BRITISH CYNIPITES. 167 



concursum fingentes : metalae nervo unico subcostali ramulum 

 rejiciente longum. 

 Tardipedes, gallicolae, (Cynips megaptera, Panzer, &c.) 



XXIV. — Mas et Fern. Sect. XXI. similis : antennae moniliformes ; 



thorax angustus ; segmenta non bene determinata ; scutellum 



nonextansnec productum : abdominis segmentum l um . magnum; 



sequentia breviora : alae nullas. 

 Species unica (Cynips aptera, Fabricius) radicibus subterraneis 



gallicola. 



XXV. — Mas et Fern. Sect. XXI. similis : abdomen minus compres- 

 sum : antennas moniliformes; mart 14-fem. 13-articulatae, 3 US . 

 quasi tortus, subtus arcuatus, apice dilatatus : abdomen thorace 

 brevius et angustius ; segmentum l um . magnum reliqua breviora : 

 alas mediocres ; nervus transversus extimus quam Sect. XXI. 

 brevior. 



XXVI. — Mas et Fern. Corpus mediocre, convexum, subtilissime 

 scabrum, parce hirtum : caput breve, subquadratum, thoracis 

 latitudine : trophi minimi : mandibular quadratae, bidentatas, fere 

 rectae ; dentes acuti : maxillae longae, angustae, fere rectae ; 

 laciniae acuminata^, intus lobatae ; palpi 3-articulati ?, breves, 

 clavati, apice setosi ; articulus l us . longicyathiformis, 2 US . brevis, 

 3 US . longiovatus : labium angustum ; palpiger furcatus ; ligula 

 brevis, lata, ciliata ; palpi 2-articulati ?, brevissimi ; articuli lati, 

 subrotundi: mart antennae 15-articulatas, filiformes, corporis lon- 

 gitudine ; articulus l us . cyathiformis ; 2 US . subrotundus ; 3 US . 

 longus, gracilis, teres; sequentes ad 15 um . curtantes : fern. 

 antennae paullo breviores, extrorsum crassiores ; articulus 14 us . 

 13°. major : thorax ovatus : prothorax supra vix conspicuus : 

 mesothoracis parapsidum suturae bene determinatae, postice mutuo 

 accedentes fere occurrentes : scutellum extans, fere rotundum, 

 postice declive : metathorax mediocris declivis : petiolus brevis- 

 simus : abdomen ut Sect. XXIII.: alas mediocres; nervi ut 

 Sect. XXIII., extimus transversus brevior. 



Tardipedes, gallicolae (Cynips lenticularis, Olivier, &c.) 



XXVII. — Mas et Fern. Corpus mediocre, convexum, hirtum : 

 caput subquadratum, thorace paullo latius, scite punctatum, 

 postice angustius : mart antennae 15-articulatas, filiformes, corpore 

 longiores ; articulus l us . brevicyathiformis ; 2 US . rotundus ; 3 US . 

 longus, gracilis, linearis; sequentes ad 13 um . curtantes; 14 us . 

 13°. paullo longior: fern, antennae 14-articulatas, paullo bre- 

 viores : thorax ovatus : prothorax supra vix conspicuus : meso- 

 thoracis scutum subtilissime squameum ; parapsidum suturae 



