Mr. A. H. Haliday on new British Insects. 117 



Subgenus Acrodactyla (Barypus*, C. 490 b .) 



Abdomen basi attenuatum, segmentis intermediis obsoletissime im- 

 pressis;/. ventre apice fisso, terebra exerta brevi. Areola nulla. 

 Tarsi apice incrassati, unguibus lobo infero dilatato obtuso. 



The species of this little group are closely allied to the subg. 

 Polysphincta (and to P. percontatoria in particular), but may 

 be distinguished by the smoother abdomen attenuate at the 

 base, the narrower stigma, and the structure of the claws. 

 From certain Pimples of the typical subgenus which agree in 

 this last respect, they may be known by the want of the areolet, 

 in addition to the former characters. 

 Pimpla madiddy C. 490 b . 2. 



A. abdomine fusco-piceo incisuris nigris, palpis pedibusque stra- 

 mineis, posticorum tibiis apice tarsisque fuscis, stigmate fusco, 

 m.f. Long. 3 lin. 

 England, F. Walker. — Ireland, in shady groves. 

 Pimpla degener, C. 490 b . 1. 



A. abdomine fusco-piceo incisuris nigris; antenn arum basi subtus, 

 palpis, pedibusque stramineis ; posticorum tibiis apice, tarsisque 

 fuscis, stigmate stramineo-piceo, metathorace canaliculate, m.f. 

 Long. 2 lin. 

 In the same situations with the last. 

 Bassus serricornis, C. 522. 36. 



Euc. capitis thoracisque picturis, abdominis fasciis quatuor inter- 

 ruptis, coxis anticis et trochanteribus, albidis ; metathoracis ma- 

 cula laterali pedibusque fulvis ; posticis apice fuscis, tarsis albo- 

 annulatis, m. f. j antennis medio dilatatis serratis, m. j antennis 

 filiformibus,/. Long. 4 lin. 

 Wicklow, June. 

 Bassus Laricis, C. 521. 30 b . 



0. areola irregulari subquadrangulari, segmentis intermediis mar- 

 gine antennis pedibusque testaceis, fronte flavo-bimaculata, te- 

 rebra subexerta,/. Long. 2 lin. 

 On larches, Holywood. 

 Porizon Unguarius, C. 537. 178 b . 



P. proboscide caput superante ; mesopleuris punctatis, sulco late- 

 rali nullo ; mandibulis, femoribus anticis, tibiisque rufescentibus ; 

 terebra corporis longitudine, /. Long. 2 lin. 

 England, F. Walker. 



* BarypuSy a genus of Carabidce. 



