Home > Pyraloidea > Crambidae > Spilomelinae Guenée, 1854 > CNAPHALOCROCIS Lederer

Cnaphalocrocis patnalis Bradley, [1981]; PED 15

  • Taxonomy

    The holotype of Marasmia patnalis Bradley, 1981: 323. Figs 1,3,4,7. is from Sri Lanka (Gannoruwa). Marasmia Lederer 1863c: 384 is currently considered a junior subjective syn. of Cnaphalocrocis Lederer 1863a: 277 but Munroe 1991 treated it as a good genus.

    Cnaphalocrocis has veins R2 & R1 stalked with R3 set close to the trunk of R3 & R4 whereas Marasmia has R2 & R1 free.

  • Description

    Wing length: 7mm. This group of spp. is fulvous and brown like the medinalis Guenée group but is easily distinguished by the FW post median line being retracted to the median position halfway across the wing. The broad dark FW & HW sumarginal bands are parallel to the wing margin. Note how the post median line is displaced proximally to the rear of the FW, unlike Cnaphalocrocis medinalis and C. trebiusalis Walker. The latter also appears to have an enlarged pale patch adjacent to the post median fascia of the FW. The spp. can be distinguished by genitalic features and the FW venation.

  • Distribution & Habitat

    Sri Lanka, Sabah, Brunei, W. Borneo (Kalimantan Berat?), Philippines. Lowland and hill disturbed forest, cultivated areas; <1100m.

  • Life History & Pest Status

    Cnaphalocrocis medinalis Guenée and C. patnalis Bradley are usually found in association on rice plants in South and Southeast Asia (Singh & Singh, 2014). Larvae of the two spp. are similar in morphology, as is their feeding behaviour (Gottfried et al. 1981). Spinning, the process of stitching leaf margins together to form a leaf roll before the initiation of feeding process, is an important behaviour of leaf-folder larvae. The spinning behaviour of the two spp. is similar (Abenes & Khan 1993).

  • Similar spp.

    Cnaphalocrocis medinalis
    C. patnalis

  • Unrelated Look-alikes

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  • References

    Munroe, E.G. (1991). Transfer of Aulacodes eupselias Meyrick to Pyraustinae, with notes on the genus Marasmia Lederer and on cataclystiform wing patterns in the family Crambidae (Lepidoptera: Pyraloidea). Bishop Museum Occasional Papers 31:


  • Genitalia

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  • DNA Barcode

    No content available.

  • 3D Imaging

    No content available.

  • Spare

    No content available.

(1) Taxonomy, (2) Description, (3) Distribution & Habitat, (4) Life History & Pest Status, (5) Similar spp., (6) Unrelated Look-alikes, (7) References, (8) Genitalia, (9) DNA Barcode, (10) 3D Imaging, (11) Spare