or 
HEMIPTERA HETEROPTERA. 1d 
Black, shining, elliptical. Head elongate-triangular, Eyes not 
prominent. Antenne setaceous, a little more than half the length of the 
body; second joint stout; third about half the length of the fourth, which 
is a little shorter than the second. Prothorax short, smooth, nearly flat. 
Legs slender; tibie and tarsi tawny. Wings cinereous, extending rather 
ae the abdomen. Fore wings white at the base. Length of the body 
4 ine. 
a. Madeira. From Mr. Wollaston’s collection. 
Genus 6. PIEZOSTETHUS. 
Piezostethus, Fieb. Wien. Ent. Mon. iv.; Eur. Hem. 139. Dougl, and 
Scott, Hem. 500. 
1, PIEZOSTETHUS GALACTINUS. 
Anthocoris galactinus, Fieb. Weit. Beitr. i. 107—Anthocoris pulchellus, 
Zelt. Ins. Lapp. 265—Xylocoris albipennis, H.-Sch. Wanz. Ins. ix. 
171, pl. 315, f. 971. Bar. Ent. Zeit. Stett. ii. 194. Flor. Rhyn. Liv. 
i. 669—Piezostethus galactinus, Fieb. Wien. Ent. Mon. iv. 265; Eur. 
Hem. 139. Dougl. and Scott, Hem, 500. 
Europe. 
2, PIEZOSTETHUS FORMICETORUM. 
Antbocoris formicetorum, Boh. K. Vet. Ak. 1844, 158—Xylocoris formice- 
torum, Bar. Berl, Ent. Zeit. ii. 195—Xylocoris formeticicola, Sahlb. 
Geoc. f. 82—Piezostethus formicetorum, fieb. Bur. Hem. 139. 
North Europe. 
3. PIEZOSTETHUS RUFIPENNIS. 
Xylocoris rufipennis, L.-Duf. A. S. BE. F.ii. 106. Burm, Handb. Ent. ii. 
290. Flor, Rhyn. Liv. i. 668—Piezostethus rufipennis, Fieb. Fur. 
Hem. 139. Dougl. and Scott, Hem. 501—Xylocoris bicolor, Scholz, 
Arb. Ver. 1846—Xylocoris latior, Muls, Ann. Soe. Linn. 1852, 106— 
Xylocoris obliquus, Costa, Cent. 1852—Piezostethus bicolor, Fieb. 
Eur. Hem, 139. 
Europe. 
4, PreEzOSTETHUS MACULIPENNIS. 
Xylocoris maculipennis, Bar. Berl. Ent, Zeit. ii. 197--Piezostethus 
maculipennis, Mieb. Hur, Hem. 140. 
Spain. 
5. PrezosTETHUsS CENOMYCES. 
Xylocoris Cenomyces, Bar. Berl, Ent. Zeit, ii, 199, 
