Xiphocentron (Sphagocentron) julus Schmid, 1982

Vilarino, Albane & Calor, Adolfo R., 2024, Comparative geometric morphometrics of male genitalia in Xiphocentron subgenera (Trichoptera: Xiphocentronidae): new species, revision and phylogenetic systematics of the subgenus Sphagocentron, Arthropod Systematics & amp; Phylogeny 82, pp. 407-431 : 407-431

publication ID

https://doi.org/ 10.3897/asp.82.e112587

publication LSID

lsid:zoobank.org:pub:CB81B265-46A0-4247-A2F2-C9AC2394BC4E

DOI

https://doi.org/10.5281/zenodo.11238207

persistent identifier

https://treatment.plazi.org/id/16AFB80D-0F33-5632-B412-BAA7F98D247D

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scientific name

Xiphocentron (Sphagocentron) julus Schmid, 1982
status

 

Xiphocentron (Sphagocentron) julus Schmid, 1982 View in CoL

Figures 10 A – C View Figure 10

Schmid 1982: 56 [Type locality: Holotype MEXICO • ♂; Veracruz, Puente Nacional, USNM]. — Armitage et al. 2018: 3 [distribution]. — Harris and Armitage 2019: 7 [distribution]. — Armitage et al. 2021: 8 [distribution]. — Bueno-Soria et al. 2022: 201 [checklist].

Material examined.

MEXICO • ♂; Veracruz, Puente Nacional , 15. vi. 1964, F. S. Blanton leg., USNM .

Diagnosis.

Xiphocentron julus is particularly similar to X. tampati sp. nov. by the posterior margin of sternum IX mostly straight with very small mesal lobes; and can be differentiated from this and other species mainly by the uniform width of the preanal appendage, the posterior margin of sternum IX mostly straight with very small mesal lobes, and the paraproct apex oblique.

Synopsis.

Male. Forewing length 4.0 mm. Color overall brown, forewing uniformly dark brown. Genitalia (Fig. 10 A – C View Figure 10 ). Tergum IX in lateral view, wide basally, narrower apically (Fig. 10 A View Figure 10 ); in dorsal view, posterior margin with two ogival shaped lobes and small lateral flanges (Fig. 10 B View Figure 10 ). Sternum IX, in ventral view, posterior margin abruptly truncated, straight at its ventro-apical margin, forming two low lobes, barely produced (Fig. 10 C View Figure 10 ). Paraproct, in lateral view, slender tapering to a pointed apex (Fig. 10 A View Figure 10 ); in dorsal view, apex round and forming two apical lobes (Fig. 10 B View Figure 10 ). Preanal appendage in lateral view, regularly narrow and pointed at apex (Fig. 10 A View Figure 10 ). Inferior appendage, in lateral view, about 2.5 × as long as tergum IX, coxopodite and harpago completely fused to each article, inner face with longitudinal area of dense, long spine-like setae, and row of regular setae from midlenght to apex (Fig. 10 A View Figure 10 ); basal region (coxopodite) wide, mesal sclerite region indistinct; apical region (harpago) narrow, digitate 2 × as long as basal region, curved dorsad (Fig. 10 A View Figure 10 ); in dorsal view, strongly curved mesad, apex twisted posterad (Fig. 10 B View Figure 10 ). Phallus tubular, very long and narrow, reaching segment V, basally conical, subapically annulate, weakly sclerotized, apex enlarged.

Distribution.

Mexico, Panama.

Remarks.

Type was fixed in a permanent slide and displayed in lateral view.

USNM

Smithsonian Institution, National Museum of Natural History