ON THE SPECIES OF PLATYGASTER. 223 



rotundi ; 7 US . et sequentes latissimi, approximate aequales ; 10 us . 

 ovatus, 9°. longior : thorax ovatus : scutellum fere trigonum, 

 abdomen non altingens : metathorax brevissimus : abdomen 

 thorace multo longius, postice attenuatum, supra teliforme, 

 oblique quasi obcapitatum ; segmentum 2 um . ejus trientem occu- 

 pans ; l um . et 3 um . brevissima ; 4 um . multo longius ; 5 um . 4°. 

 longius ; 6 um . adhuc longius, acuminatum ; segmentum 2 um . 

 ventrale subtus valde dilatatum, circulum fingens. 



Sp. 6. Plat. Osaces. Fem. Ater, antennce piccai apice 

 nigra, pedes rufo-picei, alee limpidce. 



Ater, nitens, laevis, glaber : oculi ocellique nigro-picei : antennae 

 picese, corporis dimidio breviores ; articuli basi et subtus palli- 

 diores ; 7 US . et sequentes nigri : mesothoracis parapsidum suturee 

 vix conspicuae : abdomen thorace vix triplo longius ; segmentum 

 l um . et metathorax scabra, obscura, pilis albis dense hirta : pedes 

 picei ; femora et tibiae basi rufa ; protibiae rufae, piceo cingulatas ; 

 tarsi pallide rufi, apice picei : alae limpidae ; discus subfuscus ; 

 squamuhe piceae. (Corp. long. lin. § ; alar. lin. §.) 



Far. (j. — Metafemora omnino nigra. 



September; on grass in fields; near London. Found once 

 in September on willows at Holywood, in Ireland, by Mr. 

 Haliday. 



Sp. 7. Plat, ventralis. Fern. Ater, pedes rufo-picei, alee 

 fuscce. 



Epimeces ventralis . . Weslwood, Loudon s Mag. Nat. Hist. 

 Vol. VI. No. XXXV. p. 421. 



Ater, parum nitens, subtilissime punctatus, parce pubescens : oculi 

 ocellique nigro-picei : antenna? nigrae, corporis dimidii vix longi- 

 tudine ; articulus l us . piceus, subtus rufus : mesothoracis parap- 

 sidum suturae bene determinatae : scutellum, metathorax, abdominis 

 segmentum l uin . omnino 2 um . que basi pilis albis dense hirta; hoc 

 basi quoque bifoveolatum : abdomen laeve, glabrum, thorace vix 

 duplo longius ; segmenta 3°. ad 6 Um . nisi ad apices subtilissime 

 punctata, vix nitentia : oviductus flavus : pedes nigro-picei ; tro- 

 chanteres, femora et tibiae basi rufa ; tarsi rufi, apice picei ; 

 propedes pallidiores, tibiis rufis piceo cingulatis : alas fuscae, basi 

 sublimpidae ; squamulae piceae. (Corp. long. lin. 1 — | ; alar, 

 lin. |—1.) 



