Tripudia calusa Troubridge

Troubridge, J. T., 2020, A new genus and 37 new noctuoid species from peninsular Florida and the Keys (Lepidoptera: Noctuoidea), Insecta Mundi 2020 (789), pp. 1-56 : 30-31

publication ID 10.5281/zenodo.4585782

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scientific name

Tripudia calusa Troubridge

sp. nov.

Tripudia calusa Troubridge View in CoL , new species

( Fig. 20 View Figures 13–25 , 83 View Figures 79–84 , 133 View Figures 132–138 )


Diagnosis. Tripudia calusa is most closely related to T. dimidata (Smith) and T. luda (Druce) , although it does not look like either of these southwestern species. In the Florida Keys, T. calusa occurs with T. lamina Pogue , T. goyanensis (Hampson) , and T. balteata Smith , and can be distinguished from all of these species by the blackishbrown mesial band that extends from the posterior margin to the costal margin of the forewing; this band is absent in each of these other related species. In this regard, T. calusa more closely resembles Cobubatha metaspilaris Walker , with which it also occurs in the Florida Keys. Tripudia calusa is easily distinguished from C. metaspilaris by the basal and postmedial areas of the forewing, which are light beige in C. metaspilaris and dark brown with a more complicated pattern in T. calusa .

Description. Antennae filiform, ciliate; head, vertex, thorax, and abdomen brown. Dorsal forewing (both sexes). Forewing length 4.5–5.0 mm. Ground color blackish brown with scattered gray scales in basal area; obscure basal line with black and dark-brown scales; thin, brown antemedial line bordered basally and distally with broad gray lines; blackish-brown mesial band extends from posterior margin to costal margin; broad, gray, postmedial line is bordered basally and distally with thin black lines; submarginal line is composed of patches of black scales and gray scales toward tornus; cell M1 gray through submargin with a square patch of rust-colored scales adjacent to postmedial line, and a triangular patch of rust-colored scales adjacent to terminal line, a similar triangular spot is adjacent to terminal line in cell R4; terminal line black, edged basally with white scales; orbicular spot light gray, reniform spot dark gray. Dorsal hindwing. Ground color gray brown basally, becoming darker toward margin with darker gray-brown submarginal shade and diffuse discal spot; fringe gray. Male genitalia ( Fig. 83 View Figures 79–84 ). Valves symmetrical, gradually widening toward rounded apex, sacculus well developed with very fine, finger-like clasper bending backward, almost touching low, scobinate pollex; uncus with short, thick neck that widens at base of setose terminal section; terminal section gradually widens to a downturned point; a flat rod extends from base of uncus to give support or direction to aedeagus; juxta with long spine arising from right side. Female genitalia ( Fig. 133 View Figures 132–138 ). Ovipositor telescopic; ovipositor lobes long, pointed, setose toward apex; ostium bursae well sclerotized, with a minute sclerite situated mid-way between ostium bursae and ovipositor lobes; ductus bursae long, membranous, terminating at bulbous appendix bursae from which a diverticulum narrows to ductus seminalis; signa absent from corpus bursae, but anterior part scobinate.

Type material. Holotype male: USA: Florida, Monroe Co.: Bahia Honda State Park , 24.666°N, 81.253°W, 15.Apr.2015, J. Troubridge, in the CNC GoogleMaps . Paratypes: 18♂, 5♀: Monroe Co.: Bahia Honda State Park , 24.666°N, 81.253° W, 15.Apr.2015, 1♂ GoogleMaps ; Islamorada , 24.962°N, 80.566° W, 21.Jun.2014, 9♂, 3♀ GoogleMaps ; 24.963°N, 80.566° W, 2.Apr.2014, 6♂, 2♀ GoogleMaps ; Crawl Key , 24.747° N, 80.979°W, 19.Mar.2017, 1♂ GoogleMaps ; Upper Key Largo , 25.286°N, 80.292°W, 11.Mar.2015, 1♂, all J. Troubridge GoogleMaps .

Etymology. The holotype was collected at Calusa Beach, Bahia Honda State Park, hence the name. Noun in apposition.

Distribution. This species is known from the Florida Keys, it can be quite common in residential areas in Islamorada. Whether or not it occurs in the Antilles is unknown.

Noctuidae : Oncocnemidinae


Canadian National Collection of Insects, Arachnids, and Nematodes













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