Daternomina alicewellsae, Cartwright, 2008

Cartwright, David I., 2008, A review of the Australian species of Ecnomina Kimmins and Daternomina Neboiss (Trichoptera: Ecnomidae), Zootaxa 1774 (1), pp. 1-76 : 14-15

Daternomina alicewellsae sp. nov.

Figures 16–18

Diagnosis. Daternomina alicewellsae can be distinguished from all other Daternomina species by having fused inferior appendages with relatively straight sides and a wide V-shaped notch distally.

Description. Head, body and wings light brown; wings similar to D. irrorata ( Fig. 1 ). Forewing length about 3.3 times width: male 3.7 mm. Forewing fork 2 relatively long, sessile, about 1.8–1.9 times length of fork 3, nygma present; fork 3 relatively long, length about 1.6–2.1 times length footstalk, footstalk length about 2.0–2.2 times length cross-vein m; r-m and m displaced at fork 3 by about 1.9–2.0 times length crossvein m; fork 4 similar length to fork 3; fork 5 long, about 1.8 times length of fork 4. Hindwing length about 3 times width, fork 2 sessile, length about 1.9–2.1 times length of fork 3.

Male. Tergum X short, membranous ( Fig. 18 ). Superior appendages laterally compressed; in lateral view, sub-rectangular, length about 3 times width ( Fig. 16 ); in dorsal view, relatively slender, length about 4.5 times width, with a group of spines on inner surface ( Fig. 18 ). Phallus robust, generally tube-like, truncated apically, with a pair of long, slender spines embedded subapically and a pair of elongate processes dorsally; with a slender, curved process (phallic guide) arising from near the base of the inferior appendages ( Fig. 16 ). Inferior appendages strongly dorso-ventrally compressed; in ventral view, fused, robust, relatively straight sided, with a wide V-shaped notch distally ( Fig. 17 ); in lateral view, slender and straight ( Fig. 16 ).

Female. Unknown.

Holotype male: (specimen CT-235 figured), Queensland, Mulgrave R., W of Gordonvale (about 17°08'S, 145°45'E), 29 Apr 1979, A.W. ( NMV, T-19565).

Other material examined: Queensland. 2 males, Moses Ck, 4 km N by E Mt Finnigan , 15°47'S, 145°27'E, 14–16 Oct 1980, J.C. Cardale ( ANIC) .

Etymology. Named for Dr Alice Wells (collector).

Remarks. This species is known from only three male specimens recorded from two localities in northeastern Queensland (latitudinal range 15°47'- 17°08'S).

Figures

FIGURES 13–18. Daternomina spp. Male genitalia in lateral, ventral and dorsal views. 13–15: Daternomina genoaensis sp. nov. 16–18: Daternomina alicewellsae sp. nov.

FIGURES 1–6. 1–2. Daternomina irrorata (Kimmins). 1: Forewing and hindwing. 2: Head and thorax, dorsal view. 3– 6. Ecnomina spp. 3. Ecnomina legula Neboiss, forewing and hindwing. 4–5. Ecnomina scutica sp. nov. 4: Head and thorax, dorsal view. 5: Wings, section of forewing and hindwing. 6. Ecnomina spinosa Kimmins, head and thorax, dorsal view. n., nygma; o.w, occipital wart.