Skip to content
<em>Dacus longicornis</em>

Dacus longicornis

Previous scientific names: Bactrocera vespoides Doleschall , Callantra smieroides Walker , Callantra unifasciatus Hardy , Callantra variegata Wang , Mellesis bioculata Bezzi, Mellesis destillatoria Bezzi, Mellesis eumenoides Bezzi, Callantra smicroides Bezzi , Callantra longicornis Hardy


Morphological – adult

Features include:

  • a large species
  • face fulvous with a pair of small irregularly oval black spots
  • postpronotal lobes yellow except posterodorsal corners fuscous
  • notopleura yellow
  • scutum dark red-brown without distinct dark patterns; lateral and medial postsutural yellow vittae absent
  • a narrow yellow triangle running along anterior margin of notopleural suture with base on notopleuron
  • mesopleural stripe narrow equal in width to notopleuron dorsally
  • scutellum yellow except for broad red-brown basal band
  • setae: sc. 2; prsc. absent; ia. 1; 1; 1; mpl. 1; npl. 2; scp. 4
  • legs with fore femora dark red-brown to fuscous, mid femora dark red-brown to fuscous except fulvous on basal 1/4, hind femora dark fuscous
  • fore and mid tibiae dark red-brown to fuscous, hind tibiae dark fuscous
  • fore tasi with all segments dark red-brown, mid and hind tarsi with basal segment fulvous and apical four segments red-brown
  • wing with cells bc and c fuscous, dense microtrichia over all of cell c and most of cell bc
  • a broad dark fuscous costal band overlapping R4+5 for its entire length and sometimes becoming darker at apex
  • anal streak indistinct but a broad pale fuscous area generally over cell cup and across wing margin towards cell dm
  • supernumerary lobe weak
  • abdomen strongly petiolate, abdominal terga III-V generally dark fuscous to black with a paler band often across posterior margin of tergum III, large orange-brown spots posterocentrally on terga IV and V with the spot on tergum V often expanded anteriorly into a medial longitudinal orange-brown band.

Morphological – larvae

No information available.


DNA barcoding

Diagnostic BOLD reference data available.


BsrI: Data not available

HinfI: Data not available

HhaI: Data not available

Sau3AI: Data not available

SnaBI: Data not available

SspI: Data not available

Vspl: Data not available


Data not available.

Host Range

Oligophagous. Recorded on 4 hosts in Cucurbitaceae, including the Asian vegetables Luffa acutangula, Luffa aegyptica and Trichosanthes cucumerina.


Widespread from Southern Asia to South-East Asia.

Indonesia, Malaysia, Brunei, Laos, Myanmar, Thailand, China, Philippines, India, Bhutan, Vietnam (Drew and Romig 2013), Bangladesh (Leblanc 2014)

Similar species

Similar to the Australian D. axanus, but differs in having no discernible anal streak, smaller facial spots and having the mid femora pale basally.

Similar to the exotic D. solomonensis but differs in not having a protrusion on tergum V and having a less elongate abdomen, and narrower triangles anterior to the mesonotal suture.

Pest Status

  • Exotic
  • A minor pest of native cucurbits, mainly Luffa species, in village situations


Cue lure