Fidia chapini Strother, 2008

Strother, M. S. & Staines, C. L., 2008, A revision of the New World genus Fidia Baly 1863 (Coleoptera: Chrysomelidae: Eumolpinae: Adoxini), Zootaxa 1798 (1), pp. 1-100 : 26-27

Fidia chapini Strother , New Species

( Figs. 3 , 108 ; Map 9)

Holotype (♀) (TAMU): " MEXICO: Guerrero 3 km S Xalitla , 610m N 18°00'; W 98°24' vii-1-1992; C. Bellamy / HOLOTYPE Fidia chapini M.S.Strother 1993 [red]". The specimen is glued on a point and is in excellent condition with all appendages intact. The dissected abdominal sterna, terga and pygidium are glued on a rectangular card pinned beneath the specimen. The ovipositor, genital tract, and spermatheca are preserved in glycerin in a microvial pinned beneath the specimen.

Description (of holotype). TL = 6.85 mm, HW = 3.61 mm. Color: Head glossy black with faint bluegreen luster, gena dark red-brown; pronotum glossy black with faint blue-green luster; elytra very dark redbrown verging on blackish basally, with blue-green luster more pronounced basally and laterally; thoracic sterna dark red-brown to nearly black on metasternum; abdominal sterna black with blue- to brassy-green metallic luster, pygidium dark red-brown; femora and tibiae dark red-brown, tarsi light red-brown; pubescence white. Pronotum: Slightly wider than long, widest at middle, slightly narrower anteriorly than posteriorly, sides evenly, distinctly arcuate in dorsal view, dorsum distinctly convex in lateral view, with an overall globose appearance; densely, coarsely punctate-reticulate, punctures relatively large; interpunctal surface nitid; pubescence relatively sparse, erect on disc, suberect on lateral aspects, not obscuring surface sculpture. Mesepisternum: Entirely glabrous. Elytra: Intrahumeral callus obsolete; apex of humeral callus impunctate, glabrous; asetose punctate-striae entirely obsolete, surface densely, coarsely punctate-reticulate, some punctures on lateral aspect, posteriad humeral callus, contiguous, giving surface feebly reticulate-undose (with undulating, broadish, nearly parallel depressions running more or less into each other; wavy) to reticulate-rugose appearance; pubescence moderately dense, suberect, not obscuring surface sculpture. Abdomen: Medial area of first four sterna evenly convex, uniformly punctate-pubescent; last sternum declivitous in lateral view, apical margin subtruncate, lacking medial process; pygidium dorsally flat in apical ½ with subacutely rounded apex. Legs: Femora gradually tapered towards base; spinose apical border of metatibia obtusely rounded. Penis: Males unknown. Spermatheca: Basal swelling type: proximal part not noticeably swollen, upper and lower surfaces subparallel, not constricted immediately proximad distal part, base with narrow constriction separating globular basal swelling; distal part subangulately recurved, gently tapered to small, acute, upturned apical appendix; spermathecal duct and spermathecal gland emanating from apex of basal swelling.

Etymology. Named in honor of Joan B. Chapin for her indispensable guidance and assistance during this revision.

Diagnosis. Large (approximately 6.85 mm); form robust in dorsal view ( Fig. 3 ); pronotum noticeably wider than long; elytra coarsely punctate-reticulate; dorsum very dark red-brown to blackish with faint bluegreen luster; basal swelling type spermatheca ( Fig. 108 ). Fidia chapini is very distinctive and is not likely to be confused with any other species.

Distribution (Map 9). Known only from the holotype.

Natural History. Unknown.

Figures

FIGURES 1–4. Dorsal habitus of Fidia species. 1. F. albovittata. 2. F.cana. 3. F. chapini. 4. F. clematis.

FIGURES 103–108. Female spermatheca, lateral view (scale bar = 0.5 mm). 103. F. convexicollis. 104. F. papillata. 105. F. xanthonioides, Jalisco, Mexico. 106. F. xanthonioides, Oaxaca, Mexico. 107. F. guatemalensis. 108. F. chapini. FIGURES 109–110. Male sperm guide, dorsal and lateral views (scale bar = 0.25 mm). 109. F. viticida. 110. F. cana.