Microlepidoptera on Solanaceae

Lineodes triangulalis

Name

Lineodes triangulalis Möschler, 1890

Common name: none.

Original combination: Lineodes triangulalis Möschler, 1890

Synonyms:

  • Lineodes cyclophora Hampson, 1913
  • Lineodes triangularis (Walsingham, 1915) (misspelling)
  • Lineodes serpulalis Druce, 1895 (nec Lederer, 1863)

Alternative combinations: none.

Classification: Pyraloidea, Crambidae, Spilomelinae, Leucinodes group

Adult recognition

Forewing length: 7.7 - 9.7 mm, narrow. The wings are mostly dark brown with narrow white medial and antemedial areas. The dirty white medial streak crosses the wing from the costa, but it is not a longitudinal arc. The terminal area has yellow scales. In the male genitalia, the longitudinal fibula is only a ridge, bulbous near the base and apically narrow, and it crosses obliquely to the sacculus. The cornutus is flat and hook-shaped. The female genitalia are unlike other Lineodes species but like Atomopteryx in that they have a long antrum (with the apophyses not reaching the colliculum) and a very short ductus bursae with a swelling around the colliculum.

Immature stages

Described by Dyar (1901) as similar to L. integra, but with pinacula slightly more elevated and black-shaded, especially the subdorsal pinaculum.

Similar species

The other species of Lineodes in North America either have lighter markings or have the medial white area of the forewing arc-shaped or triangular, not narrow and transverse. The closely related Lineodes venezuelensis Amsel occurs in continental South America, and records of L. triangulalis may refer to this. Its wing pattern is nearly identical. The longitudinal valve ridge is slightly swollen at the apex, and the cornutus is absent. In females, the ductus bursae is not so swollen around the colliculum. This species is a significant pest of Capsicum annuum in Peru, where it attacks buds, fruit, and leaves.

Behavior

Reared by Dyar on the leaves of pepper plant. The leaf-feeding behavior is like that of L. integra (Dyar 1901).

Distribution

Caribbean and Central America, reaching into the extreme southern US, including Texas and Florida. Also in Puerto Rico, the Bahamas, Colombia, Cuba, Dominica, Guatemala, Honduras, Jamaica, Mexico, Trinidad, and Venezuela.

Hosts

Capsicum frutescens L. (pepper)

Comments

Lineodes triangulalis is found infrequently in the US. In Florida, the only specimen known since Dyar's raised lot was taken by T.S. Dickel on Big Pine Key in 1991. More specimens are known from southern Texas, especially Brownsville.

Literature

Dyar, 1901.

Wolcott, 1948.