Etiella zinckenella (Treitschke, 1832)

Özyolci, Büşra & Çalişkan, Selma Seven, 2024, Morphological comparison of tympanal organs between Phycitinae and Pyralinae (Lepidoptera: Pyralidae), Zootaxa 5463 (1), pp. 127-136 : 131

Etiella zinckenella (Treitschke, 1832)

Image ( Fig. 2g ): The wingspan of the adults of this species whose larvae feed in the shells of legumes is 19mm. On the forewings, there is a longitudinal dark yellow stripe near the thorax and a thin white line along the periphery. The rear wings have a lighter grey color and have no spots.

Tympanal organ ( Figs. 3g , 4g ): Bulla tympani is closed and concave. The tympanum and conjunktivum are on the same plane. Tympanum is D-shaped and the fornix tympani is thin. There is a consecutive thorny rugae odontinae structure between the tympanum and fornix tympani. The pons tympani is shaped like two attached needles. The tergo-sternal sclerite is thin and long while the processus spiniforme is protruding. The zona glabra tympani is not prominent.

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.