Isoplastus floridanus Peck and Cook, 2013

Peck, Stewart B. & Cook, Joyce, 2013, Systematics and distributions of the genera Cyrtusa Erichson, Ecarinosphaerula Hatch, Isoplastus Horn, Liocyrtusa Daffner, Lionothus Brown, and Zeadolopus Broun of the United States and Canada (Coleoptera: Leiodidae: Leiodinae: Leiodini), Insecta Mundi 2013 (310), pp. 1-32 : 8-9

Isoplastus floridanus Peck and Cook , new species

( Fig. 3 , 17 )

Description. Length (pronotum + elytra) = 1.36–1.80 mm; greatest width = 0.96–1.36 mm. Yellowish to reddish brown, shiny. Head moderately coarsely, irregularly punctate. Antennomere 2 clearly longer and broader than 3; antennomere 7 thin, less than half as wide as 8; apical antennomere distinctly narrower than 9. Sides of pronotum rounded, posterior angles obtuse. Pronotum finely, moderately sparsely punctate. Elytral strial punctures coarse, closely spaced; strial rows reach base on inner half of elytra. Interstrial punctures fine, moderately sparse. Metasternum moderately coarsely, irregularly punctate. Legs as in generic diagnosis. Abdominal sternites III–VIII weakly rugose, each with transverse row of small punctures on apical half. Median lobe of aedeagus ( Fig. 3 ) evenly curved in lateral view; acute tips of paired apices inwardly curved. Parameres not extending beyond apex of median lobe. Armature of inverted internal sac as in Fig. 3 .

Type material. Holotype, male, in SBPC, with label data:“ Archbold Biol. Sta ./ Lk. Placid / Highlands Co. FLA./ 2 July 1986 / M. Deyrup // Malaise Trap / Trail 1 SSo ” .

