Caloca lata, Shackleton, 2013

Shackleton, Michael E., 2013, New species of Caloca Mosely (Trichoptera: Calocidae) from eastern Australia, Memoirs of Museum Victoria 70, pp. 1-10 : 5

Caloca lata sp. nov.

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Holotype male. Vic.: Ovens R at Porepunkah, 26 Jan 1960, A. Neboiss. T-21496.

Paratypes. Collected with holotype: T-21497, 1 male. T-21498, 1 male.

Other material examined. Vic.: Ovens R at Porepunkah, 26 Jan 1960, A. Neboiss. TRI-26413, 1 male. TRI-26415, 1 male. TRI-26414, 2 males. TRI-6470, 1 male (illustrated). Vic.: Buffalo R, Abbeyards, 27 Jan 1960, A. Neboiss. TRI-26412 , 2 males. Vic.: Lake Mountain, 17 Jan 1961, A. Neboiss. TRI-26411 , 1 male. TRI-26416, 3 males .

Figures 13–17

Diagnosis. This species can be separated from other species of Caloca by the presence of a large medial spine on the inferior appendage.

Description. Adult male. Length of anterior wing: 5.3–6.2 mm (n = 14). Head: postocular setal warts long, narrow; row of setae above eye; strong, pale and darker setae posterior to eye; a pair of large warts on frons anterior and medial to antennae. Maxillary palpi, setose, setae on dorsum relatively long. Antennae: shorter than anterior wing length; antennal scape relatively long, with slender projection arising anteriorly at about mid length, extending almost to anterior margin of scape. Forewing (fig. 16): discoidal and thyridial cells present; cross-vein between Sc and R 1; vein A 1 joins Cu 2 at arculus. Hindwing (fig. 17): vein R 1 parallel to Sc until just beyond midpoint of wing where they fuse for a short distance before separating to approach the wing margin; forks 1 and 2 sessile; fork 5 present; veins Cu 2 and MP absent; basal half of vein MA weak, giving the appearance of a large vein-free area in mid basal half of wing. Genitalia (figs 13–15): segment X broad, lateral margins slightly divergent until apical third where they converge at approximately a 45° angle, apical third incised medially, pair of lobes basally on lateral margin, dorsal sublateral margins with a row of about seven spines projecting distally, extending from lobe to apical quarter, and one spine situated more medially at about the midpoint of segment, directed posteriorly; preanal appendages slender, extending almost length of segment X, basal third weakly curved outwards; inferior appendages with two broad, spine-like projections, lateral projection weakly curved inward, abruptly tapering to a point, darkly sclerotised apically, and medial projection shorter, blade-like, angled medially (one specimen possesses a third projection between these two that is about half the length of the medial projection).

Female and immature stages unknown.

Etymology. From the Latin lata meaning ‘wide’ and pertaining to the broad segment X.

Figures

Figures 13–27. Caloca lata, male (13–17): genitalia, dorsal (13), ventral (14), lateral (15); forewing (16); hindwing (17). C. sica, male (18–22): genitalia, dorsal (18), ventral (19), lateral (20); forewing (21); hindwing (22). C. gippslanda, male (23–27): genitalia, dorsal (23), ventral (24), lateral (25); forewing (26); hindwing (27).