A new species of Contarinia Rondani (Diptera: Cecidomyiidae) that induces flower galls on canola (Brassicaceae) in the Canadian prairies

2019 ◽  
Vol 151 (02) ◽  
pp. 131-148
Author(s):  
Boyd A. Mori ◽  
Lars Andreassen ◽  
James D. Heal ◽  
Julian R. Dupuis ◽  
Juliana J. Soroka ◽  
...  

AbstractA new species, Contarinia brassicola Sinclair (Diptera: Cecidomyiidae), which induces flower galls on canola (Brassica napus Linnaeus and Brassica rapa Linnaeus (Brassicaceae)), is described from Saskatchewan and Alberta, Canada. Larvae develop in the flowers of canola, which causes swelling and prevents opening, pod formation, and seed set. Mature larvae exit the galls, fall to the soil, and form cocoons. Depending on conditions, larvae will either pupate and eclose in the same calendar year or enter facultative diapause and emerge the following year. At least two generations of C. brassicola occur each year. Adults emerge from overwintering cocoons in the spring and lay eggs on developing canola flower buds. The galls produced by C. brassicola were previously attributed to the swede midge, Contarinia nasturtii (Kieffer) in Saskatchewan; here, we compare and list several characters to differentiate the two species.

2020 ◽  
Vol 45 (3) ◽  
pp. 537-543
Author(s):  
Karinne Sampaio Valdemarin ◽  
Jair Eustáquio Quintino Faria ◽  
Fiorella Fernanda Mazine ◽  
Vinicius Castro Souza

Abstract—A new species of Eugenia from the Atlantic forest of Brazil is described and illustrated. Eugenia flavicarpa is restricted to the Floresta de Tabuleiro (lowland forests) of Espírito Santo state and is nested in Eugenia subg. Pseudeugenia. Considering all other species of the subgenus that occur in forest vegetation types of the Atlantic forest phytogeographic domain, Eugenia flavicarpa can be distinguished mainly by the combination of smooth leaves with indumentum on both surfaces, with two marginal veins, usually ramiflorous inflorescences, pedicels 4.5‐9.7 mm long, flower buds 3.5‐4 mm in diameter, and by the calyx lobes that are 2‐3 mm long with rounded to obtuse apices. Morphological analyses were performed to explore the significance of quantitative diagnostic features between the new species and the closely related species, Eugenia farneyi. Notes on the habitat, distribution, phenology, and conservation status of Eugenia flavicarpa are provided, as well as a key for all species of Eugenia subg. Pseudeugenia from forest vegetation of the Atlantic forest phytogeographic domain.


Phytotaxa ◽  
2016 ◽  
Vol 257 (2) ◽  
pp. 122
Author(s):  
Leidiana Lima Santos ◽  
Margareth Ferreira Sales ◽  
Marcos Sobral

Myrcia arenaria, a new species of Myrcia sensu lato, is described, illustrated and compared with related species. The species is recognized by a combination of characters, which include elliptic to oval foliar blades, flower buds tearing at anthesis into 3 irregular lobes or 5 regular lobes; lobes  obovate, apiculate, sericeous at the base and flowers without petals. This taxon seems to be restricted to the coastal areas of northeastern Brazil, growing in the restingas located in the states of Alagoas, Bahia, Pernambuco, and Sergipe. Additionally, we also proposed the synonymization of Marlierea leal-costae with Psidium amplexicaule. We also present a map showing the geographical distribution of the species.


2004 ◽  
Vol 39 (2) ◽  
pp. 275-280 ◽  
Author(s):  
Yang Zhong-qi ◽  
Sun Jiang-hua ◽  
James P. Pitts

A new species of Tanaostigmodes (Hymenoptera: Chalcidoidea, Tanaostigmatidae) is described from China—Tanaostigmodes puerariae sp. nov. This is the first record of this family in China. This new species has potential as a biological control agent for control of kudzu, Pueraria lobate, in the U. S., because its preference for making leaf galls on kudzu. It was determined that the wasp has two generations per year, with the second generation overwintering as mature larvae in the gall on leaves that have dropped to the ground. Normally, only one wasp was found per gall, and a single kudzu leaf could have as many as 20 to 50 galls on its surface.


2020 ◽  
Vol 23 (4) ◽  
pp. 930-934
Author(s):  
Ke-Long Jiao ◽  
Xiao-Yi Zhou ◽  
Hai-Li Qiao ◽  
Hao Wang ◽  
Jun Chen ◽  
...  

Phytotaxa ◽  
2019 ◽  
Vol 393 (2) ◽  
pp. 105 ◽  
Author(s):  
BIN YANG ◽  
HONG-BO DING ◽  
SHI-SHUN ZHOU ◽  
MYA BHONE MAW ◽  
KYAW WIN MAUNG ◽  
...  

