Ecnomina

Cartwright, David I., 2008, A review of the Australian species of Ecnomina Kimmins and Daternomina Neboiss (Trichoptera: Ecnomidae), Zootaxa 1774 (1), pp. 1-76 : 30-31

Ecnomina s. str. Kimmins

Ecnomina Kimmins in Mosely and Kimmins, 1953: 380.

— Neboiss 1977: 57. Ecnomina s. str. Neboiss 2003: 64.

Type species. Ecnomina spinosa Kimmins, 1953 by monotypy.

Diagnosis. A revised diagnosis of the genus Ecnomina was provided by Neboiss (2003: 64).

Key characters of the genus are females with a single process on sternite VIII; adults with posterolateral warts aligned transversely and forewing fork 2 usually without nygma. Larvae usually with pigmented sclerotisation on head and nota; meso-and metanotum completely sclerotised; head without needle-like ligula

Description (after Neboiss 2003). Medium to large sized adults. Head dorsally with posterolateral setal warts positioned transversely, scutellum heart shaped ( Figs 4, 6 , 171 ). Forewing length about 2.7–3.3 times width: male 3.0– 6.2 mm; female 3.0–7.0 mm. Wing venation: forewing R 1 forked, forks 2, 3, 4 and 5 present; fork 2 usually sessile, occasionally with short footstalk, usually without nygma, length fork about 1.0–1.6 times length fork 3; fork 3 long usually with short footstalk, fork ranges from 2.1–15 plus times length footstalk, length footstalk ranges from about 0–2.6 times cross-vein m; r-m and m not usually contiguous at fork 3, r-m and m displaced at fork 3 by between 0–3.2 times length cross-vein m; fork 4 shorter than fork 3; and fork 5 about as long as fork 3. Hindwing length between 2.6–3.6 times width, with forks 2, 3 and 5 present; fork 2 usually sessile; with three longer anal veins, these veins are usually fairly straight ( Figs 3, 5 , 172 ). Male genitalia variable in form, although some species fall into obvious groups. Female genitalia with single usually elongate, process on sternite VIII, segments IX and X elongate, relatively slender, segment IX usually with a few pairs of hairs, segment X short ( Figs 173–195 ).

Larva usually with coloured or patterned head and nota, head rounded laterally, without pointed ligula; meso-and metanotum fully sclerotised ( Cartwright 1997, fig. 1.4).

A total of 36 species are known from all states and mainland territories of Australia. Females have been associated for 23 species.

Figures

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.

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.