Orchestomerus eisemani Yoshitake and Anderson

Yoshitake, Hiraku & Anderson, Robert S., 2015, A Review Of The Genus Orchestomerus Dietz (Coleoptera: Curculionidae: Ceutorhynchinae: Cnemogonini) Of The Usa, The Coleopterists Bulletin 69 (4), pp. 565-578 : 569-575

Orchestomerus eisemani Yoshitake and Anderson , new species

( Figs. 3, 4 , 17–24 )

Orchestomerus wickhami ; Eiseman 2014: 158 (biology).

Diagnosis. Orchestomerus eisemani closely resembles O. wickhami in general appearance, but can be readily distinguished from O. wickhami by the rostrum with apex as wide as portion above antennal insertions, weaker prominences on the middle of the pronotum, slightly longer elytra, deeper lateral impressions on abdominal ventrite 5, male abdominal ventrite 5 with a deeper median impression, which is covered with lanceolate to acicular scales, and the aedeagus with a broad laminate apical projection.

Description. Male. LB = 2.16–2.20 mm. WF = 0.15–0.16 mm. LR = 0.75–0.79 mm. WR = 0.20 mm. WAR = 0.20 mm. LP = 0.79–0.83 mm. WP = 0.98–1.04 mm. LE = 1.58–1.61 mm. WE = 1.60–1.71 mm. n = 2 for all measurement variables. Habitus as shown in Figs. 3 and 4 . Brown to dark brown in general appearance. Apex of rostrum, apices of elytra and femora, and tibiae tinged with red. Antennae and tarsi much paler. Body surface moderately shiny, except venter with stronger luster, thinly covered with ochreous secretion in life. Head mostly moderately clothed with brownish narrow scales; each scale truncate at apex; vertex and portions along eye margins covered with paler scales, mingled with white elliptic ones; forehead with stripe of light-colored scales. Rostrum covered with narrow to linear scales on basal 2/3, then covered with short hairs, which become minute and sparse toward apex. Prothorax mostly clothed with scales as those on head, except lateroventral parts with sparse, hair-like scales, with the following markings of white elliptic scales: antescutellar patch at middle of basal margin, dorsolateral stripe from base to subapical part on each side, and 3 obscure, small spots along apical margin; median prominences and lateral tubercles covered with dark scales. Elytra mostly clothed with brownish narrow scales, mottled with black and white ones; black scales narrow, forming conspicuous longitudinal patches on antemedian parts of intervals III and subbasal parts of intervals V, respectively; white scales narrow to elliptic, forming 2 obscure oblique bands; white patches on middle of intervals VII often conspicuous; suture with postscutellar patch of velvety black elliptic scales, which is followed by 2 rows of white elliptic scales; subapical calli covered with dark, narrow scales. Legs moderately covered with light-colored, narrow to linear scales, mingled with darker ones; each femur with 2 indefinite bands of dark scales, one on subbasal and another on subapical parts; tibiae covered with paler setae on apical part. Lateral pieces of meso- and metasterna mostly clothed with light-colored scales; mesepisterna clothed with ovate and narrow scales; mesepimera very densely covered with ovate to elliptic scales on upper 1/3; metepisterna with 2 patches of dark scales. Sterna densely clothed with light-colored elliptic to lanceolate scales, mingled with darker linear ones; scales become sparser on sides. Venter rather densely covered with white, elliptic scales on middle; ventrite I with basal and lateral margins fringed with sparse, white scales in a row; ventrites II–IV each with transverse row of white scales; ventrite V covered with suberect lanceolate to acicular scales on median impression, glabrous on lateral impressions; apical margin of ventrite V shallowly roundly produced in middle. Pygidium densely covered with white, elliptic and brown hairs; white scales sometimes forming longitudinal stripe. Head coarsely reticulately punctured; forehead between eyes narrow, moderately impressed, carinate along midline. Rostrum relatively slender, LR/WR 3.75–3.94, slightly shorter than prothorax, LR/LP 0.95, slightly wider than forehead, WR/WF 1.23–1.33, longitudinally wrinkled-punctured and carinate along midline on basal 2/3; median carina flanked by 2 shorter keels; sides subparallel on basal 2/3, slightly narrowing before level between