Morphology and Chaetotaxy of Larval Hydraenidae (Coleoptera) I: Genus<i>Limnebius</i>Leach, 1815 Based on a Description<i>of Limnebius cordobanus</i>d'Orchymont

Delgado, Juan A.; Soler, A. G.

doi:10.1080/01650429709361634

Cited by 18 publications

(44 citation statements)

References 8 publications

(12 reference statements)

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“…Legs (Fig. 14) very elongate, especially tarsungulus, with typical chaetotaxy found in other hydraenid larvae (Delgado & Soler, 1997c), seta Ad1 present and long. Circular annular spiracles on mesothorax located on lateral short tubercles.…”

Section: Thoraxmentioning

confidence: 99%

“…Cephalic eggbursters are found only in the first-instar larvae of Ochthebiinae. Cephalic eggs-bursters are absent in Limnebius (Delgado & Soler, 1997c), Hydraena (Delgado & Soler, 1996b), Podaena (Delgado & Palma, 2004) and Ptiliidae (Grebennikov & Beutel, 2002). CI = 1.…”

Section: Cladistic Analysismentioning

confidence: 99%

“…Within Hydraenidae two distinct conditions occur with regard to the number of cephalic glands. Most known larvae present only one pair of well developed cephalic glands, including Limnebius (Delgado & Soler, 1997c) and most Ochthebiinae, except for Ochthebius auropallens Fairmaire, 1879 Delgado & Soler (1997b). CI = 1.…”

Section: Cladistic Analysismentioning

confidence: 99%

“…in Table 1. The larva of Limnebius cordobanus d'Orchymont, 1938 (Delgado & Soler, 1997c) was used as the outgroup. Since the monophyly of the ingroup is not in doubt (Beutel et al, 2003, Perkins, 1997 we used only one outgroup.…”

Section: Cladistic Analysismentioning

confidence: 99%

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Description of the larval stages of Gymnochthebius jensenhaarupi and phylogenetic analysis of the relationships with other species of the subfamily Ochthebiinae (Coleoptera: Hydraenidae)

Delgado¹,

Archangelsky²

2005

Eur. J. Entomol.

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Abstract. The three larval instars of Gymnochthebius jensenhaarupi (Knisch, 1924) are described and illustrated, including a detailed analysis of their chaetotaxy and porotaxy. The specimens used in this study were collected with adults of G. jensenhaarupi and have been identified as such by association. Comparative notes on the morphology of these larvae with other species of the subfamily Ochthebiinae are given. A hypothesis of phylogenetic relationships between G. jensenhaarupi and other members of Ochthebiinae with thoroughly described larvae is presented. The monophyly of Ochthebiinae is supported by additional larval features. On the other hand Ochthebius, as currently composed, seems to by paraphyletic. Gymnochthebius Orchymont, 1943 is confirmed as the sister group of Aulacochthebius Kuwert, 1887.

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Section: Thoraxmentioning

confidence: 99%

Section: Cladistic Analysismentioning

confidence: 99%

Section: Cladistic Analysismentioning

confidence: 99%

Section: Cladistic Analysismentioning

confidence: 99%

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Description of the larval stages of Gymnochthebius jensenhaarupi and phylogenetic analysis of the relationships with other species of the subfamily Ochthebiinae (Coleoptera: Hydraenidae)

Delgado¹,

Archangelsky²

2005

Eur. J. Entomol.

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“…When working with the first instar larvae of Ithone, Oliarces and Polystoechotes, I noticed that they possess a rather constant set of sensillae, in many respects similar to that described in various groups of Coleopteran larvae: Grebennikov (2004) for Archostemata; Bousquet & Goulet (1984) and Grebennikov & Maddison (2004) for Carabidae; Alarie & Balke (1999) for Dytiscidae; Ashe & Watrous (1984) and Thayer (2000) for Staphylinidae; Kovarik & Passoa (1993) for Histeridae; Grebennikov & Beutel (2002) for Ptiliidae; Delgado & Soler (1996, 1997 for Hydraenidae;and Wheeler (1990) and Kilian (1998) for Leiodidae. Consequently, it is reasonable to assume that the chaetotaxy in larval Neuroptera might be as phylogenetically informative as it is in the coleopteran groups mentioned above.…”

mentioning

confidence: 99%

Grub-like larvae of Neuroptera (Insecta): a morphological review of the families Ithonidae and Polystoechotidae and a description of Oliarces clara

Grebennikov¹

2004

Eur. J. Entomol.

