Lecithocera pakiaensis Park

Park, Kyu-Tek, 2009, Genus Lecithocera of Thailand. Part IV. Descriptions of three new species and notes on a little known species (Lepidoptera: Lecithoceridae), Zootaxa 2208, pp. 58-64 : 61-64

Lecithocera pakiaensis Park , sp. nov.

( Figs. 3, 3 a, 3b, 7, 11, 11a, 11b)

Holotype: 3, Thailand, Chiang Mai, Doi Pakia 1500m, 5–7 Aug 1987 (Moriuti, Saito, Arita, Yoshimoto), gen. prep. No. CIS-5831/Park. Paratypes: 4 3, same data as the holotype, wing prep. no. CIS-5843/Park; 2 3, same locality as the holotype, 24 May 1983 (Kuroko, Moriuti, Arita, Yoshiyasu); 1 3, same locality, 5 Sep 1985 (Moriuti, Saito, Arita).

Diagnosis. The male genitalia have an unique, short, bifurcate projection on the ventral margin of valva and a heavily sclerotized laterocaudal processes of the juxta reminiscent of those of Opacoptera Gozmány, 1978 (see Gozmány 1978) and distinct from all other species of Lecithocera . However, the wing venation agrees with that of Lecithocera , and the abdomen lacks spinous zones. Thus, the species is placed in Lecithocera .

Description. Male. Head: Grayish orange dorsally, with orange white erect scales laterally. Scape of antenna elongated, orange white dorsally, grayish orange ventrally; flagellum orange white throughout, with distinct brownish annulations. Labial palpus not strongly upturned; second segment thickened, with rough scales directed anteriorly, brownish orange on outer surface, shiny orange white on inner surface; 3rd segment FIGURES 9–12. Male genitalia and female genitalia. 9, Lecithocera anglijuxta Wu ; 9a, aedeagus, ventral view of gen. prep. no. CIS-5809/Park; 9b, lateral view of gen. prep. no. CIS-5823/Park; 9c, 7–8th abdominal segments; 10, L. montiatilis sp. nov.; 10a, aedeagus; 10b, 7–8th abdominal segments; 11, L. pakiaensis sp. nov.; 11a, aedeagus; 11b, 7–8th abdominal segments; 12, L. cornutima sp. nov.; 12a, aedeagus; 12b, 7–8th abdominal segments; 13, female genitalia of L. anglijuxta Wu ; 13a, magnification of ductus bursae. Scale bars: 1 mm.

slender, as long as 2nd. Thorax: Tegula and dorsum grayish orange. Hind tibia with orange-white, hairlike scales dorsally; tarsi pale orange. Wingspan 13.5–15.0 mm. Forewing ground color orange white, with brownish-orange scales scattered throughout, more dense beyond 2/3 length; discal spot absent; costa nearly straight beyond basal 1/4; apex somewhat acute; termen slightly oblique, not sinuate; fringe concolorous. Venation ( Fig. 7 ) with R2 arising just before end of cell; R3 stalked with R4+5 nearly to 1/2 length; R4 and R5 stalked for nearly 3/5 length; R5 to termen; M1 distant from R3+4+5 basally; M2 nearly parallel to M1; M3 arising approximate to CuA1+2; CuA1 and CuA2 stalked for basal 2/5; cell weakly closed. Hindwing pale gray; apex acute; termen strongly oblique, not sinuate; fringe concolorous. Venation with Rs and M1 nearly connate at upper corner of cell; M2 well developed; M3 and CuA1 stalked for basal ¼. Abdomen brownish orange to yellowish brown dorsally; no spinous zones on terga. Male genitalia (Figs 11, 11a, 11b) with lobes of uncus somewhat semiovate, distant from each other. Gnathos moderate, strongly bent preapically. Valva broad in basal 1/3, with unique projection directed distally on the ventral margin; distal part more or less spatulate with broadly rounded apex. Juxta with heavily sclerotized, horn-shaped laterocaudal processes, exceeding base of vinculum, and a minute thornlike spine on left side of caudal margin; sacculus relatively broad moderately sclerotized. Aedeagus very stout, slightly shorter than valva, three or four horn-shaped, heavily sclerotized, large cornuti beyond middle. Female. Unknown.

