184 Mr. Walker's descriptions of ChalcicUtcs /ro??i Chonos. 



XXX. — Descriptions of Chalcidites discovered in the Isle of 

 Chonos by C. Darwin, Esq. By Francis Walker, Esq., 

 F.L.S. 



Lamprotatus Nuinitus, Mas. Niger, abdomen ancum, antenna; nigrte, 

 jjedes fidvi, femora iiigi'a, alee sublimjjidee. 



Corpus breve, convexum, nigrum, parum niteiis, scitissimo squanieum, 

 parce liirtum : caput transversum, breve, thoracis latitudiue ; vertex latus ; 

 frons impressa, abrupte declivis : oculi rufi, mediocres, non extantcs : au- 

 tennae nigra?, graciles, filiformes, thoracenon longiores; articulus 1"' longus, 

 gracilis ; 2"* longicyathiformis ; 3"' et 4"' minimi ; 5"' et sequentes breves, 

 usque ad 10'"" paidlo curtantes: thorax longi-ovatus : prothorax transversus, 

 brevis, antice angustus : mesothoracis scutum longitudine hitius; parapsi- 

 dum suturae bene determiiiatas, postice approxitnatae ; paraptera et epimera 

 magna ; scutelhmi subconicum : metathorax brevis, declivis, postice angus- 

 tus: petiolus brevis: abdomen seneum, brevi-ovatvmi, nitens, \seve, glabrum, 

 thoracc nnilto brevins ; scgmentum 1"™ magnum ; 2""' et sequentia brevis- 

 sima : pedes fulvi, simplices, subaequales ; coxa; nigra? ; femora nigra, apice 

 fulva ; tarsi apice fusci: ala; sublimpida;; squamulae picea; ; nervi fusci ; 

 ncrvus humeralis ulnari fere duplo longior, radialis ulnari non brevioi*, cubi- 

 tali multo longior; stigma mediocre. (Corp. long. lin. l^-; alar. lin. 2^.) 



Pteromalus? Oxynthes, Fem. Aler, antenna; nigrce, pedes nigr'/, tarsi 

 fusci, alee suhfiisca;. 



Corpus angustum, convexum, atrum, nitens, subtilisslme squanieum, parce 

 hirtum : caput transversum, breve, thorace vix latius ; vertex latus ; frons 

 impressa, abrupte declivis : oculi picei, mediocres, non extantes : antennag 

 iiigrre, subclavata;, graciles, thorace non longiores ; articulus 1"' longus, 

 linearis ; 2"' longicyathiformis ; 8"' et 4"' minimi ; 5"^ et sequentes breves, 

 usque ad 10"™ curtantes ; clava longiconica, acuminata, articulo 10° plus 

 duplo longior : thorax ovatus : prothorax transversus, brevissimus : meso- 

 thoracis scutum longitudine latius ; parapsidum sutura; non bene determi- 

 nate ; paraptera et epimera magna; scutellum subconicum: metathorax 

 brevis, declivis, postice angustus ; petiolus brevissimus : abdomen fusiforme, 

 Iseve, supra planum, subtus carinatum, apice acuminatum, thorace multo 

 longius : pedes nigri, simplices, subaequales ; trochanteres picei ; genua 

 picea ; tarsi fusci, apice picei : alte subfuscie; squamulae piceag ; nervi fusci ; 

 nervus humeralis ulnari multo longior, radialis ulnari non brevior, cubitali 

 multo longior; stigma parvum. (Corp, long. lin. 1 ; alar. lin. 1^.) 



Entedon Ufens, Fem. Viride, abdomen nigro-purpureiim, antenna; ni- 

 grcB, pedes fulvi fusco-cincti, femora viridia, ulcs sublimpidce. 



Corpus subKneare, convexum, viride, nitens, scitissime squanieum, parce 

 hirtum : caput transversum, breve, thoracis latitudine ; vertex latus ; frons 

 impressa, abrupte declivis : oculi rufi, mediocres, non extantes : antennie 

 nigrjE : thorax ovatus : prothorax transversus, brevis : mesothoracis scutum 

 longitudine latius ; parapsidum suture bene determinatte, postice approxi- 

 mata? ; scutellum subconicum : metathorax mediocris, obconicus, declivis. 

 petiolus brevis : abdomen brcvi-ovatum, l;eve, supra depressum, subtus ca- 

 rinatimi, apice acuminatum, thorace multo brevius; discus nigro-purpureus; 

 segmentum 1"°' sat magnum ; 2""' et sequentia breviora, suba?qualia : pedes 

 fulvi, simplices, subaequales ; coxae virides; femora viridia ; tarsi apice fusci ; 

 mesopedum et metapedum tibiae apice fuscae : ale sublimpidae ; squamulae 

 piece ; nervi fulvi ; nervus ulnaris humerali longior, radialis ulnari brevior, 

 cubitaiis brevissimus; stigma minutum. (Corp. long, lin, 4-; alar. lin. 1^.) 



