486 HALIDAY ON 



Fem. — Caput et thorax nigro-picea, punctulata, pubescentia : antennae 

 breviores quani in A. lacertoso articulo 3"°. luteo : alse fumato- 

 hyalinae stigmate dilute piceo, nervis fuscis : stigma angustius 

 quam in A. plagiatore sed latius et minus elongatum quam in 

 A. lacertoso : pedes ferruginei : abdomen oblongo-lanceolatum 

 piceum, plaga media baseos pallescente : segmentum primum gra- 

 nulatum opacum fuscum, brevius et crassius quam reliquis, sub- 

 rectangulum basi gibbum : aeuleus crassior fere vomeriformis 

 apice ascendens niger. Alas, simillimus. Antennae totse nigrae. 

 Statura tota multo brevior quam sequentium. 



Hab. rarissime. — (Mus. Soc. Ent.) 



Sp. 7. A. E. plagiator. Abdominis segmento prtmo lineari, 

 stigmate latiore intus parum elongaio. (Long. .1 ± ; 

 alar. .2±.) 



Fern. — Nigra nitida : antennae breves compressse : alaj obscure 

 hyalinse nervis fuscis stigmate piceo : pedes antici rufo-picei, 

 intermedii infuscati, postici obscuriores trochanteribus et tibiis 

 basi aut latius rufescentibus : abdomen lineari-lanceolatum, 

 piceum, plaga media baseos pallida, petiolus linearis in medio fere 

 obsolete tuberculatus : aeuleus gracilis, conicus, niger. Mas, 

 similis plerunque minor, pedibus obscurioribus. 



Hab. in memoribus passim minus frequens. — (Mms. Soc. Ent.) 



Bracon plagiator. Berl. Mag. V. 



Obs. — A sequente facile distinguendus colore obscuriore, alls baud 

 infumatis, stigmatis forma, antennis brevibus, plerunque etiam 

 statura minore. 



Sp. 8. A. E. lacertosus. Abdominis segmento primo linearis 

 stigmate angusto, intus valde elongate. (Long. .14—; 

 alar. .26-.) 



Fern. — Nigra nitida: antennae concolores pedicello ferrugineo, articulo 

 tertio longissimo : alse quam in praecedentibus longiores, fumato- 

 hyalinae nervis fuscis, stigmate piceo (in vivis lutescente) : pedes 

 ferruginei, femora postica fusca : abdomen lineari-lanceolatum 

 plaga media baseos pallescente, petiolus ut in prsecedente : aeu- 

 leus gracilior niger : stigma huic angustius et interne attenuato- 

 elongatum unde areola cubitalis prima solito longior. Mas, 

 antennis nigris. 



Habitat, in agris passim Aphides Ervi forsitan et alias pungens s. 

 {Mus. Soc. Ent.) 

 s In oviposition it carries the abdomen like the genuine Aphidii, but pierces 



the hack of the Puceron, for which the slight inclination of the borer seems adapted, 



and the contact is less instantaneous, being often prolonged for several seconds. 



