HEMIPTlillA HETEROPi'ERA. 155 



not 



e 



Black, shining, elliptical. Head elongate-triangular. Eyes nc 

 prominent. Antennae setaceous, a little more than half the length of th 

 body; second joint stout; third about half the length of the fourth, which 

 is a little shorter than the second. Prolhorax short, smooth, nearly flat. 

 Legs slender; tibiae and tarsi tawny. Winjis cinereous, extending rather 

 beyond the abdomen. Fore wings white at the base. Length of the body 

 f line. 



a. Madeira. From Mr. Wollastou'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. Beilr. i. 107 — Anthocoris pulchellus, 

 Zell. Ins. Lapp. 265 — Xylocoris albipennis, H.-Sch. Wanz. Ins. \x. 

 171, pi. 315, f. 971. Bar. Ent. Zrit. Slett. 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 fokmicetorum. 



Anthocoris formicetorum, Boh. K. Vet. Ak. 1844, 158 — Xylocoris formice- 

 torum, Bar. Berl. Ent. Zeit. ii. 195 — Xylocoris formeticicola, Sahib. 

 Geoc. f. 82 — Piezostethus formicetorum, Fieb. Eur. Hem. 139. 



North Europe. 



3. Piezostethus rufipennis. 



Xylocoris rufipennis, L.-Duf. A. S. E.F. ii. 106. Burm. Handb. Ent. ii. 

 290. Flor. Rhyn. Liv. i. 668 — Piezostethus rufipennis, Fieb. Eur. 

 Hem. 139. Dougl. and Scott, Hem. 501 — Xylocoris bicolor, Scholz, 

 Arb. Ver. 1846 — Xylocoris latior, Muls. Ann. Soc. Linn. 1852, 106 — 

 Xylocoris obliquus, Costa, Cent. 1852 — Piezostethus bicolor, Fieb. 

 Eur. Hem. 139. 



Europe. 



4. Piezostethus maculipennis. 



Xylocoris maculipennis, Bar. Bed. Ent. Zeit. ii. 197 — Piezostethus 

 maculipennis, Fieb. Eur. Hem. 140. 



Spain. 



5. Piezostethus Cenomvces. 

 Xylocoris Ccnomyces, Bar. Berl. Ent. Zeit. ii. 195. 