antennal insertions, then slightly widened apically; apex subglabrous, as wide as portion above antennal insertions, WR/WAR 1.00. Antennae inserted at middle of rostrum, with scape nearly as long as funicular segments I–IV combined. Prothorax slightly wider than long, WP/LP 1.24–1.26; pronotum reticulately punctured, with a pair of ridged prominences on middle; ridges obtuse; paired prominences sometimes weaker; lateral tubercles well-developed; sides subparallel on basal half, then rapidly narrowing to subapical constriction. Elytra subcordate, slightly shorter than or nearly as long as wide, LE/WE 0.94–0.98, nearly twice as long as prothorax, LE/LP 1.95–2.00, much wider than prothorax, WE/WP 1.64–1.65; intervals III, V, and VII with moderately developed prominences on subbasal parts; prominences on intervals III and V relatively long; granules on each interval minute; sides weakly bisinuate on basal half, then sharply narrowing to subapical calli, and finally shallowly rounded at apices. Tibiae mucronate on mid and hind legs; fore and mid-tibiae not angulate basally on outer margins; mid-tibiae relatively slender. Lateral pieces of meso- and metasterna opaque; metasterna sparsely punctured; mesepimera sparsely punctured, except upper 1/3 finely densely punctured; metepimera moderately punctured. Metasternum widely impressed and finely reticulately punctured; punctures become coarser and sparser on sides. Ventrite I flattened and finely densely punctured on middle, sparsely with coarse punctures along basal margin and on sides. Ventrites II–IV strongly concave and finely densely punctured on middle, each with transverse row of punctures on entire width except middle. Ventrite V densely, finely punctured, with deep impression on middle; lateral impressions very strong, opaque. Pygidium pentagonal, strongly convex, densely punctured, more or less sulcate along midline. Spiculum gastrale ( Fig. 19 ) nearly as long as aedeagal body and its apodeme combined, moderately curved leftward. Tegmen ( Fig. 20 ) with very short apodeme. Aedeagal body ( Figs. 17, 18 ) robust, with U-shaped prominence on basal part, rather strongly curved and thick in profile; sides with subtriangular laminae at base, strongly expanded to basal 1/3, slightly narrowing to middle, then rapidly convergent apically; apex produced into broad lamina, obliquely truncate; apodemes slightly shorter than body. Endophallus ( Fig. 17 ) short, nearly as long as aedeagal body and its apodeme combined, basally with the following three patches: basal patch of coarse denticles, larger subbasal patch of smaller denticles and acicular spicules, and small patch of acicular spicules; median part densely spiculate; apical part minutely spiculate medially.

Female. LB = 2.20–2.25 mm. WF = 0.15–0.18 mm. LR = 0.83–0.88 mm. WR = 0.20–0.21 mm. WAR = 0.20–0.21 mm. LP = 0.83–0.86 mm. WP = 1.03– 1.08 mm. LE = 1.63–1.64 mm. WE = 1.68–1.74 mm. n = 2 for all measurement variables. Rostrum slightly more slender, LR/WR 4.12–4.13, nearly as long as prothorax, LR/LP 1–1.01, slightly wider than forehead, WR/WF 1.21–1.33; apex as wide as portion above antennal insertions, WR/WAR 1.00. Antennae inserted just behind middle of rostrum. Prothorax slightly wider than long, WP/LP 1.24–1.25. Elytra slightly shorter than or nearly as long as wide, LE/WE 0.94–0.97, nearly twice as long as prothorax, LE/LP 1.90–1.97, much wider than prothorax, WE/WP 1.62–1.63. Tibiae not mucronate; mid-tibiae stouter. Ventrites I and II slightly inflated. Metasternum with deeper receptacle for rostrum. Ventrites III and IV faintly impressed on middle. Ventrite V with triangular glabrous portion on middle. Pygidium smaller, with lateral margins more rapidly narrowing to shorter lower margin. Terminalia as illustrated in Figs. 21–24 . Sternites VIII ( Fig. 22 ) robust, with vestigial apodemes. Ovipositor ( Figs. 21, 23 ) with large sclerite on each side of insertion of spermathecal duct; coxites nearly 4 times as long as styli; styli subconical, nearly 1.5 times as long as broad, inserted apicolaterally. Spermatheca ( Fig. 24 ) with cornu bilobed, bearing small process at apex of each lobe; ramus less-marked; collum well-marked, abruptly convex; gland long, nearly 3 times as long as body. Otherwise, as in males.

