Eleusis rufula SHARP, 1887

Irmler, Ulrich, 2017, The Neotropical species of the genus Eleusis LAPORTE, 1835 with description of the new genus Eleusima (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 67 (2), pp. 275-318 : 300-301

publication ID

https://doi.org/ 10.21248/contrib.entomol.67.2.275-318

publication LSID

lsid:zoobank.org:pub:98BC4B71-EE31-4BA0-855A-AAC48C955B38

persistent identifier

https://treatment.plazi.org/id/03F6C753-FFFC-FFB9-FF2B-DCE6FB06FD24

treatment provided by

Felipe

scientific name

Eleusis rufula SHARP, 1887
status

 

Eleusis rufula SHARP, 1887

Figs 22 View Fig A-C,31B

Eleusis rufula SHARP, 1887: 729

Type material examined: male, Lectotype: Panama: Bugaba, leg. Champion ( BMNH); Syntype : female, with same labels as lectotype ( BMNH) . Two syntypes are deposited in the BMNH. Although the female syntype was additionally labelled as type, I selected the male as lectotype.

Additional material examined: Nicaragua: Rio San Juan Dept., 60 km SE San Carlos, Refugio Bartola (10°5840'N, 84°20.30'W), 100 m elev., on bark, downed log, female, 25.5.2002, leg. R. Brooks, Z. Falin, S. Chatzimanolis #NIC1 BFC02068 View Materials ( KNHM) ; Costa Rica: Heredia, La Selva Biol. Station nr. Puerto Viejo de Sarapiqui , 26 males, 20 females 18.2.1985, leg. L. Herman # 2117, #2112, #2118 (38 AMNH, 8 UIC) ; 10 males, 22 females, same location, same collector and date, but under log bark #2108 (26 AMNH, 6 UIC) ; F. La Selva , 3 km S Pto. Viejo (10°26'N, 84°01'W), male, 29.7.1976, leg. H.A. Hespenheide ( KNHM) GoogleMaps ; same location, but 80 m elev., flight intercept trap, female, 18.- 20.6.2001, leg. S. Chatzimanolis CR1 C01057 View Materials ( KNHM) GoogleMaps ; Sto. Domingo del Heredia, INBio Cafetal , 1100 m elev., flight intercept trap, female, 25.- 28.6.1997, leg. S. & J. Peck #CR1 P97027 View Materials ( KNHM) ; Puntarenas, Las Alturas Field Station , 20 km S San Vito de Hava, 1400 m elev., malaise trap, 20.- 24.5.1991, leg. DeVries ( AMNH) ; Las Alturas Biol. Sta. (8°56.17'N, 82°50.01'W), 1660 m elev., under bark, 6 males, 4 females, 1.6., 2.6.2004, leg. J.S. Ashe, Z. Falin, I. Hinojosa #CR1 AFH04086 View Materials , 071 (8 KNHM, 2 UIC) GoogleMaps ; R.F. Golfo Dulce, 24 km W Piedras Blancas, 200 m elev., malaise trap, 1 male, 2 females, Oct. , Dec. 1990, leg. P. Hanson ( KNHM) ; Las Cruces Biol Sta. (8°47.14'N, 82°57.58'W), 1330 m elv., pyrethrum fogging fresh log, 1 male, 2 females, 30.5.2004, leg. J.S. Ashe, Z. Falin, I. Hinojosa #CR1 AFH04050 View Materials ( KNHM) GoogleMaps ; Corcovado National Park, Sirena Stn., upper Ollas Trail (8°29.7'N, 83°34.39'W), 140 m elev., flight intercept trap, 1 male, 1 female, 24.- 28.6.2000, leg. Z.H. Falin CR1 ABF00036 View Materials ( KNHM) GoogleMaps ; Rincon de Osa (8°41.14'N, 83°31.11'W), rain forest, stream side, 40 m elev., flight intercept trap, male, 23.- 26.6.2001, leg. S. & J. Peck #CR1 P01007 View Materials ( KNHM) GoogleMaps ; Guanacaste, Patilla Biological Station (10°59.22'N, 85°25.33'W), 610 m elev., on and under bark, female, 14.7.2000, leg. J. Ashe, R. Brooks, Z. Falin #CRI1 ABF00128 View Materials ( KNHM) GoogleMaps ; Cacao Biological Station (10°55.38'N, 85°27.7'W), 1050 m elev., under bark, female, 11.7.2000, leg. J. Ashe, R. Brooks, Z. Falin #CRI1 ABF00098 View Materials ( KNHM) GoogleMaps ; Alajuela, E.B. San Ramon , 27 km N & 8 km W San Ramon (10°13.4'N, 84°35.46'W), 810 m elev., under bark, 2 males, 4 females, 7.7.2000, leg. J. Ashe, R. Brooks, Z.Falin #CRI1 ABF00072 View Materials (5 KNHM, 1 UIC) GoogleMaps ; Peñas Blancas , 850 m elev., under bark, 1 male, 1 female, 18.5.1989, leg. J. Ashe, R. Brooks, R. Leschen #255 ( KNHM) ; same location, same collectors, barking, 19.5.1989, #294 ; Limon, 2 km W Puerto Viejo , 20 m elev., rotting cocoa pods, 15.5.1993, leg. J.S. & A.K. Ashe ( KNHM) ; Panama. Santa Fe, Piedra Alta (8°52'N, 81°13'W), dead wood, 17 females, 12 males, 26.4.2014, leg. T. Struyve (15 TSC, 14 UIC) GoogleMaps ; Darién Prov., Mogué (8°247'N, 78°156'), litter layer, 2 females, 10.8.2014, leg. T. Struyve (1 TSC, 1 UIC) ; Cana Biological Station, Serrania de Pirre (7°45.28'N, 77°41.6'W), 1250 m elev., under bark, 2 males, 5 females, 4.6., 5.6.1996, leg. J. Ashe, R. Brooks #PAN1AB96041 (6 KNHM, 1 UIC) GoogleMaps ; Coclé, 7.2 km Ne El Copé (8°42'N, 80°35'W), 730 m elev., female, 20.6.1995, leg. J. Ashe & R. Brooks #254 ( KNHM) GoogleMaps ; Coclé Prov., La Mesa, N El Valle, 800 m elev., 1 male, 1 female, 23.8.1995, leg. A.R. Gillogly ( KNHM) ; Veraguas, Cerro Tule , 4 km W of Santa Fé, 850 m elev., 2 males, 30.7.1996, leg. A.R. Gillogly ( KNHM) ; French Guiana: Eaux Claires , 3.5 mi N Saül (3°38-40'N, 53°13- 14'W), 155-260 m elev., under bark of log, 5.- 13.10.1995, leg. L. Herman #2836 ( AMNH) ; Bolivia: Yuracaris , male ( IRSNB) .

