MONOGRAPHIA CHALCIDITUM. 303 



humeralis ramulum rejiciens nullum ; cubitalis radiali paullo 

 brevior, stigmate rotundato terminatus. 



Sp. 1. Meto. atrum. Fern. Atrum, pedibus rufo-fuscisy 

 antennis femoribusque nigris, alisfuscis. 



Atrum, obscurum : oculi ocellique rufo-fusci : antennae nigras ; 

 articuli 1"^ 3"^ et 4"^ rufi ; 2"^ fuscus : abdomen aeneo-atrum, 

 nitens, fere glabrum : pedes rufo-fusci ; coxae et femora nigra ; 

 tarsi flavi, apice fusci : alas fuseae ; squamulas et nervi obscuriora ; 

 stigma parvum ; metalarum nervi pallidi. (Corp. long. | lin. ; 

 alar. \\ lin.) 



August ; on grass beneath trees ; near London. 



+++ Antennce IZ-articulatce. 

 -\ Antennce articulo 3°. scepe vix conspicuo. 4°. 5°. que minimis. 



C iexh planus. Corpus angustum, sublineare VIII. Playterma. 

 Thorax supra < 



f convexus. Corpus breve, latum IX. Amblymerus. 



Genus VIII. — Platyterma,^ Walker. 



Corpus angustum, quasi squameum, plerumque sublineare : caput 

 mediocre, tborace vix latius : mandibulae 4-dentat8e, parvae, rectse, 

 similes, intus breves et emarginatse ; dens externus mediocris, 

 subacutus ; reliqui parvi, fere obtusi : maxillas elongatse, sub- 

 arcuatae, angustae, basi latse, apice acuminatae ; palpi 4-articulati, 

 filiformes ; articuli, 1"^., 2"^ et 3^^ subaequales ; 4"^ longior, 

 apice acuminatus : mentum elongato-ovatum : labium parvum, 

 quasi fissum ; palpi 3-articulati, breves ; articulus 2^^. parvus ; 

 3^^. acuminatus: antennae IS-articulatae, clavatae, latae, corporis 

 dimidio breviores ; articulus !"«. sublinearis, gracilis ; 3"^. vix 

 conspicuus; 4"^. et 5^^. minimi; 6"^ et sequentes ad 10"™. 

 magnitudine crescentes, valde approximati ; clava brevi-ovata, 

 depressa, non acuminata, articulo 10°. mult6 latior : thorax 

 elongato-ovatus aut sublinearis, supra fere planus : prothorax 

 brevissimus : mesothoracis parapsides scuto fere in unum confusae : 

 metathorax parvus, postice vix angustius : maris abdomen sub- 

 lineare, tborace paull6 brevius et angustius ; segmentum 1™\ 

 longum ; sequentia paullo breviora, subaequalia : fern, abdomen 

 ovatum aut sublineare nonnunquam subcompressum, apice acumi- 



*" irAuTus latus, rtpfxa finis. 



