Endotricha flammealis (Denis & Schiffermüller, 1775)

Özyolci, Büşra & Çalişkan, Selma Seven, 2024, Morphological comparison of tympanal organs between Phycitinae and Pyralinae (Lepidoptera: Pyralidae), Zootaxa 5463 (1), pp. 127-136 : 130

Endotricha flammealis ([Denis & Schiffermüller], 1775)

Image ( Fig. 2c ): The wingspan of the adults is 20mm. The antennae are filiform. The base color ranges from pale dark yellow to orange-yellow, orange-red, and dark brown. There are a cream-colored band, a white line, and black spots on the forewings. The fringes of the forewings are whitish. The base color of the rear wing is orange, and there is a cream-colored band on it.

Tympanal organ ( Figs. 3c , 4c ): Bulla tympani is round, closed, and the inner edge is concave on the front. The praecinctorium is undeveloped. The tympanum and conjunktivum are on the same plane. Tympanum is D-shaped and conjunktivum is “U”-shaped. The pons tympani is thin and in the shape of a needle. The fornix tympani is thick and elongated in the shape of a triangle downwards. The processus spiniforme is short and in the shape of a thin thorn. The intersegmental thoraco abdominal membrane is in the shape of an indistinct “V”. The tergo-sternal sclerite is long and thin.

Figures

FIGURE 2. Top views of pyralid images. a. Pyralis farinalis b. Hypsopygia glaucinalis c. Endotrichia flammealis d. Dioryctria pineae e. D. mendacella f. Oncocera semirubella g. Etiella zinckenella h. Acrobasis obliqua i. Myelois circumvoluta j. Ematheudes punctellus.

FIGURE 3. Ventral view of the tympanal organs of moths before preparation (con: conjunctivum, ft: fornix tympany, prs: processus spiniforme, rgo: rugae odontinae, spn: spinula, tym: tympanum, tymc.: tympanalcilia, zgt: zona glabra tympani) a. Pyralis farinalis b. Hypsopygia glaucinalis c. Endotricha flammealis d. Dioryctria pineae e. Dioryctria mendacella f. Oncocera semirubella g. Etiella zinckenella h. Acrobasis obliqua i. Myelois circumvoluta j. Ematheudes punctellus.

FIGURE 4. Tympanal organs ultrastrukture of the moths after preparation (Blue circle: Intersegmental thoraco abdominal membrane; black circle: pons tympani; black triangle: processus spiniforme; red line: fornix tympani width) a. Pyralis farinalis b. Hypsopygia glaucinalis c. Endotricha flammealis d. Dioryctria pineae e. Dioryctria mendacella f. Oncocera semirubella g. Etiella zinckenella h. Acrobasis obliqua i. Myelois circumvoluta j. Ematheudes punctellus.