Dioryctria pineae (Staudinger, 1859)

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

Dioryctria pineae (Staudinger, 1859)

Image ( Fig. 2d ): Species of this genus usually damage pine cones on conifer trees during the larval stage. The wingspan of adults is 34mm.Antennae of females are filiform and males are unipectinate. The base color of forewings is greyish and covered with rusty red scales. It bears two transverse white bands whose edges are surrounded by dark-colored scales in a zigzag pattern. The front edge of rear wings is covered with brownish and the overall color is light grey. The fringes are greyish and colorful.

Tympanal organ ( Figs. 3d , 4d ): Bulla tympani is closed and concave. The tympanum and conjunktivum are on the same plane. Tympanum has an oval shape and the spinula structure on top of it is prominent. There is a thorny rugae odontinae structure between the tympanum and fornix tympani. The paraspinal line separating the tympanum and conjunktivum is not prominent. The conjunktivum has an elliptical shape. The fornix tympani is wide. The pons tympani is shaped like two attached needles. The tergo-sternal sclerite is curved and the zona glabra tympani is wide. The processus spiniforme has a curvy structure. The intersegmental thoraco abdominal membrane is shaped like “V”. Venula is either not prominent or absent.

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.