A new species of Ericaceae, Agapetes reflexiloba, from Putao, Kachin State, Myanmar, is described and a colour plate is provided, affiliated to Agapetes sect. Agapetes ser. Graciles Airy-Shaw. The new species is morphologically similar to A. nutans, A. linearifolia and A. angustifolia of the Series Graciles in having linear to lanceolate narrow leaves and corymbose-racemose inflorescences and very short filaments. It is, however, readily distinguished from its three relatives by having a purplish red to dark red acuminate corolla apex in flower buds and conspicuously reflexed corolla lobes in anthesis, and corolla light brownish yellow to brownish yellow, and with 5 deep purple red zig-zag stripes. The rediscovery of Agapetes bhareliana and A. linearifolia is also reported from Kachin state, Northern Myanmar, after a gap of more than eight decades. Both are new records for Myanmar. Agapetes nana was also recollected 64 years after the collection made by F. Kingdon Ward between 1952 and 1953. Agapetes nana (Griff.) Hook. f. var. robusta Airy Shaw is newly proposed as a synonym of A. nana. A revised taxonomic description along with colour plate and distributional map are provided.


Hoehnea ◽  
2014 ◽  
Vol 41 (2) ◽  
pp. 315-319 ◽  
Author(s):  
Maria das Graças Lapa Wanderley ◽  
Gardene Maria de Sousa ◽  
Marccus Alves

Dyckia tubifilamentosa Wand. & G. Sousa is described and illustrated. It differs from the other species of the genus Dyckia by several distinctive characters, namely: the ovoid shape of the flower buds, the long and exserted staminal tube formed from completely connate white filaments, the anther initially connivent and then divergent, along with the fruit with partially persistent perianth. Dyckia tubifilamentosa is found in some areas of the semiarid region of Northeastern Brazil (Piauí State), growing in the Caatinga and transitional Caatinga-Cerrado biomes.


1963 ◽  
Vol 41 (6) ◽  
pp. 971-989 ◽  
Author(s):  
Eric L. Mills

Ampelisca vadorum is described from eastern North American coastal waters. It has been confused since 1903 with the European Ampelsca spinipes Boeck, but differs considerably in morphology and ecology. A. spinipes is redescribed and figured. A deep-water record of A. spinipes from Cabot Strait refers to A. spinimana Chevreux. "Intersexes" in A. vadorum are really subadult males. Two generations per year occur north of Cape Hatteras. A small undescribed sibling species occurs in the same areas. Ten other western Atlantic Ampelisca species are discussed briefly, and a key is given to all species of the area.


Phytotaxa ◽  
2015 ◽  
Vol 207 (3) ◽  
pp. 286 ◽  
Author(s):  
Rajib Gogoi ◽  
SOURAVJYOTI BORAH

Impatiens dalaiensis Gogoi & Borah is described and illustrated from Arunachal Pradesh, India. In contrast to the morphologically similar I. graciliflora (fruits also clavate) and I. radiata (fruits linear-cylindrical), the new species exhibits flower buds with a distinct awn or appendage, lower sepal mouths with an awn or appendage, and the distal lobe of the lateral united petals long-lorate or ribbon-shaped, twisted.


Phytotaxa ◽  
2016 ◽  
Vol 265 (1) ◽  
pp. 79 ◽  
Author(s):  
MARCO OCTÁVIO DE OLIVEIRA PELLEGRINI

A new species of Tradescantia sect. Austrotradescantia endemic to rocky cliffs in Southern Brazil, is here described as Tradescantia seubertiana. This new species is characterized as being completely glabrous, with a leaf base obtuse to cordate to slightly amplexicaulous, ellipsoid flower buds, by its light-pink to pink petals, and for growing in wet rocky cliffs. The new species is morphologically most similar to T. crassula due to its erect habit, conduplicate to canaliculate, succulent leaves, with inconspicuous secondary veins, non-saccate cincinni bracts, pistil longer than the stamens and hilum longer than ½ the length of the seed. I present a description, an illustration, a distribution map, habitat description, and a conservation assessment for the new species. I also present a comparison and identification key for the species related to T. seubertiana.


Rodriguésia ◽  
2008 ◽  
Vol 59 (2) ◽  
pp. 393-398 ◽  
Author(s):  
Gerardo A. Aymard C. ◽  
Lisa M. Campbell

ABSTRACT Caraipa andina from La Fundación, in the western Andes of Venezuela (Táchira State) is described, illustrated, and its morphological relationship with an allied species is discussed. This new species is morphologically related to C. heterocarpa Ducke, but it differs by the leaf blade shape, size, and dense abaxial papillae; fewerflowered inflorescence; and shorter pedicel, flower buds, petals, and filaments. Phytogeographical information about the La Fundación area is presented. This species represents the first report of this genus in the Venezuelan Andes.


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