Ecnomina beela, 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 : 65

Ecnomina beela sp. nov.

Figs 150–152

Diagnosis. Ecnomina beela closely resembles other species in the group in possessing one pair of relatively robust dorsal processes on tergum X and meso-distally excised inferior appendages. It is distinguished by tergum X with a pair of simple, slender processes.

Description. Head, body and wings light brown; wings similar to E. merki ( Fig. 172 ). Forewing length about 2.7 times width: male 2.8 mm. Forewing fork 2 relatively long, sessile, length about 1.5 times length of fork 3; fork 3 relatively short, with long footstalk, length fork about twice length footstalk, footstalk length about 1.8 times length cross-vein m, r-m and m nearly contiguous at footstalk fork 3, r-m and m separated by about 0–0.4 times length of cross-vein m; fork 4 slightly shorter than fork 3; fork 5 long, length about twice length of fork 4. Hindwing length about 3 times width, fork 2 sessile, length about twice length of fork 3.

Male. Tergum X membranous, with one pair of relatively slender, simple dorsal processes, converging distally ( Fig. 152 ). Superior appendages in lateral view, robust, dilated near middle, length about 2.5 times width ( Fig. 150 ); in dorsal view, length about 5 times width, with several spines meso-distally ( Fig. 152 ). Phallus simple, tube-like, slightly upturned subapically ( Fig. 150 ). Inferior appendages short; in ventral view, fused in basal two thirds, dilated and truncated distally, with oval excision meso-distally, length about same as width ( Fig. 151 ); in lateral view, robust, slightly dilated and truncated distally, length about three times width ( Fig. 150 ).

Female. Unknown.

Holotype male: Queensland, Cockatoo Crossing , 17 km NW Heathlands, 11°39'S, 142°27'E, 1–21 Mar 1992, Malaise, P. Feeney ( ANIC).

Paratype: Queensland. 1 male (specimen CT-532 figured), collected with holotype ( ANIC) .

Etymology. Beela - Eastern Australian Aboriginal word for black cockatoo (Type locality- Cockatoo Ck).

Remarks. Only two specimens of Ecnomina beela have been collected from the type locality in northern Queensland (latitude 11°39'S).

Figures

FIGURES 144–152. Ecnomina spp. Male genitalia in lateral, ventral and dorsal views. 144–146: Ecnomina trifurcata Kimmins. 147–149: Ecnomina ramosa sp. nov. 150–152: Ecnomina beela sp. nov.

FIGURES 168–174. Ecnomina spp. 168–170: Ecnomina sheldoni sp. nov. male genitalia in lateral, ventral and dorsal views. 171–172: Ecnomina merki sp. nov. 171: Head and thorax, dorsal view. 172: Wings, section of forewing and hindwing. 173–174: Female genitalia in ventral view. 173: Ecnomina scutica sp. nov. 174: Ecnomina batyle Neboiss.