News Update on Heteroptera Research: Dec – 2019

The Scent Glands of Heteroptera

The scent glands area unit stratum glands and, as invaginations shaped from cuticle, area unit lined with a cuticle continuous therewith of body wall. there’s wide variation within the details of scent organ structure and performance among animal order. This chapter reviews the character of those details and their significance for physiological and ecological studies on animal order. The scent glands encompass covering similar in basic structure to it forming the body wall. There area unit 3 basic layers; a comparatively skinny, animate thing, basal layer referred to as basement membrane; a middle layer consisting of animal tissue cells organized as in a very monolayer; a comparatively thick, animate thing, top layer—the organ lining cuticle or organ epidermal membrane. Postulated functions embrace defense against predators; defense against microorganisms; and unharness of specific patterns of behavior. [1]

How to know the true bugs (Hemiptera-Heteroptera).

This is an additional volume during a series from the USA [see preceding abstract, etc.] coping with the flora and fauna of North America. it’s been ready each for the coed and for the final bug-hunter to supply a synoptic manual to assist within the identification of actuality bugs of the Hemiptera. additionally to general chapters on morphology, biology, collection and preservation, it contains illustrated keys to the adults and nymphs of yankee families of Hemiptera (including teams of agricultural and of medical and veterinary importance), to several of the genera in these families and to representative species. a listing of vernacular names with their Latin equivalents is enclosed, as is associate index and wordbook. [2]

Alien True Bugs of Europe (Insecta: Hemiptera: Heteroptera)

This paper reviews the alien (non-native, non-indigenous, exotic) hemipterous insect (Heteroptera) species in Europe. 42 established alien Heteroptera ar recognized, of that twelve species ar alien to Europe (originating outside Europe: eight from North America, 3 from the japanese Palaearctic, one from New Zealand), twenty four species ar alien among Europe (translocated among Europe), and 6 cryptogenic species ar of unknown origin. Since 1990 Associate in Nursing approximate arrival rate of seven species per decade has been determined. A recent trend of magnified introductions from North America to Europe is usually recommended. the foremost vital pathway of alien Heteroptera is translocation as contaminants (49 %), typically with decorative plants, followed by unintentional introduction through natural diffusion (unaided) across political borders among Europe (28 %), and translocation as stowaways among a transport vector (21 %). [3]

Bioactivity of the Cymbopogon citratus (Poaceae) essential oil and its terpenoid constituents on the predatory bug, Podisus nigrispinus (Heteroptera: Pentatomidae)

Podisus nigrispinus metropolis (Heteroptera: Pentatomidae), discharged in biological management programs, may be a predator of lepidopterous insect and Coleopteran species. Lemongrass volatile oil and its constituents will be deadly to the present natural enemy. the main constituents of lemongrass volatile oil square measure neral (31.5%), citral (26.1%), and geranyl acetate (2.27%). Six concentrations of lemongrass volatile oil and of its citral and geranyl acetate constituents were applied to the thorax of P. nigrispinus nymphs and adults. The walking and metastasis behavior of the P. nigrispinus third-instar nymphs, treated with citral and geranyl acetate at the LD50 and LD90 doses, were analyzed with video and respirometer. The lemongrass volatile oil toxicity exaggerated from first- to fifth-instar P. nigrispinus nymphs. [4]

Biology and Dispersal of the Watermelon Bug Coridius viduatus (F.) (Heteroptera: Dinidoridae) on Different Cucurbit Crops, in North Darfur State, Sudan

The watermelon bug, Coridius viduatus (F.) could be a real threat to watermelon genus Citrullus lanatus (Thunb.) in western Sudan, wherever over eightieth of the population depends economically on agriculture. so as to beat this constraint, a study was dispensed at University of Alfashir, North Darfur State, to research biology, food preference and spreading of watermelon bug. A survey was conducted on season (2013/2014) to see the movement and spreading of the watermelon bug within the space around Alfashir. Biology of the bug was studied beneath laboratory conditions, preoviposition, oviposition, incubation and post oviposition periods were calculated. Food preference and non-preference by the bug to four watermelon varieties and tow Cucurbitaceae ones were additionally evaluated; a field experiment was conducted, a irregular complete block style was used. [5]

Reference

[1] Staddon, B.W., 1979. The scent glands of Heteroptera. In Advances in insect physiology (Vol. 14, pp. 351-418). Academic Press. (Web Link)

[2] Slater, J.A. and Baranowski, R.M., 1978. How to know the true bugs (Hemiptera-Heteroptera). William C. Brown Co.. (Web Link)

[3] Rabitsch, W., 2008. Alien true bugs of Europe (Insecta: Hemiptera: Heteroptera). Zootaxa, 1827(1), (Web Link)

[4] Bioactivity of the Cymbopogon citratus (Poaceae) essential oil and its terpenoid constituents on the predatory bug, Podisus nigrispinus (Heteroptera: Pentatomidae)
Bruno Pandelo Brügger, Luis Carlos Martínez, Angelica Plata-Rueda, Barbara Monteiro de Castro e Castro, Marcus Alvarenga Soares, Carlos Frederico Wilcken, Amélia Guimarães Carvalho, José Eduardo Serrão & José Cola Zanuncio
Scientific Reports volume 9, (Web Link)

[5] Gubartalla, A. E. Z., Ibrahim, I. and Solum, S. M. (2019) “Biology and Dispersal of the Watermelon Bug Coridius viduatus (F.) (Heteroptera: Dinidoridae) on Different Cucurbit Crops, in North Darfur State, Sudan”, Asian Research Journal of Agriculture, 10(3), (Web Link)

Editor

Leave a Reply

Your email address will not be published.