Broad-Headed Bugs (Alydidae)

Natuhara, Yosihiro; Schaefer, Carl W.; Panizzi, Antônio R.

doi:10.1201/9781420041859.ch10

Heteroptera of Economic Importance 2000

DOI: 10.1201/9781420041859.ch10

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Broad-Headed Bugs (Alydidae)

Yosihiro Natuhara¹,

Carl W. Schaefer²,

Antônio R. Panizzi³

Abstract: The broad-headed bugs (Alydidae) are divided into two subfamilies, Alydinae and Micrelytrinae, each divided into two tribes, Daclerini and Alydini, and Micrelytrini and Leptocorisini, respectively, The farnily has 53 genera and about 250 species; in the Neotropics, there are 21 genera. Alydids are small (8-20 mm), slen-Itr,with a triangular head; nymphs of alydines mimic ants, the adults of some Micrelytrini also rnirnic ants. The most studied species in the Neotropics is the alydine Neomegalotomus parvus (Wes… Show more

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Cited by 3 publications

References 63 publications

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Locomotion Ability Variation Among Instars of the Bean Bug,Riptortus pedestris(Fabricius) (Heteroptera: Alydidae) Nymphs

2007

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The nymphal locomotion ability (walking distance) of the stenophagous bean bug Riptortus pedestris (Fabricius) was studied in each instar. We measured the walking distance using two systems. The walking distance in photophase was measured for 6 h using a tracking system with a charge coupled device (CCD) camera and computer software. The daily activity of nymphs was measured by an actograph system counting the number of infrared beam intercepts. The actograph data were converted to distance using a linear regression against the data of the tracking system. The longevity of nymphs without food was also studied to estimate the potential walking distance. Using both the tracking and actograph systems, it was determined that first instars walked less than the other instars (only 10.7 m within 6 h). The second to fifth instars could move 20-25 m within 6 h, and this distance did not differ among instar. This indicates that first instars seldom move after hatching in the field. The walking distance for 24 h varied and was greatest for the third instars (80.8 m). The potential longevity of nymphs was found to increase with instar age. Potential locomotion ability (walking distance for 24 hxpotential longevity) was high in the third to fifth instars (approximately 340 m). The potential locomotion ability for the second instars was relatively low compared with the elder instars (approximately 180 m). From these results, nymphs of R. pedestris seem to adapt by identifying feeding site locations after hatching and elder instars may be able to find a novel feeding site after the degradation of previous habitat.

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Locomotion Ability Variation Among Instars of the Bean Bug,Riptortus pedestris(Fabricius) (Heteroptera: Alydidae) Nymphs

2007

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Photoperiodism and seasonal adaptations in some seed-sucking bugs (Heteroptera) in central Japan

Numata¹,

Nakamura²

2002

Eur. J. Entomol.

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Abstract. Photoperiodic responses and their adaptive significance were examined in Riptortus clavatus (Heteroptera: Alydidae), Plautia crossota stali, Dolycoris baccarum, Aelia fieberi, Nezara viridula, Nezara antennata, Graphosoma rubrolineatum, Dybowskyia reticulata, and Eurydema rugosum (Heteroptera: Pentatomidae) in the Kyoto-Osaka area, central Japan. All of these spe cies overwinter as adults in diapause. Although they have similar feeding habits, their photoperiodic responses were quite different. Riptortus clavatus, P. c. stali, D. baccarum and N. viridula showed long-day photoperiodic responses with critical daylengths between 13 and 14 h, and were assumed to have three generations per year. The photoperiodic responses of the other five species were different both from those of the above species and from each other. These results suggested that A. fieberi and N. antennata pro duce two generations per year, and G. rubrolineatum, D. reticulata and E. rugosum have one or two generations per year. Nezara antennata showed a long-day-short-day photoperiodic response with summer adult diapause, which may avoid production of heatsusceptible nymphs in the hottest season. With the exception of N. antennata, the photoperiodic responses resulting in fewer genera tions were shown to be adaptations to dietary conditions in the field.

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First record of the bow-legged bug, Hyalymenus subinermis Van Duzee, 1923 (Hemiptera: Heteroptera: Alydidae), in California, with description of the mimetic immature stages

Adler

Schill

Stolberg

et al. 2022

The Pan-Pacific Entomologist

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Broad-Headed Bugs (Alydidae)

Cited by 3 publications

References 63 publications

Locomotion Ability Variation Among Instars of the Bean Bug,Riptortus pedestris(Fabricius) (Heteroptera: Alydidae) Nymphs

Locomotion Ability Variation Among Instars of the Bean Bug,Riptortus pedestris(Fabricius) (Heteroptera: Alydidae) Nymphs

Photoperiodism and seasonal adaptations in some seed-sucking bugs (Heteroptera) in central Japan

First record of the bow-legged bug, Hyalymenus subinermis Van Duzee, 1923 (Hemiptera: Heteroptera: Alydidae), in California, with description of the mimetic immature stages

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