Stamnodes matrona, Matson, 2023

Matson, Tanner A., 2023, A review of Mexican Stamnodes (Lepidoptera: Geometridae) with the description of 16 new species, European Journal of Taxonomy 911, pp. 1-79 : 17-19

publication ID	https://doi.org/ 10.5852/ejt.2023.911.2371
publication LSID	lsid:zoobank.org:pub:DB29E6F1-7925-46DB-8C9E-055C639203CE
DOI	https://doi.org/10.5281/zenodo.10384214
persistent identifier	https://treatment.plazi.org/id/03CEA053-3457-7853-FDC7-B247AE29FC27
treatment provided by	Plazi
scientific name	Stamnodes matrona
status	sp. nov.

Treatment

Stamnodes matrona sp. nov.

urn:lsid:zoobank.org:act:3C7D2A28-E94B-4E2B-9914-3CFDB1570B2B

Figs 9 View Figs 1–10 , 48 View Figs 47–48 , 66 View Figs 64–66 , 79 View Figs 74–81 , 95 View Fig

Diagnosis

Stamnodes matrona sp. nov. is not easily confused with other Stamnodes , but as this species is likely sympatric with S. favilla sp. nov., a brief diagnosis with respect to the latter is warranted. While S. favilla has a dark red outlining of the white patterning of the forewing underside apex and hindwing underside, such is absent in S. matrona . Furthermore, the male phallus altogether lacks cornuti, which should separate this species from S. favilla and all other similar species.

Etymology

The specific name matrona , a noun in the nominative case, is derived from the Latin ‘ matrona ’, meaning ‘lady, married woman, wife’.

Material examined

Holotype

MEXICO • ♂; Nuevo León, 4 mi. W of Iturbide ; [24.73° N, 99.97° W]; elev. 5500 ft; 22 Sep. 1975; J. Powell, J. Chemsak and T. Friedlander leg.; at light; EMEC1748430 View Materials .

GoogleMaps

Paratypes (6 ♂♂, 1 ♀)

MEXICO – Nuevo León • 3 ♂♂; same collection data as for holotype; EMEC1748430 View Materials to EMEC1748432 View Materials GoogleMaps • 1 ♂; 4 mi W Iturbide ; [24.74° N, 99.97° W]; elev. 5500 ft; 13–14 Sep. 1976; J. Powell and J. Chemsak leg.; black light; EMEC1748433 View Materials GoogleMaps • 1 ♂; same collection data as for preceding; 22 Sep. 1975; J. Powell, J. Chemsak, T. Friedlander leg.; at light; AMNH _ IZC 00353019 View Materials GoogleMaps • 1 ♂; same collection data as for preceding; 22 Sep. 1975; J. Powell, J. Chemsak, T. Friedlander leg.; at light; AMNH _ IZC 00353019 View Materials GoogleMaps • 1 ♀; same collection data as for preceding; 22 Sep. 1975; J. Powell, J. Chemsak, T. Friedlander leg.; at light; genitalia: TAM-2023-284 ( USNM 154214 View Materials ); USNMENT01771226 GoogleMaps • 1 ♂; highway 60, 4 mi. E of Galeana Jct. ; [24.83° N, 100.15° W]; elev. 6000 ft; 23 Sep. 1975; J. Powell, T. Friedlander leg.; at light; genitalia: TAM-2023-280 ( USNM 154215 View Materials ); USNMENT01771225 GoogleMaps .

GoogleMaps

Description

Male

FOREWING LENGTH. 15–16 mm (n = 7).

HEAD. Antenna filiform, fuscous. Vertex mostly pink. Frons mostly black, but white and pink dorsally, and thinly white along lateral and ventral margins. Labial palpus short, slightly porrect, subequal to diameter of eye, mostly fuscous. Cephalic collar pink and white.

THORAX. Patagium pink and white; tegula fuscous. Mesothorax fuscous above, whitish below. Legs mostly fuscous, though coxa and proximal half of femur given more toward white; tibial spur formula 0–2–4; epiphysis well developed.

FOREWING. Ground colour yellow-orange. Costa faintly grey; apical area black with yellow-orange and white patch below costa. Underside like upperside but apical patch white, costa darker grey, and costal area with scarlet suffusion. Fringe starkly checkered along outer margin and given toward pink along inner margin.

HINDWING. Concolourous with forewing above. Underside much different than upperside, predominantly dark grey, blotted with large irregular white patches. White patches as follows: irregular patches at base; subovate patches at costal median and apex; large, angled patch extending from median of outer margin to median of inner margin; and small irregular patch about the tornus (see Fig. 9b View Figs 1–10 ). Patches not finely outlined as in other Stamnodes . Fringe pink.

ABDOMEN. Fuscous above, white below.

GENITALIA ( Fig. 48 View Figs 47–48 ). Uncus long, slender, and tapering. Subscaphium well developed. Juxta wide and U-shaped with posterolateral, long, conical processes. Inner face of valva with two hair tufts: smaller tuft arising basally from digitate tubercle; second, larger hair tuft more laterally widened, positioned in slight depression, and extending to subapical area of valva. Costal sclerite with medial swelling and terminating just short of apex. Vesica without cornuti.

Female

Outwardly undifferentiated from male.

FOREWING LENGTH. 17 mm (n = 1).

GENITALIA ( Fig. 66 View Figs 64–66 ). Anterior apophysis two-thirds length of posterior apophysis. Ductus bursae with prominent sclerite flattened on ventral surface and dorsolaterally rolled toward median. Corpus bursae ovoid with inwardly, depressed circular signum bearing numerous minute papillae.

Distribution ( Fig. 79 View Figs 74–81 )

Mexico: Stamnodes matrona sp. nov. is known from the Sierra Madre Oriental pine-oak forests of Nuevo León.

Biology

Stamnodes matrona sp. nov. flies in September. The immature stages remain unknown but are likely hosted by mints ( Lamiaceae ).

Molecular characterization

This species has not been sequenced.