RECORD: Walker, F. 1843. Descriptions of Chalcidites discovered near Conception, in South America, by C. Darwin, Esq. Annals and Magazine of Natural History 11: 30-32.

REVISION HISTORY: Scanned by John van Wyhe, transcribed (single key) by AEL Data 6.2008. RN1


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IX.—Descriptions of Chalcidites discovered near Conception, in South America, by C. Darwin, Esq. By FRANCIS WALKER, F.L.S.

Lamprotatus Alcander, Mas. Æneo-viridis cupreo et cyaneo varius, antennæ fulvæ, pedes fulvi, alæ limpidæ.

Corpus breve, robustum, convexum, æneo-viride, nitens, scitissime squameum, parce hirtum: caput transversum, breve, viride, thorace paullo latius; vertex latus, frons impressa, abrupte declivis: oculi rufi, mediocres, non extantes: antennæ fulvæ, subfiliformes, thorace non longiores; articulus 1us nigro-viridis, longus, gracilis; 2us longicyathiformis; 3us et 4us brevissimi; 5us et sequentes usque ad 10um breves, approximati, subæquales; clavalongiconica, compressa, acuminata, articulo 10° duplo longior: thorax ovatus, cupreo-æueus: prothorax brevissimus: mesothoracis scutum cyaneo-viride, longitudine latius; parapsidum suturæ bene determinatæ, postice approximatæ; scutellum subrotundum: paraptera et epimera magna: metathorax mediocris, obconicus, declivis: petiolus sat longus: abdomen breviovatum, cupreo-varium, supra planum, basi cyaneo-viride, thorace multo brevius; segmentum 1um magnum, 2um et sequentia brevia: pedes fulvi, simplices, subæquales; coxæ virides; tarsi apice fusci: alæ amplæ, limpidæ; squamulæ fuscæ; nervi fulvi; nervus humeralis ulnari fere duplo longior, radialis ulnari non brevior, cubitali multo longior; stigma minutum. (Corp. long. lin. 1; alar. lin. 2.)

Gastrancistrus Cephalon, Fem. Cupreus, antennæ nigræ, pedes lutei, femora basi nigra, alæ limpidæ.

Corpus cupreum, convexum, nitens, scitissime squameum, parce hirtum: caput transversum, breve, thorace latius: vertex latus; frons impressa, abrupte declivis: oculi rufi, mediocres, non extantes: antennæ subclavatæ, nigræ, sat graciles, submoniliformes, thorace non longiores; articulus 1us longus, sublinearis; 2us cyathiformis; 3us et 4us minimi; 5us et sequentes usque ad 10um breves, approximati, subæquales; clava longiconica, acuminata, articulo 10° plus duplo longior: thorax ovatus: prothorax transversus, mediocris, antice angustus: mesothoracis scutum longitudine latius; parapsidum suturæ bene determinatæ, postice approximatæ; scutellum subconicum: metathorax brevis, postice angustus: petiolus brevissimus: abdomen ova-

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planum, subtus carinatum, apice acuminatum, thorace pedes lutei, simplices, subæquales; coxæ virides; femora basi fusci: alæ limpidæ; squamulæ piceæ; nervi fulvi; ner multo longior, radialis ulnari paullo brevior, cubitali minutum. (Corp. long. lin. ¾; alar. lin. 1¼.)

Calenus, Mas. Æneo-viridis, abdomen cupreum, antennaæ pedes fulvi, femora viridia, alæ limpidæ.

æneo-viride, nitens, scitissime squameum, parce hirtum: breve, thorace latius; vertex latus; frons impressa. oculi rufi, mediocres, non extantes: antennæ nigræ, subcla longiores; articulus 1us longus, gracilis, 2us longicyathi 3us et 4us minimi; 5us sequentes ad 10um subæquales; clava articulo 10° multo longior: thorax ovatus: prothorax transversus, mesothoracis scutum longitudine latius; parapsidum suturæ scutellum subconicum: paraptera magna; metathorax brevi declivis: petiolus brevissimus: abdomen cupreum, sublineare, læve, fere glabrum, thorace multo angustius et paullo brevius: simplices, subæquales; coxæ virides; femora viridia, apice fulva; fusci; mesotibiæ fuscæ; metatibiæ piceo-cinctæ: alæ limpidæ; piceæ; nervi fusci; nervus humeralis ulnari duplo longior, radia non brevior, cubitali paullo longior; stigma minutum. (Corp. long. alar. lin. 1¾.)

Alcetas, Mas. Viridis, antennæ nigræ, pedes flavi, alæ fulvo .

Corpus breve, convexum, viride, nitens, subtilissime squameum, parce caput transversum, breve, thorace vix latius: vertex latus; frons impressa, abrupte declivis; oculi rufi, mediocres, non extantes: antennæ graciles, submoniliformes, nigræ, apice acuminatæ, thorace non longiores; articulus 1us longus, sublinearis; 2us et sequentes usque ad clavam breves: thorax ovatus, cupreo-varius: prothorax brevissimus, supra non conspicuus: mesothoracis scutum longitudine latius; parapsidum suturæ bene determinatæ, postice approximatæ: scutellum obconicum: metathorax magnus, declivis, obconicus: petiolus sat longus: abdomen breviovatum, læve, fere planum, thorace multo brevius: pedes pallide flavi, graciles, subæquales; coxæ virides; ungues et pulvilli fusci: alæ fulvo-tinctæ, latæ; squamulæ piceæ; nervi flavi; nervus ulnaris humerali multo longior, radialis vix ullus, cubitalis brevissimus. (Corp. long. lin. 2/3; alar. lin. 1¼.)

