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Abstract:

The three larval instars of Thermonectus succinctus (Aubé 1838) are described and illustrated for the first time, emphasizing the morphometry and chaetotaxy. Biological notes are included. Thermonectus Dejean is distinguished from other Aciliini genera by its slightly bifid median process of the prementum, which bears two spine-like setae (LA8). First instars of T. succinctus differ from those of Acilius Leach and Graphoderus Dejean in the lower number of additional anterodistal setae on the femur. The shape of seta TA1 and the presence of an additional posterior pore on the tibia separate first instars of Graphoderus from those of Acilius and T. succinctus. Regarding the mature larva, T. succinctus differs from T. alfredi Griffini 1898 in its smaller size, from T. basillaris (Harris 1829) in the lack of a row of minute hairs along the internal margin of the galea, and from T. nigrofasciatus ornaticollis (Aubé 1838) in the shorter length of seta LA8. © 2005 Taylor & Francis.

Registro:

Documento: Artículo
Título:Larval morphology of Thermonectus succinctus (Aubé 1838) (Coleoptera: Dytiscidae: Dytiscinae), with biological notes and chaetotaxic analysis
Autor:Michat, M.C.; Torres, P.L.M.
Filiación:Entomología, Dpto. de Biodiversidad Y Biología Experimental, Universidad de Buenos Aires, Argentina
Laboratorio de Entomología, Departamento de Biodiversidad Y Biología Experimental, Ciudad Universitaria, Av. Intendente Güiraldes s/n, C1428EHA, Buenos Aires, Argentina
Palabras clave:Aciliini; Biology; Chaetotaxy; Larval morphology; Thermonectus succinctus; Aciliini; Acilius; Coleoptera; Dytiscidae; Dytiscinae; Graphoderus; Thermonectus; Thermonectus basillaris; Thermonectus nigrofasciatus ornaticollis
Año:2005
Volumen:27
Número:4
Página de inicio:281
Página de fin:292
DOI: http://dx.doi.org/10.1080/01650420500294021
Título revista:Aquatic Insects
Título revista abreviado:Aquat. Insects
ISSN:01650424
CODEN:AQIND
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01650424_v27_n4_p281_Michat

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Citas:

---------- APA ----------
Michat, M.C. & Torres, P.L.M. (2005) . Larval morphology of Thermonectus succinctus (Aubé 1838) (Coleoptera: Dytiscidae: Dytiscinae), with biological notes and chaetotaxic analysis. Aquatic Insects, 27(4), 281-292.
http://dx.doi.org/10.1080/01650420500294021
---------- CHICAGO ----------
Michat, M.C., Torres, P.L.M. "Larval morphology of Thermonectus succinctus (Aubé 1838) (Coleoptera: Dytiscidae: Dytiscinae), with biological notes and chaetotaxic analysis" . Aquatic Insects 27, no. 4 (2005) : 281-292.
http://dx.doi.org/10.1080/01650420500294021
---------- MLA ----------
Michat, M.C., Torres, P.L.M. "Larval morphology of Thermonectus succinctus (Aubé 1838) (Coleoptera: Dytiscidae: Dytiscinae), with biological notes and chaetotaxic analysis" . Aquatic Insects, vol. 27, no. 4, 2005, pp. 281-292.
http://dx.doi.org/10.1080/01650420500294021
---------- VANCOUVER ----------
Michat, M.C., Torres, P.L.M. Larval morphology of Thermonectus succinctus (Aubé 1838) (Coleoptera: Dytiscidae: Dytiscinae), with biological notes and chaetotaxic analysis. Aquat. Insects. 2005;27(4):281-292.
http://dx.doi.org/10.1080/01650420500294021