Ematheudes punctellus (Treitschke, 1833)

Özyolci, Büşra & Çalişkan, Selma Seven, 2024, Morphological comparison of tympanal organs between Phycitinae and Pyralinae (Lepidoptera: Pyralidae), Zootaxa 5463 (1), pp. 127-136 : 132

Ematheudes punctellus (Treitschke, 1833)

Image ( Fig. 2j ): The wingspan of the adults of this species is 23mm. The forewings are covered with scales ranging from straw yellow to light brown and bear rowed or scattered spots on them. The rear wings are light grey in color.

Tympanal organ ( Figs. 3j , 4j ): Bulla tympani is closed and concave. Tympanum and conjunktivum are on the same plane. Tympanum has an oval shape and the spinula structure on top of it is prominent. The conjunktivum is in a long U shape. The rugae odontinae structure is prominent. The fornix tympani is slightly thick. The tergo-sternal sclerite is long and curved, and the processus spiniforme is shaped like a thorn. The zona glabra tympani is wide. The venula secunda extends up to the half of the second sternite.

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.