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Abstract. First instar larvae of Polystoechotidae sp., and first and older instar larvae of Ithone fusca Newman and Oliarces clara Banks are described; those of the latter species for the first time. The family Ithonidae is unique in Neuroptera in having grub-like C-shaped older instar larvae. Potential morphological synapomorphies of mature larvae of Ithonidae and Polystoechotidae are the mandibles with exceptionally broad base and markedly thickened apical part; antennal curvature is fixed and rather characteristic in shape; ocular area reduced or absent; cardo and stipes are markedly enlarged with stipes much larger than the cardo; presence of gula (Polystoechotes) or some traces of gular sclerotisation (Ithone, Oliarces). Larvae of Ithone have numerous larval autapomorphies such as C-shaped first instar larva with reduced abdominal segments IX and X; fused tibia and tarsus on all legs and dorsally directed maxillae. Larvae of Ithonidae and Polystoechotidae have some similarities with those of the family Dilaridae, such as no or one pair of stemmata; body not flattened dorso-laterally; mesothoracic spiracle located on fold between prothorax and mesothorax; short and stout mandibles widened at base and tapered apically; robust and elongated fore legs; tarsi on all legs markedly shortened; more than three larval instars. Older instar larvae of Ithonidae are markedly similar to those of the beetle superfamily Scarabaeoidea in having a C-shaped body, at least in older instars; body round in cross-section; sclerites on thorax and abdomen reduced and body surface membranous; each thoracic and abdominal segment subdivided dorsally into two or three fleshy lobes; ventral surface of abdominal apex bears a field of short and stout setae. Chaetotaxy pattern in first instar Ithonidae and Polystoechotidae larvae suggests that it is possible to homologise the sensilla in different genera and provide a system of sensilla designation for Neuroptera larvae. This study is illustrated with 36 morphological drawings.

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Distribution Patterns and Habitat Characterization of Elmidae and Hydraenidae (Insecta: Coleoptera) in the Weidlingbach Near Vienna, Austria

Dietrich

Waringer

1999

International Review of Hydrobiology

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A total of 870 adult and 831 larval Elmidae and Hydraenidae were caught from September 1995 to September 1996 at the Weidlingbach, a fourth order tributary of the Danube near Vienna, Austria, using a Heß sampler at 14 sampling stations from source to mouth. Elmis maugetii (Latreille) and Riolus subviolaceus (Müller) accounted for 66.3% of the total, whereas Hydraena gracilis (Germar) was the most abundant Hydraenidae species.Based on head width, instars 1–6 were collected in E. maugetii, instars 2–6 in R. subviolaceus and instars 3–6 in Limnius volckmari (Panzer) and Riolus cupreus (Müller); from the remaining species, only instars 4–6 were sampled.E. maugetii was most abundant on coarse, moss‐covered substrates (median = 22.2 mm) exposed to high water velocity (median = 69.4 cm/s; range = 6.0–117.6 cm/s); the latter was also true for R. subviolaceus although it favoured smaller sediment grain sizes (median = 10.7 mm). Sites exposed to only moderate flow and with abundant filiform algae were preferred by Esolus parallelepipedus (Müller) and L. volckmari, whereas the Hydraenidae species, Esolus angustatus (Müller), R. cupreus and Oulimnius tuberculatus (Müller) were collected mostly at sites with moderate current speed and abundant moss‐covered pebbles of various size.Species richness and population density increased from source to mouth. At the spring sampling site Elmidae and Hydraenidae were completely lacking.

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Morphology and Chaetotaxy of Larval Hydraenidae (Coleoptera) I: GenusLimnebiusLeach, 1815 Based on a Descriptionof Limnebius cordobanusd'Orchymont

Cited by 18 publications

References 8 publications

Description of the larval stages of Gymnochthebius jensenhaarupi and phylogenetic analysis of the relationships with other species of the subfamily Ochthebiinae (Coleoptera: Hydraenidae)

Description of the larval stages of Gymnochthebius jensenhaarupi and phylogenetic analysis of the relationships with other species of the subfamily Ochthebiinae (Coleoptera: Hydraenidae)

Grub-like larvae of Neuroptera (Insecta): a morphological review of the families Ithonidae and Polystoechotidae and a description of Oliarces clara

Distribution Patterns and Habitat Characterization of Elmidae and Hydraenidae (Insecta: Coleoptera) in the Weidlingbach Near Vienna, Austria

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