Casignetella goluensis ( Baldizzone, 1994 ), 2025

Budashkin, Yu. I., 2025, NEW AND LITTLE KNOWN SPECIES OF CASEBAERER MOTHS OF THE GENUS CASIGNETELLA STRAND, 1928 (LEPIDOPTERA: COLEOPHORIDAE) FROM THE BLACK AND AZOV SEA BASIN AND SOUTH-EASTERN KAZAKHSTAN, Far Eastern Entomologist 520, pp. 8-16 : 13-15

Casignetella goluensis ( Baldizzone, 1994) , comb. n.

Figs14–19

MATERIAL EXAMINED. Russia: Crimea, Karadag , 21. VI 1980, 1 ♀, coll. S. Reznik ( ZIN); Karadag , biostancia, on light, 25.V 1985, 11.VI 1986, 1.VIII 1988, 18.IX 1988, 22– 29.VIII 1989 , 5 ♂, 3 ♀, coll. Yu. Budashkin (gen. slides 42/ 20♂, 43/ 20♀, 45/ 20♂, O. Bidzilya) ( ZIN, ZMKU, KSS). Ukraine: Odessa Region, Ivanovskii District , 5 km NW Severinovka, on light, 08. VI 2015, 1 ♂, coll. O. Bidzilya (gen. slide 14/16 O. Bidzilya) ( ZMKU) .

DESCRIPTION. Imago. Wingspan 8.0–10.0 mm ( Figs 14, 15 ). Labial palpus moderately long, pale, segment 3 the same length and about same width with segment 2, straight, acute, brown, upper surface dirty-white; segment 2 straigt, gradually broadened distally, outer surface brown except for white narrow streak along lower margin, apex with short triangular brush of brown scales under base of segment 3, inner surface brown with white pattern along upper and lower margins. Scape light grey mixed light white, pecten a few short hair-like scales. Flagellum in male slightly thicker than this in female, dirty-white with distinct light brown ringlets. Head and tegulae grey to brown. Forewing dirty-white to light grey mottled with light brown along veins and in apical ¼ and randomly scattered black-tipped scales. Cilia grey with numerous dirty-white scattered scales. Hindwing and cilia grey. Spinous plates on abdominal tergites relatively narrow and short ( Figs 18, 19 ).

Male genitalia ( Fig. 16 ). Gnathos egg-shaped, of middle size. Tegumen moderately long and wide. Transtilla branches medially connected, in the form of more or less rhomboid broad blades. Valva relatively narrow, cucullus long and moderately wide, rounded apically. Sacculus relatively long, well sclerotized, in the form of a big ovate blade with stout curved pointed dorsocaudal process, with a large tooth on dorsal side, about half as long as sacculus. Juxta with two long and narrow dorsal processes and one wider ventral process. Phallotheca rods moderately short, narrow, with one triangular tooth approximately in the middle of length. Cornuti in the form of five fused rather long, slightly curved spines without basal plate.

Female genitalia ( Fig. 19 ). Ovipositor relatively short. Papillae analis of medium size, covered with rare short bristles, rounded apically, membranous. Both pairs of apophyses moderately thick, apophyses posteriors relatively long, almost four and half times as long as the ltngth of apophyses anteriores. Apophyses anteriores distinctly shorter than segment VIII and approximately as long as antrum. Sternum VIII about as longer as broad, its lateral parts straight, posterior lobes moderately long and narrow, covered with relatively rare and moderately long bristles. Ostium large, U-shaped with distinct anteromedial corners, opens in the center of sternum VIII. Antrum well sclerotized, strongly edged, wide, more or less goblet, slightly curved and weakly narrowed towards ductus bursa. Ductus bursa of moderate width, long, with a rather short spinous patch which reaches nearly to half length of ductus bursae. Bursa copulatrix comparatively small, membranous, rounded. Signa moderately large, basal plate narrow, elongated, with uneven anterior margin, terminal process rather long, acute, very narrow with weakly curved top.

DIAGNOSIS. Casignetella goluensis is similar to C. artemisicolella (Bruand, [1855]) , from which it well differs externally in smaller size. Unlike C. artemisicolella in the male genitalia of C. goluensis the gnathos is egg-shaped (parallel-sided in C. artemisicolella ), transtilla branches are much wider and rounded, cucullus is distinctly longer, sacculus is shorter, extends to ½ rather than to ¾ length of cucullus, whith distinct tooth on dorsal side and cucullus terminally claw-shaped, juxta bears two long and narrow dorsal and one wider ventral processes, cornuti is noticeably longer and without basal plate. The female genitalia of new species are characterized by papillae analis which are distinctly shorter than in C. artemisicolella , U-shaped with distinct anterolateral corners rather than rounded anteriorely ostium, and antrum weakly narrowed towards ductus bursae (distinctly inflated in C. artemisicolella ) and larger signa.

DISTRIBUTION. Turkey ( Baldizzone, 1994). Our records are a new for Europe ( Russia and Ukraine).

Figures

Figs 14–19. Casignetella goluensis. 14 – imago, male from Karadag; 15 – imago, male from Severinovka; 16 – male genitalia, Karadag (gen. slide 42/20, O. Bidzilya); 17 – female genitalia, Karadag (gen. slide 43/20, O. Bidzilya); 18 – abdominal tergites of male from Karadag (gen. slide 42/20, O. Bidzilya); 19 – same, female from Karadag (gen slide 43/20, O. Bidzilya). 14