Fibuloides trapezoidea is a moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 of the Tortricidae

Tortricidae

Tortricidae is a family of moths, commonly known as tortrix moths, in the order Lepidoptera. Tortricidae is a large family with over 9,400 species described, and is the sole member of the superfamily Tortricoidea. Many of these are economically important pests. Olethreutidae is a junior synonym...

 family. It is known from Guizhou

Guizhou

' is a province of the People's Republic of China located in the southwestern part of the country. Its provincial capital city is Guiyang.- History :...

 in China

China

Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

.

It is similar to Fibuloides cyanopsis in the shape of uncus and socius, but can be distinguished by the trapezioidal cucullus and the absence of the enlarged, flattened bristles on the neck of valva. In Fibuloides cyanopsis the cucullus is ovate and the neck of valva has two or more short enlarged, flattened bristles on its ventral side.

Description.

The forewing length is 6.5 mm. The head is vertex with gray scales and the antenna are light brown. The thorax and tegula are gray intermixed with light brown. The forewing is elongate triangular, with a dark gray ground color. The hindwing and cilia are gray. The legs are gray, tarsi with brown rings.

Etymology

The specific name is derived from Latin trapezoideus (meaning trapeziform), referring to the shape of the cucullus.