Type Material. HOLOTYPE: male ( CMNC), “MA: Plymouth Co. / Bridgewater, N. of Lake / Nippenicket , 16.viii.2013 /emerg on 31VIII-5.IX. 2013 / C. S. Eiseman , ex./ Parthenocissus leaf mines” (typed on white card); “ ♂ ”; “ Orchestomerus / wickhami / Dtz. /det. R. S. Anderson 2013” (handwritten on white card, partially typed); “ HOLOTYPE / Orchestomerus / eisemani n.sp. /des. Yoshitake & Anderson, 2014” (typed on red card) . PARATYPES. USA: ALABAMA. Monroe County, 2 miles southwest Peterman, 31°34′22″N, 87°16′51″W, 21. iii.–12. iv. 2005 , R. A. Wingard , by Lindgren funnel trap (1 male, MEM) . ARKANSAS. Newton County, Buffalo National River, Trail to Fitton Cave 2 km northwest of Erbie Campground , 36°5′15″N, 93°13′54″W, 26–28. vi. 1994 , C. E. Carlton , by flight intercept trap (1 female, LSAM) . FLORIDA. Alachua County: 29°36′N, 82°22′W, 200 m, 4–11. iv. 1992 , J. Pickering (1 female, CWOB); Gainesville, Beville Heights, 16–31. x. 1986 , L. A. Stange (1 male, CWOB); Gainesville, 29°36.04′N, 82°21.90′W, 1-13. IV.2001 , D. B. Wahl , malaise trap (1 male, TAMU). Paynes Prairie State Preserve, 15. v. 1991 , Fairchild and Roberts , by malaise trap (1 male, CWOB). Highlands County, Archbold Biological Station : 14. v. 1979 , H. V. Weems, Jr. and S. Halkin , by “ INSECT FLIGHT TRAP ” (1 female, CWOB); 2–4. iii. 1979 , H. V. Weems, Jr. and S. Halkin , by “ INSECT FLIGHT TRAP ” (1 female, CWOB). Leon County. Appalachicola National Forest, FS 390, 30°21.884′N 84°40.774W, malaise trap, bottomland, 21–28 May 2005 , S. Joshi (1 female, CMNC). Tallahassee: 5. iii. 1976 , C. W. O’ Brien , from hardwood litter (1 female, NIAES); 27. x. 1976 , L. D. Justice , from hardwood litter (1 male, NIAES); 11. xi. 1976 , C. W. O’ Brien and G. B. Marshall , from hardwood litter (1 male, CWOB); 19. ix. 1977 , C. W. O’ Brien et al., from mixedhardwood litter (1 male, CWOB); 18. i. 1983 , G. B. Marshall, from hardwood litter (1 male, 1 female, CWOB). Wakulla County, Wakulla Springs State Park , “summer 2000”, by pitfall trap in beech woods , C. W. O’ Brien (1 male, CWOB). Walton County, Defuniak Springs , 21–28. vii. 1991 , Winegarner and Deyrup , by malaise trap in woods near stream (1 female, CWOB) . INDIANA. Tippecanoe County, 11 miles west of Lafayette , Ross Hills Park, 40°24′14.78″N 87°04′20.72″W: 15. v. 2013 , K. E. Schnepp, on Virginia creeper (1 male, 1 female, KESC); 10. ii. 2009 , K. E. Schnepp , sifted from leaf litter (1 male, CMNC) . KANSAS. Douglas County. Clinton Lake , 1 km southwest of dam, off east of 900 Road, 38.901°N, 95.33459°W, 16. x. 2010 , Z. H. Falin (1 female, SEMC [ KUNHM-ENT; SEMC0928475 ]). 