-brown, last joint piceous. 



Thorax. Pronotum very short, nearly as broad as long, very 

 finely punctured, the hairs at the sides very fine, longish, and 

 appressed; posterior margin with a dull ochreous line, narrow in 

 the centre and wider at the ends. Scutellum strongly punctured at 

 the sides. Elytra; Clavus whitish, posterior margin and apex 

 piceous ; the nerve brown, punctured ; Corium whitish, slightly 

 shining ; anterior margin dull ochreous ; posterior margin broadly 

 piceous, except the apex ; disk clear, nerves brown or piceous, punc- 

 tured. (In undeveloped examples the Corium is abbreviated, and 

 rounded posteriorly, the Membrane being represented by a narrow 

 whitish border.) Membrane slightly shining, opaque, fuscous-brown, 

 with darker nerves ; base clear whitish, except on the 2nd and 3rd 

 nerves, where a piceous spot reaches over from the posterior margin 



** In the 'Oefvers af K. Yet. Akad. Fb'rh.,' 1862, Dr. Stal has referred this 

 species to the Family Blissida, Stal. 



