dcsimg

Comprehensive Description

provided by Smithsonian Contributions to Zoology
Costatrichia panamensis Flint

Costatrichia panamensis Flint, 1967, p. 11.

The species is probably most closely related to C. bipartita, new species, from which it differs in lacking the ornamentation of the eighth sternum, in the shape of the claspers and lateral penis sheath, and in the structure of the aedeagus.

ADULT.—Length of forewing, 2–2.5 mm. Color primarily fuscus, marked with bright green on mesonotum; forewing mostly green with conspicuous transverse fuscus bands just beyond midlength and at apex. Basal antennal segments compressed and very broad; densely covered with black setae. Forewing with an elongate, reflexed costal cell. Male genitalia: Seventh sternum with a long, pointed, apicomesal process. Eighth sternum slightly produced posteromesally, with a small apicomesal excision. Ninth segment produced anterolaterally as a narrow, rounded lobe; with a semi-erect, setose posterolateral process. Tenth tergite broadly united to ninth segment laterally, posterior margin shallowly concave. Lateral penis sheath broad and rounded apically in lateral aspect, apicoventral surface with a broadly V-shaped excision, with a narrow V-shaped strap dorsally. Clasper divided into an elongate, broad ventral arm, and a long pointed dorsal arm. Aedeagus with typical basal tubular portion and midlength complex with basal loop; apex with a dorsomesal sclerite terminating in a ventral point, a membranous ventromesal process terminating in a spine, and a pair of basolateral plates.

MATERIAL.—PANAMA: CANAL ZONE: Rio Agua Salud, Pipeline Road, 30 Mar. 1965, S. S. and W. D. Duckworth, 1 holotype; same, but 8–12 July 1967, Flint and Ortiz, 1 2 ; same, but July 1967, W. W. Wirth, 2 2 .
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bibliographic citation
Flint, Oliver S., Jr. 1970. "Studies of Neotropical Caddisflies X: Leucotrichia and Related Genera from North and Central America (Trichoptera: Hydroptilidae)." Smithsonian Contributions to Zoology. 1-64. https://doi.org/10.5479/si.00810282.60