Triaenodes hodgesi, Holzenthal & Contents, 2004

Holzenthal, Ralph W. & Contents, Trond Andersen Table Of, 2004, The caddisfly genus Triaenodes in the Neotropics (Trichoptera: Leptoceridae), Zootaxa 511 (1), pp. 1-80 : 24-25

Triaenodes hodgesi , new species

Fig. 15 , 34

The very shallowly excavate apex of tergum X, the digitate, but short dorsomesal process of tergum X, and the angularly broadened subbasal portion of the inferior appendage render the species distinct. However, in overall aspect it is quite similar to T. peruanus .

Adult (male: n=2, female: n=2). Forewing length 4.7–5.5 mm (male), 6.2–6.5 mm (female); hind wing length 3.9–4.8 mm (male), 5.1–5.4 mm (female). Eye 0.41–0.45 mm wide (male), 0.42–0.44 mm wide (female). Antennal scape 0.39–0.44 mm long (male), 0.47–0.49 mm long (female). Maxillary palp segment lengths (in mm): 0.25–0.28, 0.30– 0.33, 0.47–0.52, 0.23, 0.50 (male); 0.28–0.31, 0.38–0.40, 0.51–0.53, 0.29–0.32, 0.53–0.56 (female). Forewing pale yellow, denuded.

Male genitalia. Abdominal segment IX anterior margin slightly rounded; pleural region membranous, setose; tergum IX, in dorsal view, with posteromesal margin indistinct, dorsomesal papillae not evident; sternum IX in lateral view with posterior margin slightly sinuate. Preanal appendage setose, about as long as wide, constricted basally, apex subacute. Dorsomesal process of tergum X digitate, originating basally, short, less than half length of tergum X, with apical setae; tergum X, in dorsal view, with lateral margins subtriangular, apex slightly excavate medially; in lateral view, triangular, tapering to apex, apicolateral margins with microtrichia. Inferior appendage subquadrangular basally, setose, with short, tapering, apicoventral projection; recurved process abruptly downturned subapically, narrow, tapering throughout length, but constricted subapically, apex attenuate; apicomesal lobe heavily setose, elongate, narrow, angularly broadened subbasally. Phallobase small, triangular, endothecal membranes prominent, highly convoluted, with pair of parameres, parameres subequal, long, straight, tapering; phalicata troughlike, gently curved, narrow throughout length, apex mucronate, phallotremal sclerite not evident.

Female genitalia. Abdominal segment VIII with sternum setose posteriorly, pleural region highly membranous. Posterior margin tergum IX broadly triangular in dorsal view, with pair of small papillose lobes. Valves heavily setose, subquadrangular. Tergum X setose, triangular in lateral view, ventrolateral margin straight, apex acute; in dorsal view uniformly wide, apex truncate. Appendage of segment X setose, broad basally, elliptical. Structures of internal genitalia as in Figs. 34A, C ; vaginal chamber in ventral view circular.

Holotype male: ECUADOR: Pichincha: Sto. Domingo de los Colorados , 14 km E, 5.vii.1975, Langley & Cohen ( UMSP000083729 ) ( NMNH).

Paratypes: ECUADOR: Esmeraldas: Río Coyapas, Sapali Grande , 152 m, 20.iii.1958, R W Hodges — 1 male ( NMNH) ; Pichincha: Las Palmas , 5.ii.1958, R W Hodges — 2 females, 2 males ( NMNH) .

Distribution. Ecuador.

Etymology. We name this species in honor of Dr. Ronald W. Hodges, U.S. Department of Agriculture, who collected most of the known material.

Figures

FIGURE 15. Triaenodes hodgesi, new species. Male genitalia: A—lateral; B—dorsal; C—ventral; D—phallus, lateral.

FIGURE 34. Triaenodes hodgesi, new species. Female genitalia: A—lateral; B—dorsal; C—ventral.