Distribution. Thailand (Chiang Mai).

Etymology. The species name is derived from the type locality.

Lecithocera cornutima Park , sp. nov. ( Figs 4, 4 a, 4b, 8, 12, 12a, 12b)

Holotype: 3, Thailand, Chiang Mai, Doi Pui, 1300 m, 1–4 Sep 1987 (Moriuti, Saito, Arita, Yoshimoto), gen. prep. no. CIS-5837/Park. Paratypes: 1 3, same locality as holotype, 26–27 Oct 1985 (Moriuti, Saito, Arita), wing prep. no. CIS-5844/Park. 1 3, Chiang Mai, Doi Chang Khian, 1250 m, 25 Oct 1985 (Moriuti, Saito, Arita). 1 3, Chiang Mai, Doi Inthanon, 8–12 Sep 1987 (Moriuti, Saito, Arita, Yoshimoto).

Diagnosis. The forewing pattern of L. cornutima is somewhat similar to that of members of Torodora Meyrick and Athymoris Meyrick , but the venation is similar to that of Lecithocera . Lecithocera cornutima can be distinguished from congeners by the well-developed, long lateral hairpencils on the 6th–7th abdominal segments and the unique structure of the male genitalia with well-developed laterocaudal processes of the juxta and a large horn-shaped cornutus.

Description. Head: Yellowish brown to dark brown dorsally. Scape of antenna elongated, dark brown dorsally, pale orange ventrally; flagellum pale orange throughout, with indistinct brownish annulations. Labial palpus extremely long, strongly upturned; second segment normally thickened, furrowed on ventral surface, yellowish brown on outer surface with orange-white apex and shiny pale brownish gray; 3rd segment very slender, as long as 2nd, yellowish brown dorsally and pale grayish orange ventrally. Hind tibia yellowish brown with rough scales. Thorax: Tegula and dorsum yellowish brown. Wingspan 12.5–14.0 mm. Forewing uniformly yellowish brown to dark brown; costa nearly straight, pale orange anteriorly; five distinct small, pale orange patches from 2/3 length to pre-apex on costa; apex acutely produced, nearly falcate; termen concave beyond apex, oblique; fringe pale grayish brown, with narrow paler basal and median band. Venation ( Fig. 8 ) with R1 arising just before 1/2 length of cell; R2 arising slightly beyond 1/2 distance between R1 and R3; R3 free from R4+5; R4 and R5 stalked for 3/5 length; R5 to termen; M1 distant from R4+5 at base; M1 and M2 nearly parallel; M3 closer to CuA1+2 than to M2; CuA1 and CuA2 stalked for more than 1/2 length, then approximate to margin; cell weakly closed. Hindwing orange white, covered with brownish scales along veins; costa slightly expanded anteriorly basad of middle, with Rs and M1 stalked beyond cell; M2 curved anteriorly from base; M3 and CuA1 stalked for 1/3 length; apex acute; termen strongly oblique, concave medially. Abdomen: Orange white, with bundles of long, lateral hair-pencils between 6th and 7th segment; no spinous zones on terga. Male genitalia (Figs 12, 12a, 12b) with lobes of uncus relatively small, narrowly produced laterocaudally. Gnathos proportionally very short, small. Valva broad basally, with crescent concavity ventrally; costa concave; cucullus elongate with round apex, with dense long setae on surface and short strong spinelike setae along ventral margin. Juxta with heavily sclerotized horn-shaped laterocaudal processes, not exceeded apex of vinculum. Aedeagus as long as valva, bifurcate apically, with a large, hornshaped cornutus. Female. Unknown.

Distribution. Thailand (Chiang Mai).

Etymology. The species name is derived from Latin cornut (= horned), with a Latin superlative ending imus(a).

Figures

FIGURES 1 – 4. Adults of Lecithocera species (a: dorsal view of head and thorax parts; b: lateral aspect of labial palpus). 1, Lecithocera anglijuxta Wu; 2, L. montiatilis sp. nov.; 3, L. pakiaensis sp. nov., 4, L. cornutima sp. nov.

FIGURES 5 – 8. Venation. 5, Lecithocera anglijuxta Wu; 6, L. montiatilis sp. nov.; 7, L. pakiaensis sp. nov.; 8, L. cornutima sp. nov.