Closterocerus Cercius, Fem. Viridis, abdominis discus purpureus, antennæ nigræ, pedes nigri, tarsi flavi, alæ fusco-nebulosæ.

Corpus sublineare, fere planum, læte viride, nitens, scitissime squameum, parce hirtum: caput transversum, brevissimum, impressum, thorace non latius; frons abrupte declivis: oculi rufi, mediocres, non extantes: antennæ nigræ, graciles, submoniliformes, apice acuminatæ, thorace paullo breviores; articulus 1us longus, sublinearis; 2us sequentes usque ad clavam breves, subæquales: thorax ovatus: prothorax brevissimus, supra non conspicuus: mesothoracis scutum longitudine latius; parapsidum suturæ non bene determinatæ; scutellum æneo-viride, obconicum: metathorax brevis, postice angustus: petiolus brevissimus: abdomen ovatum, subtus carinatum, thorace brevius, non latius; discus purpureus: pedes nigri, simplices, subæquales; coxæ virides; genua fulva; tibiæ apice flavæ; tarsi flavi, apice fusci: alæ sublimpidæ, ciliatæ, fusco obsolete nebulosæ; squamulæ piceæ; nervi fulvi; nervus ulnaris humerali multo longior, radialis vix ullus, cubitalis brevissimus, in alæ discum abrupte declivis; stigma minutum. (Corp. long. lin. ¾; alar. lin. 1¼.)

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Bellerus (N.G.) Anaitis (Haliday MSS.), Mas. Viridis, antennæ nigræ, pedes virides, tarsi fusci, alæ subfuscæ.

Corpus gracile, sublineare, convexum, viride, nitens, scitissime squameum, parce hirtum: caput transversum, brevissimum, thorace vix latius; vertex sat latus; frons impressa, abrupte declivis: uli rufi, mediocres, non extantes: antennæ 12-articulatæ?, graciles, iliformes, nodosæ, verticillatopilosæ, corpore paullo breviores; articulus 1us longus, sublinearis; us brevis; 3us et sequentesusque ad 9um verticillo setarum ornati; 5us et sequentium quisque ad 9um gracillimi, lineares, apice ubi setæ insident in clavam globosam latescentes; clava triarticulata, fusiformis, acuminata: thorax longiovatus: prothorax transversus, sat magnus, antice angustus: mesothoracis scutum longitudine latius; parapsidum suturæ optime determinatæ, postice approximatæ; paraptera et epimera magna; scutellum subovatum: metathorax mediocris, obconicus, declivis: petiolus brevissimus: abdomen sublineare, planum, læve, thorace angustius et multo brevius: abdomen sublineare, planum, læve, thorace angustius et multo brevius: pedes virides, simplices, subæquales; trochanteres picei; genua fusca; tarsi 4-articulati, fusci; ungues et pulvilli minuti; protarsi basi flavi; alæ subfuscæ; squamulæ piceæ; nervi fusci; nervus ulnaris humerali multo longior, radialis humerali paullo brevior, cubitali plus duplo longior; stigma minutum. (Corp. long. lin. ¾; alar. lin. 1 1/3.)

Tetrastichus Naucles, Fem. Ater, abdomen nigro-æneum, antennæ piceæ, pedes fulvi, femora nigra, metatibiæ fusco-cinctæ, alæ sublimpidæ.

Corpus validum, convexum, atrum, nitens, læve, parce hirtum: caput transversum, brevissimum, thoracis latitudine; vertex sat latus; frons impressa, abrupte declivis: oculirufi, mediocres, non extantes: antennæ piceæ, subclavatæ, thorace vix longiores: thorax ovatus: prothorax brevissimus, supra vix conspicuus: mesothoracis scutum magnum, longitudine non latius; parapsidum suturæ bene determinatæ, remotæ, postice approximatæ; scutellum bisulcatum, semicirculum fingens: metathorax brevis, transversus, declivis: petiolus brevissimus: abdomen ovatum, nigro-æneum, supra planum, subtus carinatum, apice acuminatum, thorace paullo longius: pedes fulvi, simplices, subæquales; coxæ nigræ; femora nigra, apice fulva; tarsi apice fusci; metatibiæ fusco-cinctæ: alæ sublimpidæ, pubescentes; squamulæ piceæ; nervi fusci; nervus ulnaris humerali fere duplo longior, radialis nullus, cubitalis sat longus; stigma minutum. (Corp. long. lin. 1; alar. lin. 1½.)

Tetrastichus Norax, Fem. Ater, antennæ piceæ, pedes flavi, femora nigra, alæ limpidæ.

Præcedente gracilior. Corpus sublineare, convexum, atrum, nitens, læve, parce hirtum: caput transversum, brevissimum, thoracis latitudine; vertex sat latus; frons impressa, abrupte declivis: oculi rufi, mediocres, non extantes: antennæ piceæ, subclavatæ, thorace non longiores; articulus 1us niger: thorax ovatus: prothorax brevissimus, supra vix conspicuus: mesothoracis scutum longitudine non latius; parapsidum suturæ remotæ, bene determinatæ, postice approximatæ; scutellum bisulcatum, semicirculum fingens: metathorax brevis, declivis: petiolus brevissimus: abdomen ovatum, supra planum, subtus carinatum, apice acuminatum, thorace non longius: pedes flavi, simplices, subæquales; coxæ nigræ; femora nigra, apice flava; tarsi apice fusci: alæ limpidæ; squamulæ piceæ; nervi fulvi; nervus ulnaris humerali duplo longior, radialis nullus, cubitalis sat longus; stigma minutum. (Corp. long. lin. ¾; alar. lin. 1¼.)


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Citation: John van Wyhe, editor. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

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