Paratypes, 41, as follows: “ FLORIDA: Collier Co. / Naples / V-16 1984 / R.A. Belmont, colr./ u.v. blacklight trap ” (1, FSCA) ; same data except “ VII-16 1984 ” (2, FSCA) ; “ FLORIDA: Gilchrist Co. / W. High Springs, nr Poe / Springs ; 14-VI-1994 / C. Hernandez, pitfall ” (2, FSCA) ; same data as holotype except “ 3 Sept. 1986 // Trail 2 SSo” (1, ABSC) ; same data except “ 30 Aug. 1983 ” (1, ABSC) ; same data except “ 8 Aug 1987 // SSo” (1, ABSC) ; same data except: “ 5 May 1985 // Trail 2 SSo” (1, ABSC) ; same data except “ 29 Aug 1987 // SSo” (2, ABSC) ; “ Archbold Biol. Sta ./ Lk. Placid / Highlands Co. FLA/ 19 Aug 1993 / M. Deyrup ” (1, ABSC) ; FL: Highlands Co. / Archbold Biol. Sta. / 18 June 1998; Mark Deyrup // in malaise trap in/ scrubby flatwoods / near weather/ station ” (1, ABSC) ; FL: Highlands Co. / Archbold Biol. Sta. / 28 August 2009 / M. Deyrup, H. Otte // flight trap w. pan/ Ceratiola habitat / Site 2. N27.14512 / W081.35766 ” (1, ABSC) ; “FL: Highlands Co. / Carter Ck. North / 13 April 2009 / M. Deyrup, A. May, H. Otte // Yellow sand scrub/ N27.533, W081.412 / bowl traps / fringe tree area ” (2, SBPC) ; same data except: “ 14 April 2009 // Townes trap / N27.53362 / W081.40720 ” (4, SBPC) ; “FL: Highlands Co. / Flamingo Villas / 22 May 2009 / M. Deyrup, A. May, H. Otte // scrub habitat/ Townes trap / N27.44228 / W081.38276 ” (1, ABSC) ; “FL: Highlands Co. / Flamingo Villas Pres / 28 May 2009. H. Otte / A. May, M. Deyrup // flight trap w. pan/ scrub habitat / Site 4. N27.44231 / W081.37822 ” (1, SBPC) ; same data except: “ 26 May 2009 // Malaise trap / scrub habitat ” (1, SBPC) ; “FL: Highlands Co. / Highlands Hammock / State Park / 26 May 2009. H. Otte / A. May, M. Deyrup // flight trap w. pan/ scrub habitat / Site 4. N27.43213 / W081.51671 ” (1, ABSC) ; same data except: “ 27 May 2009 // scrub habitat / flight trap pan/ N27.43378 / W081.51613 ” (1, ABSC) ; same data except: “ 4 Aug. 2009 // scrub habitat / bowl trap / N27.48192 / W081.52861 ” (1, ABSC) ; same data except: “ 6 Aug. 2009 // yellow bowl trap / scrub habitat / Site 8. N27.48376 / W081.52372 ” (1, ABSC) ; “FL: Highlands Co. / Highlands Park / Estates. 14 Aug. 2009 / M. Deyrup, H. Otte / A. May // scrub habitat / flight trap / N27.53864 / W081.35071 ” (1, ABSC) ; FL: Highlands Co. / Lake June State Pk. / 28 May 2009 / M. Deyrup, A. May / H. Otte // Townes trap / scrub habitat / N27.29982 / W081.42441 ” (1, SBPC) ; same data except: “ 2 June 2009 // flight trap w. pan/ scrub habitat / N27.30001 / W081.42403 ” (2, SBPC) ; “ FLORIDA: Levy Co. / 4.0 mi SW Archer / 9-VI-1992; P.E./ Skelley, b-light ” (1, FSCA) ; “ FLORIDA: Levy Co. / 4.0 mi. SW Archer on/ Rt-24; 15-VI-1996 / P.E. Skelley. Uv light ” (2, FSCA) ; “FL: Polk Co. / A.D. Broussard / Catfish Ck. State Pk. / 5 Jun. 2009, M. Deyrup / H. Otte, A. May // flight trap with pan/ scrub habitat / N27.98598 / W081.49663 ” (1, SBPC) ; “FL: Polk Co. / Lake Marion Crk. / Estates / 28-V-1998 / R. Morris / FIT” (1, FSCA) ; FL: Polk Co. Lake / Wales Ridge Forest / 14 July 2009, H. Otte / A. May, M. Deyrup // flight trap w. pan/ scrub habitat / Site 5. N27.68668 / W081.49616 ” (1, ABSC) ; “FL: Polk Co., TNC/ Tiger Creek Pres./ 6 July 2009 / M. Deyrup, H. Otte / A. May // scrub habitat / flight trap / N27.82158 / W081.47717 ” (1, SBPC) ; “ UNITED STATES: FL: Sarasota Co., Myakka / River St. Pk. 16& 17.IV.08 / N27°16.5’ W82°16. 2.8 km / Liveoak-cabbage palm hammock / Eve car netting. S. Peck 08–45” (1, SBPC) .

Distribution. The species is known only from peninsular Florida, at the localities given above ( Fig. 17 ).

Seasonality. Adults have been collected from the months of April to September, and mostly in June to August.

Bionomics. Adults have been collected mostly in forest and scrub vegetation on sandy soils. They have been taken by malaise, flight intercept, blacklight, car net, and yellow bowl traps.

Etymology. This species is named for the state of Florida, U.S.A., where all know specimens have been collected.

Figures

Figure 17. North American distribution of Isoplastus fossor (black circles), I. floridanus (black triangles).

Figures 1–6. Aedeagi, dorsal, of Cyrtusa and Isoplastus species. 1) Cyrtusa subtestacea. 2) Isoplastus fossor. 3) I. floridanus. 4) L. luggeri. 5) L. nigriclavis. 6) L. stephani. Scale line = 0.3 mm.