Microterys zakeri
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| ( Bhuiya , 1998) |
Microterys Zakeri is a wasp of the genus Microterys in the family Encyrtidae . The hyperparasite infects the bowl louse Pulvinaria psidii , which is widespread worldwide andcauses great damagein the cultivation of real guavas and citrus plants in Bangladesh. Microterys zakeri has so far only been found in the Upazila Patiya in the Chittagong district .
description
Microterys Zakeri is a small wasp whose outer appearance other Chalcidoidea corresponds. The body length is between 0.95 and 1.3 millimeters in female wasps, the males are slightly smaller. The head with the mandibles is yellow and the palpi light brown. From the antenna , the scapus is yellow with a light brown stripe on the underside, the pedicellus is yellow and the rest of the flagellum limbs are light brown. The first claval segment is yellow, the second and, if present, the third brown. The basic color of the thorax is russet, the gaster is yellow and the legs, with the exception of the brownish tarsi , are also yellow.
There are three ocelles on the head , which are arranged in an approximately equilateral triangle. The mandibles have three teeth. The scapus of the antenna is slender, the six segments of the flagellum become increasingly longer towards the tip of the antenna. In females, the club at the top is made up of three segments, twice as long as it is wide but shorter than the funiculus, in males the club has only two segments. The pronotum is twice as long as it is wide and has a convex posterior margin. The scutellum is longer than it is wide and longer than the mesoscutum. The forewings are well developed in females and about one and a half times as long as the body. The forewings of the male animals, however, are less developed and shorter, they reach less than three quarters of the body length. On each of the tibiae of the middle legs there is a spur that is slightly shorter than the following first tarsal segment . The gaster is shorter than the thorax and wider than it is long, with a concave front edge and a tapered rear edge that almost obscures the ovipositor .
Way of life
All species of the genus Microterys are parasitoids of plant lice of different families. Microterys Zakeri parasitized the Napfschildlaus Pulvinaria psidii that by feeding on leaves and branches of genuine guava and citrus trees caused significant in orchards of Bangladesh economic damage. Other hosts of Pulvinaria psidii in Bangladesh are the henna , Barringtonia acutangula , Lagerströmien and Alstonia scholaris . Pulvinaria psidii is distributed worldwide and affects host plants from more than 50 families . In Florida , it is considered a major pest of ornamental plants , especially species of the fig ( Ficus ) genus . In the South Pacific are coffee and pepper damaged.
distribution
Microterys Zakeri has so far only at its type location , the Upazila (Patiya 18 '0' 22 ° N , 91 ° 59 '0 " O ) in the district Chittagong been detected. There it parasitizes its type host Pulvinaria psidii , a cup scale insect, on the leaves and branches of real guavas .
Systematics and taxonomy
Microterys zakeri is one of more than 200 species of the genus Microterys in the Microteryini tribe . This belongs to the subfamily Encyrtinae the Encyrtidae , a family of jewel wasps whose species almost without exception parasites of insects , spiders , mites are or ticks.
It was first described in 1998 as Aschitus zakeri by the Bangladeshi entomologist Badrul Amin Bhuiya from the University of Chittagong . The holotype is a female specimen collected by Bhuiya in February 1991, which is in the Natural History Museum in London with two male and seven female paratypes . One male and one female paratype are in the reference collection of the University of Chittagong. The species name honors the Bangladeshi zoologist Kazi Zaker Husain (1930-2011) from the University of Dhaka , for his efforts to protect biodiversity.
In 2014, the American entomologist George Japoshvili and his Japanese colleagues Yoshimitsu Higashiura and Satoshi Kamitani carried out a comprehensive study of the Japanese Encyrtidae. In this context , they synonymized the genus Aschitus Mercet , 1921, with Microterys Thomson , 1876.
Web links
Individual evidence
- ↑ a b c d e f Badrul Amin Bhuiya: Two new species of Encyrtidae (Hymenoptera: Chalcidoidea) from Bangladesh attacking Pulvinaria psidii Maskell (Homoptera: Coccidae) on guava . In: Oriental Insects 1998, Volume 32, No. 1, pp. 267-277, doi: 10.1080 / 00305316.1998.10433779 .
- ↑ George Japoshvili, Yoshimitsu Higashiura and Satoshi Kamitani: A review of Japanese Encyrtidae (Hymenoptera), with descriptions of new species, new records and comments on the types described by Japanese authors . In: Acta Entomologica Musei Nationalis Pragae 2016, Volume 56, No. 1, pp. 345-401, digitized .