3.2 km north of Baldwin, Breidenthal Reserve , 7–14. vi. 1996 , M. Panaras (1 female, SEMC [ KUNHM-ENT; SM0132962 ]). Breidenthal Reserve: 2 miles north of Baldwin , 5–19. vi. 1982 , D. B. Wahl (1 female, SEMC [ KUNHM-ENT; SM0348413 ]) . K. U. Natural History Reserve , 5 mi northeast Lawrence, 1. vii. 1982 , D. B. Wahl (1 female, CNCI). Jefferson County, The Falin Property , 1.5 km north of junction of 94th Street and Kingman Road, 39°13.38′N, 95°24.24′W, 20–27. vi. 2005 , Z. H. Falin (1 female, SEMC [ KUNHM-ENT; SM0707952 ]) . KENTUCKY. Edmonson County, Mammoth Cave National Park , 15. v. - 20. viii. 1983 , S&J Peck, mesic forest (1 male, CNCI). Rowan County, 24 km southwest Morehead Cave Run Lake , 14. v. - 2. viii. 1983 , S&J Peck, Fagus (1 male, CNCI) . LOUISIANA. Bossier Parish, Barksdale Air Force Base , 32°30′58″N, 93°32′44″W, 30. iv.–6. v. 1996 , D. M. Pollock, malaise trap in pine/hard wood forest (1 female, MEM). West Feliciana Parish, Feliciana Preserve : 30°47′N, 91°15′W, 22–29. v. 2005 , A. Tishechkin and S. Gil , by flight intercept trap (1 male, CWOB); 15. vi.–7. vii. 2001 , A. Cline and A. Tishechkin , by flight intercept trap (1 female, CMNC); 30°47′N, 91°15′W, 11. v.–4. vii. 2003 , A. Tishechkin , by flight intercept trap (1 male, CWOB); 29. v.–12. vi. 2005 , A. Tishechkin, by flight intercept trap (4 males, ASUHIC, CMNC, CWOB); Tunica Wildlife Management Area , 30°55′N, 91°30′W, 14–30. ix. 1998 , C. Carlton , J. Johnson and A. Tishechkin , by flight intercept trap (1 female, CWOB) . MARYLAND. College Park , 18. vii. 1942 , L. J. Bottimer , Virginia creeper (2 males, 3 females, CNCI). Allegany County, Little Orleans, 1. vi. 2001 , C. R. Bartlett (1 female, CWOB). Montgomery County, 4 miles southwest of Ashton , 39°06′30″N, 77°01′30″W, 6. vii. 2011 , G. F. Hevel , by flight intercept trap (1 female, USNM). Prince George’ s County, 39°03′N, 76°47′W, “ 31-07 Sept. 1992,” J. Pickering (1 male, CWOB) . MASSACHUSETTS. Plymouth County: same data as the holotype (1 male, 1 female, CMNC); Ragged Island , 42°15′26.1″N, 70°53′26.7″W, 22. vi. 2006 , J. Rykken , by malaise trap, RG- MAL-1 12.06 (1 female, CMNC) . MISSISSIPPI. Grenada County , T21 N, R2 E, Sec. 12, 13N and R3 E, Sec. 7S, 18N: 26. vi.–2. vii. 1991 , P. Miller , by malaise trap in woods (2 males, MEM); 18. v.–2. vi. 1992 , G. Snodgrass, malaise trap in woods (1 female, MEM). Prentiss County, Natchez Trace , mi 288.4, 34°29′04″N, 88°23′42″W, 21. vii. 2003 , J. A. MacGown, from soil and litter under and near rotting log in deciduous forest (1 female, MEM). NORTH CAROLINA. Durham County, Durham , Strebor Street , 29.v.2015 , emerged 14.vi.2015, T. S. Feldman , ex. Parthenocissus quinquefolia , #CSE 1617 (3 females, CMNC, USNM). 29.v.2015 , emerged 24.vi.2015, T. S. Feldman and C. S. Eiseman, ex. Parthenocissus quinquefolia , #CSE 1675 (3 males, 1 female CMNC). OHIO. Hocking County, Conkle’ s Hollow State Park , 12. viii. 1979 , L. E. Watrous, from litter near swamp (1 female, CWOB). Lawrence County, Wayne National Forest , Sharps Creek , Bluegrass Trail , 7–28. vi. 1995 , P. W. Kovarik, by flight intercept trap (1 female, CWOB). TENNESSEE. Cocke County, Great Smoky Mountains National Park , ATBI Plot, Snakeden Ridge, malaise trap 1920010801, 16 Jul – 1 Aug, 2001 , I. C. Stocks and K. Pitz (1 female, CMNC). Davidson County, Couchville Glade , 36°06′05″N, 86°31′47″W, 10. vi. 1997 , G. Hankins, in Cedar Glade , W. H. Cross Expedition (1 female, MEM). Sevier County, Great Smoky Mountains National Park , ATBI Plot, Twin Creeks, malaise trap 0120010910, 83°29.94′ W, 35°41.10′N, 27 Aug – 10 Sept 2001 , I. C. Stocks (1 male, LSAM); malaise trap 0120000703, 19 Jun – 3 Jul , 2000, Parker , Stocks and Peterson (1 female, LSAM); Goshen Prong, malaise trap 2120010813, 83°32′34″W, 35°36′38″N, 30 Jul – 13 Aug, 2001 , I. C. Stocks (1 female, LSAM); malaise trap 2120010618, 7–18 Jun, 2001 , I. C. Stocks and M. Williams (1 female, LSAM). TEXAS. Sabine County, 9 miles east Hemphill, ‘beech bottom’, 20. III.-29. IV.1990 , R. Anderson & E. Morris , flight intercept trap, beech-magnolia forest (1 female, TAMU). 6-16. VIII.1989 , R. Anderson & E. Morris , flight intercept trap, beech-magnolia forest (1 male, CMNC). 25. VIII.-10. IX.1989 , R. Anderson & E. Morris , flight intercept trap, beech-magnolia forest (1 female, TAMU). Williamson County, 6. VI.1959 , S. D. and H. R. Burke (1 female, TAMU). VIRGINIA. Charles City County, VCU Rice Center, trap site 4, 0.4 miles south of Junction of State Highway 5 and Kimages Road, N 37.32693, W077.19618, 17 vi.–18. vii. 2010 , A. V. Evans, by malaise trap in deciduous woods (1 female, AVEC). Wise County, Powell Mountain Karst Preserve, ca. 1.3 km East of Cracker Neck Church, N36.8538533, W082.6998265, 13–27. v. 2009 , C. S. Hobson and J. F. Townsend, by malaise trap on cedar ridge (1 male, VMNH). Virginia Beach, City Camp Pendleton Annex, northwest of Junction of S. Birdneck and Washington Roads, N 36.81385, W075.97079, 22. vii.–19. viii. 2009 , A. V. Evans, by malaise trap (1 female, CMNC). WEST VIRGINIA. Hardy County, Moorefield , 22. vi. 1976 , W. Northeimer and K. Elrod , by malaise trap (1 female, CWOB) .

Distribution. USA (Alabama, Arkansas, Florida, Indiana, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Mississippi, North Carolina, Ohio, Tennessee, Texas, Virginia, West Virginia) (MAP; yellow placemarker).

Natural History. Eiseman (2014) recorded this species as a leaf miner of Virginia creeper in Massachusetts. Specimens from North Carolina were also reared from Virginia creeper, and two specimens from Indiana and five specimens from Maryland were also collected on Virginia creeper .

Orchestomerus marionis ( Fall, 1913) , resurrected name and new combination ( Figs. 5, 6 , 25–32 )

Auleutes marionis Fall 1913: 68 (type locality: “ Marion, Massachusetts ”). Blatchley and Leng 1916: 434; O’ Brien and Wibmer 1982: 171; Downie and Arnett 1996: 1597.

Diagnosis. Orchestomerus marionis resembles O. whiteheadi in general appearance, but is readily separable from it by the following points: body mostly black; rostrum slender; prothorax roundly narrowing from middle to subapical calli; median paired prominences on pronotum weak and obtuse; elytral intervals minutely granulate, except subapical calli with larger and sharper granules; elytral sides definitely bisinuate on basal half of each side; middle and hind tibiae mucronate in males; corbels basally definitely angulate on middle and hind legs; and apical margin of male abdominal ventrite 5 weakly roundly produced in the middle.

Redescription. Male. LB = 2.20–2.53 mm (mean 2.35 mm). WF = 0.18–0.21 mm (mean 0.19 mm). LR = 0.83–0.96 mm (mean 0.88 mm). WR = 0.20–0.23 mm (mean 0.21 mm). WAR = 0.21–0.23 mm (mean 0.22 mm). LP = 0.81–0.95 mm (mean 0.88 mm). WP = 0.95–1.14 mm (mean 1.04 mm). LE = 1.58–1.81 mm (mean 1.68 mm). WE = 1.60–1.91 mm (mean 1.74 mm). n = 5 for all measurement variables. Habitus as shown in Figs. 5 and 6 . Integument mostly black, except apices of rostrum, prothorax, elytra, femora, and tibiae tinged with red; antennae and tarsi paler. Body mostly covered with hair-like to linear scales; head covered with light-colored scales, except median part with dark scales; prothorax and elytra mostly covered with dark scales, mottled with light-colored scales, mingled with white ovate to elliptic scales. Pygidium mostly covered with brownish hairs and hair-like scales, except lower margin fringed with white scales. Head coarsely reticulately punctured; forehead between eyes relatively wide, weakly impressed, not carinate. Rostrum relatively slender, LR/WR 3.72–4.38 (mean 4.13), nearly as long as prothorax, LR/LP 0.97–1.03 (mean 1.01), as wide as or slightly wider than forehead, WR/WF 1.00–1.29 (mean 1.11), WAR/WF 1.06–1.29 (mean 1.15), carinate from base to subapical part along midline; carina flanked by two shorter carinae on basal half; apex subglabrous, nearly as wide as portion above antennal insertions, WR/WAR 0.95–1.00 (mean 0.98). Antennae inserted at middle of rostrum. Prothorax slightly wider than long, WP/LP 1.17–1.20 (mean 1.19); pronotum with a pair of weak, obtuse prominences on middle, not ridged; sides roundly narrowing from middle to subapical calli. Elytra nearly as long as wide, LE/WE 0.95–0.99 (mean 0.97), slightly less than twice as long as prothorax, LE/LP 1.90–1.95 (mean 1.92), much wider than prothorax, WE/WP 1.65–1.70 (mean 1.68); granules on each interval minute, except subapical calli with larger and sharper granules; intervals III, V, and VII with welldeveloped, obtuse prominences on subbasal parts, respectively; sides definitely bisinuate on basal half. Metasternal receptacle deep, terminated apically in U-shaped margin. Legs relatively stout; mid- and hind tibiae definitely angulate at base of each corbel and mucronate apically; mid-tibiae short and stout, not angulate basally on outer mar- gins. Venter subopaque, weakly shiny; ventrites III and IV flattened on middle; ventrite V moderately impressed on middle; apical margin of ventrite V shallowly roundly produced in the middle, with weak lateral impressions. Pygidium evenly moderately convex, not sulcate. Spiculum gastrale ( Fig. 27 ) short, slightly longer than aedeagal body or its apodeme, weakly curved leftward. Tegmen ( Fig. 28 ) with well-developed apodeme, which is nearly half as long as diameter of ring. Aedeagal body ( Figs. 25, 26 ) relatively slender, narrowest at base, strongly expanded to basal 1/4, strongly narrowing to middle, then gradually narrowing apically, weakly expanded just before apex, and finally shallowly rounded at apex, with a pair of weak slender prominences on basal part, thin, weakly bisinuate and barely tapered apically in profile; apodeme nearly as long as body. Endophallus ( Fig. 25 ) relatively short, slightly longer than aedeagal body or its apodeme, with longitudinal patch of small conical spicules from base to postmedian part, bearing a subtriangular plate-like sclerite on middle, minutely spiculate on antimedian part; apical part with a pair of slender, well-pigmented portions.

Female. LB = 2.31–2.50 mm (mean 2.42 mm). WF = 0.19–0.21 mm (mean 0.20 mm). LR = 0.90–0.95 mm (mean 0.93 m). WR = 0.21–0.23 mm (mean 0.22 mm). WAR = 0.22–0.23 mm (mean 0.22 mm). LP = 0.85–0.95 mm (mean 0.91 mm). WP = 0.99–1.15 mm (mean 1.08 mm). LE = 1.68–1.84 (mean 1.75 mm). WE = 1.67–1.89 mm (mean 1.79 mm). n = 5 for all measurement variables. Rostrum barely slenderer, LR/WR 4.19–4.41 (mean 4.31), nearly as long as prothorax, LR/LP 0.99–1.06 (mean 1.02), nearly as wide as or slightly wider than forehead, WR/WF 1.03–1.13 (mean 1.09), WAR/WF 1.08–1.20 (mean 1.13), with shorter carina, which is limited on basal half; apex as long as or barely wider than portion above antennal insertions, WR/WAR 0.92–1.00 (mean 0.96). Prothorax slightly wider than long, WP/LP 1.17–1.22 (mean 1.19). Elytra nearly as long as wide, LE/WE 0.95–1.00 (mean 0.98), slightly less than twice as long as prothorax, LE/LP 1.79–1.94 (mean 1.84), much wider than prothorax, WE/WP 1.62–1.70 (mean 1.66). Tibiae simple, not mucronate. Metasternum with deeper receptacle for rostrum; apical margin of receptacle V-shaped. Ventrites I and II slightly inflated. Ventrites III and IV simple, not flattened on middle. Ventrite V simple, neither with impression nor glabrous portion on middle: lateral impressions much weaker, often vestigial. Pygidium slightly smaller, weakly convex, with lateral margins more rapidly narrowing to shorter lower margin. Terminalia as illustrated in Figs. 29–32 . Sternite VIII ( Fig. 30 ) simple, with apodemes moderate in length, nearly twice as long as arms. Ovipositor ( Figs. 29, 31 ) simple, lacking sclerotized portion; coxites ( Fig. 31 ) nearly 3 times as long as styli; styli ( Fig. 31 ) slender, subcylindrical, nearly three times as long as wide, inserted apically. Spermatheca ( Fig. 32 ) with cornu simple, lacking remarkable structures; ramus weakly convex; collum well-marked, rather sharply projected; gland relatively long, nearly 3 times as long as body. Otherwise, as in males.

Type Material. The holotype ( MCZC) was not examined by us. Our identification was based on three specimens compared with the holotype of A. marionis by C. W. O’ Brien in 1980. Additionally, Fall’ s (1913) statement accompanying the original description that “the facies is almost precisely that of Craponius inaequalis , the generic characters are however, those of Auleutes ” fits well with our specimens of A. marionis , which are very similar in habitus to C. inaequalis except for the externally subbasally dentate tibiae in the latter.

Material Examined. USA: FLORIDA. Gadsden County, 4 miles southeast of Havana, at junction of Highway 153 and Ochlockonee River , 13. i. 2000 , C. W. O’ Brien and G. B. Marshall , berlese sifted mixed hardwood litter (1 female, CWOB). Marion County, 2.5 miles south-southeast Micanopy, 6-13. III.2001 , D. B. Wahl (1 male, TAMU) , GEORGIA. Clarke County, Whitehall Forest : 18. iv. 1975 , R. Turnbow (2 males, ASUHIC, CWOB); 2–7. iv. 1976 , R. Turnbow , Leggett trap (1 male, CMNC); 16. iv. 1975 , R. Turnbow (1 male, CWOB); 20. iv. 1975 , R. Turnbow (1 female, CWOB). Decatur County Experimental Forest , on Highway 97 near Faceville, 2. vi. 2000 , C. W. O’ Brien , ex wild grape (1 female, CWOB) . INDIANA. Brown County, Bear Wallow, 1. vi. 1977 , J. E. Wappes (1 female, NIAES) . MISSISSIPPI. Claiborne County, 4 miles west of Port Gibson , 25. iv. 1973 , W. H. Cross , in Leggett trap (1 male, NIAES). George County, Lucedale, 24. iv. 1996 , C. W.O’ Brien (1 female, CWOB) . MISSOURI. Barry County, Roaring River Park, Camp Area #1, 3. v. 1980 , D. L. Caldwell , on wild grape (1 male, 1 female, CWOB) . NORTH CAROLINA. Lewiston, Peanut Belt Research Station , 2. viii. 1963 , J. F. Cornell (1 female, CWOB) .

Distribution. USA (Florida, Georgia, Massachusetts, Missouri, Mississippi) (MAP; blue placemarker).

Natural History. Some specimens were taken on wild grape, Vitis sp. (Vitaceae) , in Georgia and Missouri. One specimen was collected by sifting leaf litter in winter in Florida.

Figures

Figs. 1–8. Orchestomerus species,habitus.1–2) O. wickhami, male; 3–4) O. eisemani, holotype male; 5–6) O. marionis, male; 7–8) O. whiteheadi, male.

Figs. 9–24. Orchestomerus species, male genitalia and female terminalia. O. wickhami: 9) Aedeagus, dorsal view; 10) Aedeagus, lateral view; 11) Sternite IX; 12) Tegmen; 13) Female terminalia; 14) Sternite VIII; 15) Coxite and stylus; 16) Spermatheca. O. eisemani: 17) Aedeagus, dorsal view; 18) Aedeagus, lateral view; 19) Sternite IX; 20) Tegmen; 21) Female terminalia; 22) Sternite VIII; 23) Coxite and stylus; 24) Spermatheca. Scale bar = 0.1 mm.

Figs. 25–40. Orchestomerus species, male genitalia and female terminalia. O. marionis: 25) Aedeagus, dorsal view; 26) Aedeagus, lateral view; 27) Sternite IX; 28) Tegmen; 29) Female terminalia; 30) Sternite VIII; 31) Coxite and stylus; 32) Spermatheca. O. whiteheadi: 33) Aedeagus, dorsal view; 34) Aedeagus, lateral view; 35) Sternite IX; 36) Tegmen; 37) Female terminalia; 38) Sternite VIII; 39) Coxite and stylus; 40) Spermatheca. Scale bar = 0.1 mm.