Limits...
Two new species of Scymnini (Coleoptera: Coccinellidae) from Karnataka, India.

Poorani J - Biodivers Data J (2015)

Bottom Line: As a result, many economically important species remain poorly characterized, or worse, unnamed.These species are externally similar to other known species and often misidentified.Horniolussororius sp. n. and Scymnus (Pullus) rajeshwariae sp. n. (Coleoptera: Coccinellidae) are described here and illustrated with notes on their biology and related species.

View Article: PubMed Central - PubMed

Affiliation: ICAR-National Bureau of Agricultural Insect Resources, P.B. No. 2491, HA Farm Post, Bellary Road, Hebbal, Bangalore 560024, India.

ABSTRACT

Background: The Scymnini (Coleoptera: Coccinellidae) of the Indian region is rich and highly speciose, with nearly 90 described species and scores of undescribed species (Poorani 2002). There is a dire need to systematically revise the genera and species of this tribe from the Indian region. Due to paucity of representative collections covering the entire region and lack of access to types, it is difficult to identify most of the Scymnini of the Indian region to species. As a result, many economically important species remain poorly characterized, or worse, unnamed.

New information: Two economically important and unique species of Scymnini (Coccinellidae) belonging to Horniolus Weise (1900) and Scymnus (Pullus) Mulsant (1846) from the Southern Indian state of Karnataka that have remained unnamed for long are treated in this paper. These species are externally similar to other known species and often misidentified. Horniolussororius sp. n. and Scymnus (Pullus) rajeshwariae sp. n. (Coleoptera: Coccinellidae) are described here and illustrated with notes on their biology and related species.

No MeSH data available.


Larva feeding on Pseudoregmabambusicola ​on bamboo
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4493668&req=5

Figure 1517358: Larva feeding on Pseudoregmabambusicola ​on bamboo

Mentions: It appears to be a highly specific predator of the bamboo woolly aphid, Pseudoregmabambusicola (Takahashi) and is collected always in association with this species only. The larvae are greyish with white waxy dusting and lack the usual dense waxy filaments in many other Scymnus spp. (Fig. 1a, b, c​). The larvae are commonly seen in aphid colonies on bamboo stem, but the adults are more cryptic in their habits and found feeding only under the leaf sheaths. There are several common predators of P.bambusicola which occur along with this species. These include the giant bamboo ladybirds, Synonychagrandis (Thunberg) and Megalocariadilatata (F.) (Coccinellidae), Diphaaphidivora (Meyrick) (Lepidoptera: Pyralidae), and Dideopsisaegrota (F.) (Diptera: Syrphidae). In view of its specificity, this species could be a potential biological control agent of P.bambusicola on bamboo.


Two new species of Scymnini (Coleoptera: Coccinellidae) from Karnataka, India.

Poorani J - Biodivers Data J (2015)

Larva feeding on Pseudoregmabambusicola ​on bamboo
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4493668&req=5

Figure 1517358: Larva feeding on Pseudoregmabambusicola ​on bamboo
Mentions: It appears to be a highly specific predator of the bamboo woolly aphid, Pseudoregmabambusicola (Takahashi) and is collected always in association with this species only. The larvae are greyish with white waxy dusting and lack the usual dense waxy filaments in many other Scymnus spp. (Fig. 1a, b, c​). The larvae are commonly seen in aphid colonies on bamboo stem, but the adults are more cryptic in their habits and found feeding only under the leaf sheaths. There are several common predators of P.bambusicola which occur along with this species. These include the giant bamboo ladybirds, Synonychagrandis (Thunberg) and Megalocariadilatata (F.) (Coccinellidae), Diphaaphidivora (Meyrick) (Lepidoptera: Pyralidae), and Dideopsisaegrota (F.) (Diptera: Syrphidae). In view of its specificity, this species could be a potential biological control agent of P.bambusicola on bamboo.

Bottom Line: As a result, many economically important species remain poorly characterized, or worse, unnamed.These species are externally similar to other known species and often misidentified.Horniolussororius sp. n. and Scymnus (Pullus) rajeshwariae sp. n. (Coleoptera: Coccinellidae) are described here and illustrated with notes on their biology and related species.

View Article: PubMed Central - PubMed

Affiliation: ICAR-National Bureau of Agricultural Insect Resources, P.B. No. 2491, HA Farm Post, Bellary Road, Hebbal, Bangalore 560024, India.

ABSTRACT

Background: The Scymnini (Coleoptera: Coccinellidae) of the Indian region is rich and highly speciose, with nearly 90 described species and scores of undescribed species (Poorani 2002). There is a dire need to systematically revise the genera and species of this tribe from the Indian region. Due to paucity of representative collections covering the entire region and lack of access to types, it is difficult to identify most of the Scymnini of the Indian region to species. As a result, many economically important species remain poorly characterized, or worse, unnamed.

New information: Two economically important and unique species of Scymnini (Coccinellidae) belonging to Horniolus Weise (1900) and Scymnus (Pullus) Mulsant (1846) from the Southern Indian state of Karnataka that have remained unnamed for long are treated in this paper. These species are externally similar to other known species and often misidentified. Horniolussororius sp. n. and Scymnus (Pullus) rajeshwariae sp. n. (Coleoptera: Coccinellidae) are described here and illustrated with notes on their biology and related species.

No MeSH data available.