Morphology of olfactory sensilla and its role in host plant recognition by Neomegalotomus parvus (Westwood) (Heteroptera: Alydidae)

Ventura, Maurício Ursi; Panizzi, Antônio R.

doi:10.1590/s1516-89132005000500012

Cited by 25 publications

(31 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar results were reported for Eurygaster maura (L.) (Scutelleridae) (Romani and Rossi 2009) and Nezara viridula (L.) (Pentatomidae) (Brézot et al 1997). In contrast, in Neomegalotomus parvus (Westwood) (Alydidae) and Lygus lineolaris (Palisot de Beauvois) (Miridae), male antennae were larger than female antennae (Chinta et al 1997) (Ventura and Panizzi 2005). Typically, antennae in Heteroptera are formed by a scape, pedicel, and a flagellum with two flagellomeres.…”

Section: Discussionsupporting

confidence: 68%

“…The flagellum of L. zonatus is formed by two fiagellomeres that hold the largest number of sensilla. Similarly, two flagellomeres were observed in N. parvus (Ventura and Panizzi 2005), Panstrongylus inegistus (Burmeister) (Reduviidae) (Villela et al 2005), Coreus marginatus (L.) (Coreidae), Ne. viridula (Pentatomidae) (Brézot et al 1997), and Rlwdnius prolixus (Stal) (Reduviidae) (Akent'eva2008).LikeinL.…”

Section: Discussionmentioning

confidence: 79%

“…Whereas in P. megistus, the trichoid sensillum was subdivided in thin-walled trichoid and thick-walled trichoid (Villela et al 2005). The basiconic sensilla found in P. inegistus (Villela et al 2005) and those in N. parvus described by Ventura and Panizzi (2005) are similar in both size and shape to the Lst identified in L. zonatus.…”

Section: Discussionmentioning

confidence: 87%

“…viridula (Pentatomidae) (Brézot et al 1997), and Rlwdnius prolixus (Stal) (Reduviidae) (Akent'eva2008).LikeinL. zonatus, the greatest number of sensilla are found on the final flagellomere (Ventura andPanizzi 2005, Akent'eva 2008). This could be an adaptation to improve olfaction, as identified in Oncopeltus fasHatus (Dallas) (Lygaeidae) (Yersen and Ball 1959) and Oxycarenus laetus Kirby (Lygaeidae) (Raman 1988).…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Sense Organs on the Antennal Flagellum of Leptoglossus zonatus (Heteroptera: Coreidae)

Gonzaga-Segura

Váldez-Carrasco

Castrejón-Gómez

2013

Annals of the Entomological Society of America

View full text Add to dashboard Cite

For the first time, antennal sensorial organs of Leptoglossus zonatus (Dallas) (Heteroptera: Coreidae) are described through scanning electron microscopy. The antennae are formed by a scape, pedicel, and a flagellum that is composed of two flagellomeres and is the main bearer of sensorial organs. Five types of sensory structures were identified: Trichoid sensilla, basiconic sensilla, coeloconic sensilla, campaniform sensilla, and placoid sensilla. Trichoid sensilla were divided into five subtypes. The large striated trichoid sensilla have almost straight longitudinally striated cuticles and were present throughout the antenna. Flattened trichoid sensilla were variable-sized curved hairs distributed from the base ofthe scape to the distal end ofthe first flagellomere. Small striated trichoid sensilla were found mainly on the antenna distal flagellomeres. Smooth trichoid sensilla were located at the distal end of the scape and along the entire length of the pedicel, and are the least abundant type on the antenna. Small smooth trichoid sensilla were found precisely on the joints between the pedicel and scape. Based on size and shape, the basiconic sensilla were also divided into five subtypes (Bsl, Bs2, Bs3, Bs4, and Bs5). These all are rod-shaped. Coeloconic sensilla were found exclusively on the second flagellomere ofthe flagellum. Just one campaniform sensilla on each antenna was located on the second flagellomere ofthe flagellum. Finally, a group of 10 oval placoid organs were found at the scape base, in proximity to the joint connecting the antenna to the insect's head.

show abstract

Section: Discussionsupporting

confidence: 68%

Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Sense Organs on the Antennal Flagellum of Leptoglossus zonatus (Heteroptera: Coreidae)

Gonzaga-Segura

Váldez-Carrasco

Castrejón-Gómez

2013

Annals of the Entomological Society of America

View full text Add to dashboard Cite

show abstract

“…Several studies on the nymphal and adult biology, population dynamics, oviposition, and feeding preferences of N. parvus on selected cultivated and noncultivated legumes (e.g., soybean, pigeon pea, lablab, green bean, indigo, lupin, and cowpea) have been published (Panizzi 1988 ;Ventura and Panizzi 1997 ;Santos and Panizzi 1998a ;Ventura et al 2000a , b ;Ventura and Panizzi 2003, 2004, 2005. In general, this alydid is most associated with mature soybean and pigeon pea plants.…”

Section: Neomegalotomus Parvus (Westwood)mentioning

confidence: 99%

Broad-Headed Bugs (Alydidae)

Panizzi

Schaefer²

2015

True Bugs (Heteroptera) of the Neotropics

View full text Add to dashboard Cite

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 family has 53 genera and about 250 species; in the Neotropics, there are 21 genera. Alydids are small (8-20 mm), slender, with a triangular head; nymphs of alydines mimic ants, the adults of some Micrelytrini also mimic ants. The most studied species in the Neotropics is the alydine Neomegalotomus parvus (Westwood), usually associated with legumes, and may be a pest on soybean. Other common genera include Hyalymenus Amyot & Serville, Stenocoris Burmeister, Cydamus Stål, and Trachelium Herrich-Schäffer. Studies on taxonomy and bioecology on alydids of the Neotropics are needed.

show abstract