RECORD: Walker, F. 1843. Descriptions of Chalcidites discovered by C. Darwin, Esq. Annals and Magazine of Natural History 12: 45-46.
REVISION HISTORY: Scanned by John van Wyhe, transcribed (single key) by AEL Data 6.2008. RN1
NOTE: See the record for this item in the Freeman Bibliographical Database by entering its Identifier here.
VII.—Descriptions of Chalcidites discovered by C. DARWIN, Esq. By FRANCIS WALKER, Esq., F.L.S.
Thoracantha Latreillii, Fem. Nigro-cyanea, antennæ piceæ, pedes fulvi, femora fusca, alæ limpidæ.
Thoracantha Latreillii, Guèrin, Icon. Règne Anim., Insectes, pl. 67.
Corpus gibbum, altum, compressum, incurvum, convexum, nigro-cyaneum, nitens, glabrum: caput parvum, transversurn, declive subtilissime striatum; vertex sat latus; frons impressa, ad os angustior: oculi rufi, mediocres, non extantes: ocelli 3, remoti, rufi, triangulum fingentes; medius perparum antepositus: antennæ piceæ, parvæ, graciles, extrorsum crassiores, apice fulvæ capite vix longiores; articulus 1us longus, sublinearis; 2us cyathiformis; 3us et 4us minimi; 5us et sequentes breves, approximati; clava conica, 10° duplo longior: thorax maximus: prothorax brevissimus; sternum parvum; dorsum minimum, supra non conspicuum: mesothoracis scutum transverse striatum, longitudine latius, per medium obsolete sulcatum; parapsidum suturæ bene determinatæ, postice approximatæ; scutellum transversum, breve, subtilissime regulosum, per medium obsolete sulcatum: metathoracis dorsum maximum, subtilissime regulosum, quasi bipartitum; pars antica longitudine vix latior, per medium obsolete sulcata; pars postica longior, fissa; fissura postice dehiscens, similitudine Melvidis elytrorum, abdominis apicem attingens: petiolus vix conspicuus: abdomen compressum, apice subtilissime rugulosum, basi læve, thorace paullo brevius et angustius; segmentum 1um dorsum et sternum omnino obtegens: pedes fulvi, graciles, simplices, subæquales; coxæ nigro-cyaneæ; trochanteres picei; femora fusca; tarsis articuli 1° ad 4um curtantes, 5us 4° paullo longior; ungues et pulvilli minuti: alæ limpidæ parvæ; squamulæ fulvæ; nervi albidi, vix conspicui, basi fulvi; nervus humeralis ulnari multo longior, radialis vix ullus, cubitalis brevissimus; stigma minimum. (Corp. long. lin. 2; alar. lin. 3.).
Brazil.
* I have retained the name of Mus. arviculoides, Pictet, which was written on the label of the specimen when purchased.
Micromelus Silanus, Fem. Æneo-niger, cyaneo-varius, antennæ fulvæ, pedes fulvi, alæ fuscæ.
Corpus æneo-nigrum, subtus cyaneo-nigrum, breve, latum, convexum, parum nitens, scitissime squameum, parce hirtum: caput transversum, breve, thorace latius: vertex latus; frons impressa, abrupte declivis: oculi picei, mediocres, non extantes: ocelli vertice triangulum fingentes; medius perparum antepositus: antennæ fulvæ, ad os insertæ, basi graciles lineares: os piceum: thorax ovatus: prothorax brevissimus: mesothoracis scutum longitudine latius; parapsides scuto fere in unum confusæ; paraptera et epimera magna; scutellum subrhombiforme, postice latius: metathorax brevis, declivis, postice angustus: petiolus brevissimus: abdomen subrotundum, æneum, nitens, læve, supra planum, subtus carinatum, thorace paullo latius et multo brevius: pedes fulvi, simplices, subæquales: alæ fuscæ, mediocres; squamulæ piceæ; nervi fusci; nervus humeralis ulnari duplo longior, radialis ulnari brevior cubitali vix longior, cubitalis sat longus; stigma mediocre. (Corp. long. lin. ¾; alar. lin. 1¼.)
Mount Wellington.
VIII.—Descriptions of Chalcidites discovered in St. Vincent's Isle by the Rev. Lansdown Guilding. By FRANCIS WALKER, Esq., F.L.S.
Decatoma Oretilia, Mas et Fem. Fulvo-flava ferrugineo-varia, antennæ fulvæ, pedes flavi, alæ limpidæ.
Corpus convexum, sublineare, fulvo-flavum, nitens, subtilissime punctatum, parce hirtum: caput transversum, breve, thorace paullo latius; vertex latus; frons impressa, abrupte declivis: oculi rufi, mediocres, non extantes: antennæ fulvæ, clavatæ, thorace non longiores; articulus 1us longus, gracilis; 2us cyathiformis; 3us et 4us minimi; 5us et sequentes breves, usque ad 9um latescentes; clava fusiformis, acuminata, articulo 9° multo latior et plus duplo longior: thorax ovatus: prothorax maximus, transversus, subquadratus, postice ferrugineo-maculatus: mesothoracis scutum brevissimum; parapsidum suturæ vix conspicuæ; scutellum subrotundum; discus ferrugineus: metathorax transversus, brevis: petiolus brevis: abdomen ovatum, læve, mari thoracis longitudine, fem. thorace paullo longius subtus carinatum apice acuminatum fuscum; vitta per dorsum interrupta fusca: pedes pallide flavi, simplices, subæquales: alæ limpidæ; squamulæ fulvæ; nervi fulvi; nervus humeralis ulnari fere duplo longior, radialis ulnari non brevior cubitali plus duplo longior; stigma minutum. (Corp. long. lin. 1; alar. lin. 1½.)
Pteromalus Helice, Fem. Æneo-viridis, antennæ fulvæ, pedes flavi, alæ limpidæ.
Corpus convexum, æneo-viride, nitens, scitissime squameum, parce hirtum: caput transversum, breve, thorace latius: vertex latus; frons impressa, abrupte declivis: oculi rufi, mediocres, non extantes: antennæ fulvæ, extrorsum crassiores, thorace vix longiores; articulus 1us longus, gracilis; 2us cythiformis; 3us et 4us minimi; 5us et sequentes breves, usque ad 10um latescentes; clava longiconica, acuminata, articulo 10° duplo longior: thorax ovatus: prothorax transversus, brevissimus: mesothoracis scutum longitudine latius; parapsidum suturæ vix conspicuæ; scutellum subconicum, antice truncatum: metathorax obconicus, mediocris, declivis: petiolus brevissimus: abdomen fusiforme, læve, supra depressum, subtus carinatum, apice acuminatum, thorace longius et angustius: pedes læte flavi, simplices, subæquales: alæ limpidæ; squamulæ fulvæ; nervi flavi; nervus humeralis
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
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