Fidia convexicollis 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 : 33-35

publication ID	https://doi.org/ 10.11646/zootaxa.1798.1.1
persistent identifier	https://treatment.plazi.org/id/039887A6-FF8A-7447-A1C3-7C7E0B3ED851
treatment provided by	Felipe
scientific name	Fidia convexicollis Strother
status	sp. nov.

Treatment

Fidia convexicollis Strother , New Species

( Figs. 7 View FIGURES 5–8 , 26, 29 View FIGURES 25–30 , 31 View FIGURES 31–34 , 45 View FIGURES 42–47 , 92 View FIGURES 90–92 , 103 View FIGURES 103–108 ; Map 3)

Fidia longipes: Schultz 1970: 245 (dissertation), ex parte.

Holotype ♂ ( EGRC deposited in MCZC): " TEXAS: Anderson Co. Engeling Wdlf. Manag. Ar., V-30-1992 Coll. E. G. Riley / collected on Vitis rotundifolia Michx. var. rotundifolia det. M.O. Moore 1992 / HOLO- TYPE Fidia convexicollis M.S.Strother 1993 [red]". The specimen is glued on a point and is in excellent condition, with all appendages intact. The genitalia were not dissected . Paratypes: One-hundred and nine specimens bearing the same labels as the holotype and seven specimens bearing the same locality label but with the second label, "collected on Parthenocissus ". Each paratype also bears the label, " PARATYPE Fidia convexicollis M.S.Strother 1993 [yellow]". The deposition of the paratypes is as follows: AMNH:15, EGRC:41, MCZC:15, LSUC:15, TAMU:15, USNM:15 .

Description. Males: TL = 4.24–5.28 mm, HW = 1.92–2.36 mm. Females: TL = 4.32–5.84 mm, HW = 2.04–2.76 mm. Color: Entirely black, occasionally very dark red-brown; pubescence silvery-white to strawyellow. Pronotum: Length subequal to width, widest at or immediately posteriad middle, sides moderately to distinctly arcuate in dorsal view, dorsum strongly arched in lateral view, dorsum less strongly arched in several specimens; densely, finely punctate-reticulate; uniformly densely pubescent, setae recumbent to adpressed. Mesepisternum: Densely pubescent. Elytra: Intrahumeral callus obsolete or obsolescent; asetose punctate-striae present, not deeply impressed, usually obscured by pubescence; interstices flat, densely, minutely punctulate-rugulose; pubescence dense, appearing uniformly distributed, setae recumbent to subadpressed. Abdomen: Males with medial area of all sterna moderately to feebly flattened, first and usually second sterna with impunctate, glabrous area; pygidium dorsally convex in apical ½ with broadly rounded apex. Females with medial area of all sterna gently convex, uniformly punctate-pubescent; apical margin of last sternum bearing weakly to well-developed, rounded medial process; pygidium dorsally flat to feebly impressed in apical ½, apical margin slightly reflexed, apex more acutely rounded than in males. Legs: Both sexes with femora gradually tapered towards base and protibiae slightly to feebly curved ventrally. Males with pro- and mesotibial spurs stout, minutely rugulose, protibial spurs separated by slightly more than width of one spur, mesotibial spurs contiguous; disco-setae on pro- and mesobasitarsi only. Penis: In posterior view, sides feebly concave to subparallel, widest at base of apical lobes; apical emargination basally subtruncate to feebly concave, rarely with feebly developed medial tooth; apical lobes acutely rounded to subtruncate at apex. In lateral view, eudorsal surface of declivitous part moderately to strongly convex, especially in apical 1/3; euventral surface concave; apex tapered to slightly euventrally directed point; midline of euventral surface slightly elevated above level of apical lobes, giving euventral apical outline a slightly humped appearance immediately proximad the apex. Sperm guide composed of lower sclerite only. Spermatheca: Basal arm type.

Etymology. From Latin convexus, meaning arched outward, and the adjectival collis derived from the noun collum, meaning neck; denoting the strongly arched pronotal dorsum.

Diagnosis. Medium-sized (4.24–5.84 mm.); entirely very dark red-brown to black; pronotum finely punctate-reticulate, with dorsum strongly arched in lateral view ( Fig. 31 View FIGURES 31–34 ); mesepisternum densely pubescent. Male with apical emargination of penis basally subtruncate to feebly concave, rarely with feebly developed medial tooth ( Fig. 92 View FIGURES 90–92 ).

Most specimens of F. convexicollis differ from other species by having the pronotal dorsum strongly arched; however, some specimens have the pronotum less strongly arched and may be confused with F. rileyorum . Fidia convexicollis is distinguished from the latter by the entirely dark femora and the finely punctate, densely pubescent pronotum.

Distribution (Map 3). Most specimens were collected in the northern and central portions of east Texas, but a single specimen was collected in extreme south-central Oklahoma.

Specimens Examined (256). UNITED STATES. OKLAHOMA: Marshall Co., near Willis, vi:1965 (UCDC:1). TEXAS: Anderson Co., Engeling Wdlf. Manag. Ar., vi:13:1992 (EGRC:31), Salmon, v:1– 15:1974 (TAMU:2), v:17–vi:6:1975 (TAMU:3), vi:9–27:1975 (TAMU:1), vi:27–vii:11:1975 (TAMU:4), vii:20–viii:3:1975 (TAMU:2), viii:4–10:1975 (TAMU:1), viii:10–17:1975 (TAMU:1); Angelina Co., 10 mi. N Lufkin, v:9:1952 (AMNH:6); Harrison Co., Karnack, v:17:48 (OSUC:2); Houston Co., Kennard, v:30:1992 (EGRC:8); Leon Co., 1 mi. E Jct. hwy 81 on hwy 7, v:30:1992 (EGRC:18); 5 mi. E Normangee on hwy OSR, v:30:1991 (EGRC:5); near Oakwood, v:24:1991 (MSS:49), Oakwood, vi:4:1956 (CMNC:4); Robertson Co., 4.3 miles north jct OSR & FM 1940 (TAMU:1).

Temporal Data. Collecting dates ranged from 1–15 May to 10–17 August (both records from Malaise traps).

Natural History. Plant associations include Parthenocissus quinquefolia (L.), Vitis aestivalis Michx. var. lincecumii (Buckley) Manson , V. mustangensis Buckley , V. rotundifolia Michx. var. rotundifolia , and Vitis sp. (Vitaceae) . A single specimen was collected on Gaillardia sp. (Asteraceae) ; additional specimens were taken in Malaise traps.