Diagnosis: The species resembles E. bicolor and E. struyvei in shape and colouration. On average, it is smaller than these two species, in particular compared to E. struyvei . It can be separated from these species by the light reddish colour of the pronotum and the yellow abdomen. Colouration of the abdomen of E. bicolor , however, is varying in the teneral stages. Therefore, black last abdominal segments can be also absent in E. bicolor . The microsculpture of the head of E. rufula is denser than in E. bicolor . It resembles that of E. struyvei . Thus, the surface of the head in E. bicolor is shinier than in E. rufula . The aedeagus is extremely similar to that of E. bicolor , but the number of sensillae in E. bicolor seems to be higher than in E. rufula .

Description: Length: 3.7 – 4.7 mm. Colouration: head dark brown to blackish; pronotum red; elytra orange-red with posterior half blackish; abdomen red to orange with central stripe dark brownish; legs dark yellow; antennae brown.

Head: 0.68 mm long, 0.63 mm wide; eyes not prominent; temples parallel; approximately twice as long as eyes; preocular sides parallel; anterior margin of clypeus narrowed to prominent centre; central part triangularly emarginate; supraocular groove reaching from anterior edge of eyes to posterior edge of temples; punctation irregularly dense and deep; clypeus and posterior vertex finer and sparser punctate than interocular area; setiferous puncture at each end of supraocular groove; another pair of setiferous punctures on each side of central clypeal prominence; elongate microsculpture dense; longitudinally striate; surface moderately matt.

Antennae as long as head and half of pronotum combined; first antennomere thicker and longer than following antennomeres; second antennomere half as long as first antennomere; third antennomere slightly longer than second; following antennomeres decreasing in length and increasing in width; fourth antennomere slightly longer than wide; tenth antennomere slightly wider than long; antennomeres four to eleven pubescent and with long apical setae.

Pronotum: 0.61 mm long, 0.63 mm wide; sides of anterior half parallel; sides of posterior half strongly narrowed to posterior angles; posterior margin less than half as wide as anterior margin; punctation as dense as on posterior vertex; short groove at anterior angles; pair of short grooves in posterior half; margined by ridges; on average, interstices between punctures three to four times as wide as diameter of punctures; setiferous punctures in groove at anterior angles, at anterior margin on each side of middle close to anterior angles, and along lateral margin; weak elongate microsculpture; longitudinally striate on disc; close to lateral margin, partly diagonally striate; surface shinier than head.

Elytra: 0.77 mm long, 0.74 mm wide, sides slightly divergent to posterior angles; humeral angles and posterior angles obtusely angled; weak punctation as dense as on pronotum; weak elongate microsculpture longitudinally striate; on each side of suture, one setiferous puncture in central position; few more setiferous punctures along lateral margin; weak elongate microsculpture longitudinally striate; surface shiny.

Abdomen impunctate except few setiferous punctures in transverse row on each abdominal segment; weak elongate microsculpture transversely striate, surface shiny.

Aedeagus in lateral aspect broadly curved; apex broadly rounded; at apex with small sclerotised plate; large sclerotised plate of central lobe with few sensillae at base; in ventral aspect, central lobe broadly parallel; with pincerlike sclerotised structure at apex; paramere approximately as long as central lobe; at apex with wide transparent lobe; several sensillae on transparent lobe.

KNHM

The Educational Science Museum [=Kuwait Natural History Museum?]

AMNH

American Museum of Natural History

TSC

Tarleton State University, Tarleton State Collection

IRSNB

Institut Royal des Sciences Naturelles de Belgique

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Eleusis

Loc

Eleusis rufula SHARP, 1887

Irmler, Ulrich 2017
2017
Loc

Eleusis rufula

SHARP 1887: 729
1887