Ectoedemia albida

Diagnostic description: 

Diagnosis. Ectoedemia albida is similar to E. turbidella and similigena and cannot be distinguished by external characters. The male genitalia have no demarcated valval tip, and the gnathos is narrow as in similigena. The female genitalia have the posterior apophyses not reaching beyond the anterior ones (similar to similigena) and the signa are intermediate between turbidella and similigena. A remarkable character is the hyaline bar in the vestibulum.

Morphology: 

Male forewing length 2.6 mm, antenna broken. Female wingspan ca 7.4 mm, forewing length 2.9–3.4 mm (n=2), antenna broken. Colour pattern as in E. turbidella, overall paler.
Male genitalia. Capsule length 335 μm. Tegumen produced into widely rounded pseuduncus. Gnathos with central element narrowly triangular, smooth. Valva length 215 μm, in ventral view basally widest, gradually narrowing towards slightly inwards curved tip, tip not demarcated, almost triangular. Aedeagus 375 μm long, very long (1.12 × capsule length) and stout, with two pairs of prominent carinae; ventral pair at extreme posterior tip, pointed; dorsolateral pair more anteriorly placed, longer than ventral ones, strongly curved in lateral view, dorsally connected.
Female genitalia. T7 without row of setae, T8 relatively narrow, tapering posteriorly, with two groups of ca 20 setae. Anal papillae narrow, with 20 setae in total. Anterior apophyses widened in middle. Posterior apophyses widening anteriorly, just reaching to anterior ones. Vestibulum with vaginal sclerite, a dorsal spiculate pouch with many (ca 60) single, equally spaced, spines; a patch of densely packed pectinations near entrance of ductus spermathecae and a conspicuous hyaline bar. Corpus bursae small. ca 550 μm long, covered with small pectinations, except in anterior part; signa slightly dissimilar, shortest 225–280 and longest 240–335 μm long, relatively wide (6–7 cells), ca 2.7–3.4 × as long as wide. Ductus spermathecae with 2.5 convolutions.

Associations: 

Hostplant unknown, a Populus is likely.

Distribution: 

South Turkmenistan and N. Iran.

Life cycle: 

Adults found in April and May.

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith