Olibroporus punctatus Casey, 1890

Gimmel, Matthew L., 2017, Taxonomic Notes onOlibroporusCasey andPycinusGuillebeau (Coleoptera: Phalacridae), with Diagnosis and Distribution of the Widespread SpeciesOlibroporus punctatusCasey, The Coleopterists Bulletin 71 (1), pp. 61-73 : 63-69

Olibroporus punctatus Casey, 1890 ( Figs. 1–17 )

Olibroporus punctatus Casey 1890: 111 . Type locality: Florida.

Parasemus grouvellei Guillebeau 1894: 300 . Type locality: unknown, probably Neotropical.

New synonymy.

Type material. Olibroporus punctatus holotype, unsexed, “Fla // CASEY \ bequest \ 1925 // TYPE USNM \ 48930 [red label, number handwritten] // Pseudolibrus \ punctatus \ Csy. [handwritten, manuscript name?]” ( USNM). Parasemus grouvellei holotype, female, “ Australia [handwritten, locality almost certainly in error] // Grouvelle [handwritten] // HOLOTYPE \ Parasemus \ grouvellei Guillebeau \ det. M.L. Gimmel 2009 [red label]” ( Fig. 8 ) ( MNHN), point mounted .

Notes. I previously noted that the type locality of P. grouvellei was probably in error, since this specimen is indistinguishable from those of New World Olibroporus and no similar forms have been seen from Australia, or indeed from anywhere in the Old World ( Gimmel 2013). The Grouvelle collection, from which the holotype is derived, contains specimens from many localities in the New World, including some within the range of O. punctatus . Guillebeau (1894) did indeed recognize the similarity between Parasemus and Olibroporus , as he keyed them out in the same couplet, reproduced here (pp. 280–281):

“4 a. 1 er et 2 e articles des tarses postérieurs soudés, forme ovale. Type: punctatus ex Casey.............. ............................................... Olibroporus Casey 4 b. 1 er et 2 e articles des tarses postérieurs libres; tibias postérieurs obliquement tronqués au sommet; forme subhémisphérique. Type: Grouvellei, n. sp ........................ Parasemus n.g. ”

Despite these remarks, I observe no differences in the disposition of the hind tarsi (nor indeed in any significant characters) based on my examination of specimens of O. punctatus and the type of P. grouvellei . However, Guillebeau apparently relied solely on Casey’ s description for characters of O. punctatus —in fact, he stated explicitly that he did not examine the types of Casey or Sharp ( Guillebeau 1894). Therefore, I consider P. grouvellei a new junior synonym of O. punctatus .

Diagnosis. This species can be distinguished externally from other species of Olibroporus by the evenly globose body shape ( Figs. 1–2 ) and presence of dense microsculpture (easily visible at 50X) on the elytra ( Fig. 12 ) in combination with a poorly developed patch of setae centrally on the prosternum ( Fig. 14 ) and the arcuately rounded shape of the terminal antennomere (best seen in Fig. 3 ). In other Olibroporus species examined, either the terminal antennomere has a slight emargination on the medial (anterior) border, the elytra do not have visible microsculpture but rather possess spectral iridescence, or the body is flattened. Specimens of all other species examined also possess dense, overlapping setae medially on the disc of the prosternum ( Figs. 24–26 ). Additionally, the tegmen in O. punctatus is uniquely shaped, with duckbill-shaped, fused parameres with the basal piece more or less evenly tapered toward the apex ( Fig. 4 ). The penis also possesses paired tufts of spinules laterally before the apex, and a single, shallow, central emargination apically ( Fig. 5 ). Total length (excluding head) is 1.8–2.6 mm.

Geographical Variation. North of the southern border of the USA, the sutural stria extends more than half the length of the elytron, and the punctures in line with the stria are distinct and extend anteriorly nearly to the level of the scutellar shield. South of the USA border, the sutural stria extends about one-third the length of the elytron, while the punctures in line with the stria are very weak and do not extend anteriorly to the level of the scutellar shield. The Neotropical specimens also tend to be slightly larger on average. However, the aedeagal morphology was not observed to differ between these two variants. The type specimen of P. grouvellei ( Figs. 6–7 ) possesses the shorter sutural stria, indicating a Neotropical origin.

Distribution. Olibroporus punctatus is an extremely wide-ranging species in the New World ( Fig. 9 ): from the northeastern USA (New Jersey), west to Louisiana, and south to Florida; in the West Indies from Cuba and the Cayman Islands; from Mexico (Baja California Sur and San Luis Potosí) south to Panama; in South America, from Bolivia and southern Brazil (Santa Catarina and São Paulo). Despite having examined a large number of phalacrid specimens from Venezuela, the Guiana Shield, and the western Amazon Basin, I have seen no specimens of O. punctatus from these regions.

Material Examined. BELIZE: Corozal: Corozal , 31 August 1967, G. Lacey and R. Lacey (2, USNM) .

BOLIVIA: Santa Cruz: Tatarenda , October 1923, G.L. Harrington (1, USNM) .

BRAZIL: Santa Catarina: Nova Teutônia , 27°11′S 52°23′W, 300–500 m, March 1971, F. Plaumann (1, AMNH) ; same except September 1972 (2, AMNH) ; same except September 1974, on light (1, MCZ) ; Nova Teutônia, March, F. Plaumann (1, MCZ) ; same except November (4, MCZ); São Paulo: São Paulo, Mráz (2, NMPC) ; Piracicaba , 24 November 1964, W.E. Triplehorn and C.A. Triplehorn (1, OSUC) ; same except 22 January 1965 (2, FMNH) .

CAYMAN ISLANDS: Cayman Brac: 19°43.158′N, 79°47.579′W, 7 June 2008, blacklight, M.C. Thomas and R. Turnbow (1, FSCA) ; Grand Cayman: Mastic Trailhead S, 20 May 2009, R. Turnbow (1, FSCA) ; same except coll. M.C. Thomas (1, FSCA); Queen Elizabeth Botanical Garden , 28 May 2009, blacklight, M.C. Thomas, R. Turnbow and Ball (1, FSCA) .

CUBA: Cienfuegos: Soledad Gardens , Tillandsia , 14 October 1928, F. M. Carpenter (1, MCZ); Soledad, May–June 1939, C. Parsons (1, MCZ) .

GUATEMALA: Petén: 5 km N of Sayaxché , 19 October 2006, R. Turnbow (1, FSCA) .

HONDURAS: Atlántida: 51 km E La Ceiba , 28 May 1993, R. Turnbow (2, FSCA) ; Comayagua: 3 km W Horconcitos , 30 May 1995, R. Turnbow (1, FSCA) ; Parque Nacional Pico Bonito, Plan del Rancho , 15°32′02″N, 86°46′08″W, 1,215 m, 20 May 2001, R. Cave, Samayoa, and Hernández (1, EAPZ) ; Cortés: Parque Nacional Cerro Azul Meámbar , 20 May 1995, R. Turnbow (1, FSCA; 1, UGCA) ; Francisco Morazán: El Zamorano , Malaise trap in coffee plantation, 4–10 May 1990, R. Cave (1, EAPZ) ; same except 31 May 1990 (1, EAPZ) ; same except 7 Jun 1990 (1, EAPZ) ; 5 km E El Zamorano , 2 June 1993, R. Turnbow (2, FSCA) ; 23.6 km SSW Talanga , 3 June 1993, R. Turnbow (1, FSCA) ; 1 km W “ Hatilla ” [= El Hatillo], 29 May 1995, R. Turnbow (2, FSCA) ; Cerro Uyuca , 22 May 2002, J. Huether (1, FSCA) ; Olancho: Montaña del Malacate , 26 July 2001, R. Turnbow (1, FSCA) ; Santa Bárbara: vicinity of Zacapa , 30 May 1993, R. Turnbow (1, FSCA) ; same except M. C. Thomas (2, FSCA) ; El Merendon, 10 October 1993, R. Turnbow (1, FSCA) ; Yoro: 8 km N La Habana , 4 June 2003, R. Turnbow (1, FSCA) .

MEXICO: Baja California Sur: 10 km S La Paz , mercury vapor and blacklight, 26 August 1994, R. Turnbow (1, FSCA) ; 24 km W Ramal a Los Naranjos , mercury vapor and blacklight, 28 August 1994, R. Turnbow (1, FSCA) ; 4.3 mi. W Ramal a El Rosario from highway 1, 6–7 September 1988, E. G. Riley (1, FSCA; 1, TAMU) ; Chiapas: 32.5 mi. E Comitán on rte. 190, 2200′, 1 September 1965, G. E. Ball and D. R. Whitehead (1, USNM) ; El Aguacero, 3 October 1986, R. Turnbow (1, FSCA) ; “Chorreadera St. Pk.” [= Parque Turístico Cascada “ El Chorreadero”], 26 May 1987, D. B. Thomas, D. A. Rider, E. G. Riley, and T. J. Riley (2, LSAM) ; Quintana Roo: 17 km N Felipe Carrillo Puerto , 29 June 1990, M. C. Thomas (1, FSCA) ; 24 km N Felipe Carrillo Puerto , 27 May 1984, R. Turnbow (1, FSCA) ; 5 km W Chetumal on Highway 186, 20 May 1987, D. A. Rider, E. G. Riley, and T. J. Riley (2, LSAM) ; 3 km N X-Thobil, 17 June 1990, J. Huether (2, UGCA) ; San Luis Potosí: 13 km N Ciudad Valles , 22 July 1988, R. Turnbow (1, FSCA) ; Tamaulipas: Tampico, 8 December [“8 12”], E. A. Schwarz (1, USNM) ; Veracruz: Córdoba , 9 May 1908, A. Fényes (2, USNM) ; same except 17 May 1908 (3, USNM) ; same except 22 May 1908 (1, USNM) ; same except April 1908, F. Knab (1, USNM) ; Yucatán: Mérida , 31 July 1964, P. J. Spangler (1, USNM) ; 0.3 km E Xcalacoop , 16 June 1990, M. C. Thomas (3, FSCA) ; km 250 on old Highway 180, 12 May 1997, R. Morris (1, LSAM) ; 16 km W Pisté on Highway 180, 19 May 1987, D. A. Rider, E. G. Riley, and T. J. Riley (1, LSAM) ; 22 km ENE Pisté , 15 June 1990, R. Turnbow (1, UGCA) ; 4 km SW Espita , 24 October 1991, R. Turnbow (1, UGCA) ; same except 22 km S Calotmul (1, UGCA) .

PANAMA: Chiriquí: Distrito Renacimiento, Santa Clara , 1,220 –1,280 m, 4 July 1976, E. G. Riley (1, EGRC) ; Hartmann’ s Finca, St. Clara , 15–18 June 1985, E. G. Riley & D. A. Rider (1, LSAM) ; same except 4 July 1997, R. Turnbow (1, FSCA) ; Panamá: 11–15 km N El Llano , 350 m, 13 May 1991, R. Turnbow (4, FSCA) ; same except 24 May 1991 (1, FSCA) ; same except mercury vapor and blacklight, 13 May 1991 (1, FSCA) ; El Llano-Carti Road , km 12, 9 July 1997, R. Turnbow (3, FSCA) ; 2.5 km W Ipeti , 11 May 1996, R. Turnbow (4, FSCA) ; 10.6 km E Cañita , 29 June 1997, R. Turnbow (4, FSCA) ; Chiriquicito , 16 May 1996, R. Turnbow (1, UGCA) .

USA: Alabama: Baldwin Co.: Bon Secour National Wildlife Refuge , 30°14′48″N, 87°49′45″W, 3 April 1994, blacklight in oak-pine forest, coll. D.M. Pollock (1, MEM) ; Bibb Co.: Bibb County Glades Preserve, 33°03′28″N, 87°02′21″W, 1 May 2003, blacklight in dolomite glade, coll. T.L. Schiefer, W.H. Cross Expedition (2, MEM) ; same except 33°03′26″N, 87°02′02″W, 4 June 2003 (1, MEM) ; Blount Co.: Mill Creek, just S off US Hwy. 31, 1 mi. SW Blount Springs, 20 May 1988, mercury vapor and blacklight, coll. C.B. and J.B. Barr (5, LSAM; 1, EMEC) ; Chilton Co.: 10 mi. N Clanton , 20 May 1990, coll. R. Turnbow (1, FSCA) ; Clay Co.: Talladega National Forest , 33°27′24″N, 85°52′16″W, 19 May 1998, beating trees and shrubs in mixed forest, coll. T.L. Schiefer, William H. Cross Expedition (1, MEM) ; Dale Co.: Fort Rucker Military Reservation , 17 May 2003, coll. R. Turnbow (1, FSCA) ; DeKalb Co.: DeSoto State Park , 34°29′56″N, 85°37′06″W, 13 May 2005, blacklight in mixed forest, coll. J.G. Hill, W.H. Cross Expedition (1, MEM) ; Escambia Co. : Brewton , 31°06′09″N, 87°04′08″W, 17 March – 12 April 2005, Lindgren funnel, coll. R.A. Wingard (1, MEM) ; Houston Co.: Hwy. 84, 6 mi. W Dothan, 12 May 1990, coll. R. Turnbow (1, FSCA) ; Mobile Co.: 2 mi. S Dees , 30°31′57″N, 88°20′52″W, 21 March – 11 April 2005, Lindgren funnel, coll. W.H. Harrison (1, MEM) ; Russell Co.: 6 km S Crawford , 8 April 1980, coll. W.E. Steiner (1, USNM) ; Wilcox Co.: 2 mi. NW Estelle , 31°59′05″N, 87°13′54″W, 25 February – 25 March 2005, Lindgren funnel, coll. G.M. Watson (2, MEM) ; Winston Co.: Bankhead National Forest, Corinth Recreation Area , 15 May 1988, mercury vapor and blacklight, coll. C.B. and J.B. Barr (1, LSAM) ; Delaware: New Castle Co.: Newark , 15 July 1901, lantern trap, coll. C.O. Houghton (1, USNM) ; District of Columbia: “D. C.”, Ulke Collection (1, CMNH) ; Florida: Alachua Co. : 29 March 1954, at light, coll. H.V. Weems, Jr. (1, FSCA) ; same except 27 August 1954 (1, FSCA) ; same except 19 April 1955, coll. R.A. Morse (1, FSCA) ; Gainesville , 16 September 1976, coll. J. Schuh (1, AMNH) ; Hwy. 236, 2 km W Hwy 241, 17 March 1999, coll. C.W. Mills, III (1, FSCA) ; Hwy 26, 0.2 miles W of Melrose, 17 April 1990, coll. R. Turnbow (5, FSCA) ; Bay Co.: 2 mi. N West Bay , 10 May 1987, coll. R. Turnbow (3, FSCA) ; Collier Co.: Big Cypress National Preserve, Monument Lake Campground, 9 April 1991, coll. R. Turnbow (1, FSCA) ; Highlands Co.: Archbold Biological Station, near Lake Placid , 6 June 1986, coll. J. Powell (1, EMEC) ; same except 15–16 September 1990, coll. R. Turnbow (2, FSCA) ; 2 mi. S Sebring , 15 April 1990, coll. R. Turnbow (15, FSCA) ; same except 16 April 1990 (5, FSCA) ; vicinity of Sebring Airport, 9 April 1994, coll. R. Turnbow (1, FSCA) ; same except coll. M.C. Thomas (8, FSCA); Jefferson Co.: Aucilla Wildlife Management Area, jct. Hwys. 59 and 98, 4 June 1988, coll. R. Turnbow (1, FSCA) ; Manatee Co.: Bradenton , “3-6” 1938, coll. W. Benedict (1, SEMC) ; Bradenton , 10 July 1972, blacklight, coll. M. Druckenbrod (2, USNM) ; Marion Co.: Lynn , 23 June 1995, coll. M.C. Thomas (1, FSCA) ; Silver River State Park , 27 July 1999, coll. C.W. Mills (1, FSCA) ; same except 05 August 1999, beating burned scrub (2, FSCA) ; Jct. Hwys. 40 and 314A, 17 May 1986, coll. R. Turnbow (2, FSCA) ; SE of Lake Kerr , 13 July 2008, coll. R. Turnbow (2, FSCA) ; Nassau Co.: 5 mi. N Hillard , 8 July 1972, blacklight, coll. M. Druckenbrod (1, USNM) ; Okaloosa Co.: 3.8 mi. E Crestview , 20 April 1991, coll. R. Turnbow (6, FSCA) ; 3 mi. WNW Holt , 11 April 1999, coll. R. Turnbow (1, UGCA) ; Santa Rosa Co.: 1.9 mi. WNW Holt , 11 April 1999, beating burned oaks, coll. P. Skelley (1, FSCA) ; same except no method, coll. R. Turnbow (1, FSCA); Blackwater River 2–3 mi. NW Holt, 22 April 2007, coll. R. Turnbow (18, FSCA) ; Seminole Co.: Econ Wilderness Area , “111-11-2000”, scrub oak / saw palmetto (unburned), Malaise trap, coll. Trevor Smith (2, FSCA) ; Wakulla Co. : 8 mi. N Crawfordville , 17 April 1976, coll. O’ Brien & Marshall (1, AMNH) ; 2.9 mi. E Newport , 12 May 1986, coll. R. Turnbow (1, FSCA) ; Georgia: Clarke Co.: Athens , 10–11 June 1973, blacklight trap, coll. R. Turnbow (1, FSCA) ; Charlton Co.: Okeefenokee National Wildlife Refuge, Camp Cornelia , 17–19 June 1988, coll. C.L. Smith (1, UGCA) ; Jeff Davis Co.: 6.8 mi. SW Hazlehurst , 29 June 1998, coll. R. Turnbow (5, FSCA) ; Lamar Co.: Milner , 26 June 1933, tanglefoot trap post, coll. T.L. Bissell (1, USNM) ; Monroe Co.: 3 mi. N Forsyth , 19 July 1972, blacklight, coll. M. Druckenbrod (1, USNM) ; Talbot Co.: Hwy. 36, 1 mi. NE jct. 208, 28 April 1990, coll. R. Turnbow (2, FSCA) ; no county data: Okefenokee Swamp , 3 April 1969, coll. T.E. Rogers (2, FSCA) ; Kentucky: Adair Co.: Columbia , 3 July 1961, M.H. Hatch (1, OSAC) ; Louisiana: Bossier Par.: Barksdale Air Force Base , 32°29′00″N, 93°35′29″W, 21 May 1996, blacklight in calcareous prairie, coll. T.L. Schiefer, William H. Cross Expedition (1, MEM) ; Calcasieu Par. : 6 mi. ESE Buhler, 30°18′44″N, 93°15′39″W, 20 May 1993, blacklight, mercury vapor and sun lamps in longleaf pine savannah, coll. T.L. Schiefer, William H. Cross Expedition (2, MEM) ; East Baton Rouge Par. : LSU campus, 16 April 1985, at light, coll. D.A. Rider (2, LSAM) ; same except 23 May 1985 (1, LSAM) ; same except 24 May 1985 (1, LSAM) ; same except 16 March 1986, mercury vapor and blacklight (1, LSAM) ; same except 29 March 1986 (1, LSAM) ; same except 31 March 1986 (1, LSAM) ; same except 26 April 1986 (1, LSAM) ; same except 02 July 1986 (1, LSAM) ; same except 22 March 1987 (1, LSAM) ; 1.2 mi. S Central on LA Hwy. 3034, 30 May 1978, at light, coll. C.B. Barr (1, LSAM) ; E of LA Hwy. 3035, 1.2 mi. S Central, 7 May 1985, mercury vapor and blacklight, coll. C.B. Barr (1, EMEC) ; Natchitoches Par.: Kisatchie National Forest, Kisatchie Bayou Campground , 14 June 1984, mercury vapor and blacklight, C.B. and J.B. Barr (1, LSAM) ; same except 20 March 2005, K.S. O’ Brien (1, LSAM) ; Saint Tammany Par.: Abita Creek Preserve, 30°31′25″N, 89°58′07″W, 18 April 2000, Malaise trap, coll. C. Carlton and D. Prowell (2, LSAM) ; Maryland: Prince George’ s Co.: Bladensburg , 5 June 1972, blacklight, coll. M. Druckenbrod (1, USNM) ; Takoma Park , 8 June 1970, blacklight, coll. M. Druckenbrod (1, USNM) ; 5 km SE Croom , 30 May 1986, coll. W. Steiner, S. Larcher and J. Swearingen (1, USNM) ; Cheverly , 38°56′N, 76°55′W, 19 June 1996, coll. W.E. Steiner and J.M. Swearingen (1, USNM) ; Mississippi: George Co.: Mixon Lakes , 30°50′28″N, 88°45′11″W, 9–10 April 1999, blacklight, mercury vapor and sunlamp, coll. J.A. MacGown (1, MEM) ; Lafayette Co.: Oxford , 23 July 1982, coll. Paul K. Lago (1, UMIC) ; same except 25 Apr 1989 (1, UMIC) ; same except 28 Apr 1989 (1, UMIC) ; Marion Co.: Lake Columbia, 21 Apr 1979, coll. Paul K. Lago (2, UMIC) ; Oktibbeha Co.: Adaton , 15 March 1982, coll. W.H. Cross (3, MEM) ; 3 mi. W Adaton , 33°29′00″N, 88°58′13″W, 14–16 March 1998, Lindgren funnel, coll. T.L. Schiefer (1, MEM) ; same except 17–23 March 1998 (1, MEM) ; New Jersey: Burlington Co.: 8 mi. S Chatsworth , 8 June 1997, coll. S.M. Clark (1, BYU) ; North Carolina: Columbus Co.: Lake Waccamaw , 11 May 1985, coll. W. Steiner and A. Gerberich (1, USNM) ; Craven Co.: 11 km W Havelock at Great Lake, Croatan National Forest , 27 May 1984, coll. W. Steiner, D. Bogar, A. Gerberich, and J. Boyd (2, USNM) ; Tennessee: Morgan Co.: Burrville , 12 May 1956, coll. B. Benesh (1, FSCA) .

Figures

Figs. 1–3. Olibroporus punctatus, habitus. 1) Dorsal view; 2) Lateral view; 3) Frontal view. Scale bars = 1.0 mm. Specimen from Piracicaba, São Paulo, Brazil (FMNH).

Figs. 4–5. Olibroporus punctatus, male genitalia. 4) Tegmen, ventral view; 5) Penis, ventral view. Scale bar = 0.5 mm. Specimen from Panamá Province, Panama (FSCA).

Figs. 6–8. Parasemus grouvellei, holotype. 6) Dorsal habitus; 7) Ventral habitus; 8) Labels. Scale bar = 1.0 mm.

Fig. 9. Map of the known distribution of Olibroporus punctatus.

Figs. 10–17. Scanning electron micrographs of characters in Olibroporus punctatus. 10) Right eye and antenna (scale bar = 100 μm); 11) Right elytron (scale bar = 1 mm); 12) Detail of elytral surface showing punctures and microsculpture (scale bar = 100 μm); 13) Elytral subbasal line showing crenulate cuticular projections (scale bar = 20 μm); 14) Prosternal process (scale bar = 100 μm); 15) Central part of mesoventrite showing “mesoventral plate” and metaventral process (scale bar = 100 μm); 16) Metaventrite showing area around left mesocoxal cavity (scale bar = 100 μm); 17) Metatarsus (scale bar = 100 μm). Specimen from 3.2 km S Sebring, Highlands Co., Florida (FSCA).

Figs. 24–26. Comparison of thoracic ventrites, ventral view. 24) Pycinus politus (lectotype, male); 25) Ochrodemus brevitarsis (holotype, female); 26) Radinus latus (holotype, female). Scale bar = 0.5 mm.