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Stenolemus novaki Horváth, 1888 (Hemiptera, Reduviidae) is recorded from mainland Portugal for the second time, following a recent photographic record. A map synthesizing the knowledge about the species distribution in the Iberian Peninsula is included.
ISSN: 1989-6581
Grosso-Silva & Ferreira (2020)
Stenolemus novaki Horváth, 1888
(Hemiptera, Reduviidae) in Portugal.
José Manuel Grosso-Silva 1 & Sónia Ferreira 2
1 Museu de História Natural e da Ciência da Universidade do Porto (MHNC-UP) / PRISC, Praça Gomes Teixeira, 4099-002 Porto,
Portugal. e-mail:
2 CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal.
Abstract: Stenolemus novaki Horváth, 1888 (Hemiptera, Reduviidae) is recorded from mainland Portugal for the second
time, following a recent photographic record. A map synthesizing the knowledge about the species distribution in the
Iberian Peninsula is included.
Key words: Hemiptera, Reduviidae, Emesinae, Stenolemus novaki, Iberian Peninsula.
Resumen: Stenolemus novaki Horváth, 1888 (Hemiptera, Reduviidae) en Portugal. Se cita Stenolemus novaki Horváth,
1888 (Hemiptera, Reduviidae) de Portugal continental por segunda vez, siguiendo un registro fotográfico reciente. Se
incluye un mapa que sintetiza el conocimiento sobre la distribución de la especie en la Península Ibérica.
Palabras clave: Hemiptera, Reduviidae, Emesinae, Stenolemus novaki, Península Ibérica.
Recibido: 21 de agosto de 2020 Publicado on-line: 27 de septiembre de 2020
Aceptado: 17 de septiembre de 2020
Stenolemus novaki Horváth, 1888 (Hemiptera, Reduviidae), the only representative of the genus
Stenolemus Signoret, 1858 in Europe, is an emesine assassin bug described from Croatia (“Dalmatia”)
and Italy (Lesina) by HORVÁTH (1888).
According to PUTSHKOV & MOULET (2009), who conducted a thorough compilation of the
available ecological data, Stenolemus novaki is probably a xerothermic and heliophilous species with a
preference for rocky areas.
Up to the present, the known European distribution of the species includes Bulgaria, Croatia,
France, Greece, Italy, Macedonia, and Spain, while outside Europe it has been recorded from the Canary
Islands, Egypt, Israel, Saudi Arabia, Sudan, and Turkey (WYGODZINSKY, 1966; PUTSHKOV &
PUTSHKOV, 1996; PUTSHKOV & MOULET, 2009; SIMOV et al., 2017).
The current known Iberian distribution includes the Spanish provinces of Barcelona (RIBES,
1961 and several additional records, cf. PUTSHKOV & MOULET, 2009) and Girona, specifically from the
Medes Islands, from where ESPAÑOL (1984) tentatively identified several nymphs. In Portugal, the
only available information pertains to a very recent record from the district of Setúbal [specific
location: Setúbal (municipality): Castanhos (38.5231º N, -8.9997º W; 29SNC0063), Parque Natural da
Arrábida], based on pictures taken by Pedro Silva on 13/11/2019 and housed in the web platform
Biodiversity4All ( and GBIF (UEDA, 2020).
In this contribution we record Stenolemus novaki from south-western Portugal, collected within
the scope of the InBIO Barcoding Initiative, confirming its presence and extending southwards its
known distribution in the country as shown in Map 1, which marks the Portuguese districts where the
species was recorded and summarizes its Spanish (province level) distribution just based on literature
Grosso-Silva & Ferreira (2020): Stenolemus novaki Horváth, 1888 (Hemiptera, Reduviidae) in Portugal.
compilation. In the material examined section, as in the above-mentioned record from Setúbal, the
dates presented are in the Day/Month/Year format and the coordinates are in the Military Grid
Reference System (MGRS).
Material examined
PORTUGAL: Beja district: Odemira municipality: Vale de Gomes, 1,7 km WSW of Algoceira
(37,6116º N, 8,7134º W; 29SNB2562, 4 m above sea level), Parque Natural do Sudoeste Alentejano e
Costa Vicentina, 27/05/2019, 1 , Sónia Ferreira leg., InBIO Barcoding Initiative reference
collection (INV08667) (Vairão, Portugal).
The known distribution range of Stenolemus novaki Horváth, 1888 in the Iberian Peninsula was
remarkably extended with the aforementioned record obtained by Pedro Silva and is further increased
with the new record presented herein (Map 1).
As in the case of Lachnaia (Lachnaia) variolosa (Linnaeus, 1767), recently recorded from Portugal
for the first time with a significant westwards range expansion (GROSSO-SILVA et al., 2020),
Stenolemus novaki is probably present in suitable areas in a number of Spanish provinces located
between Barcelona and the Portuguese south-western coast, its small size and elusive behaviour possibly
accounting for the lack of records in such an extensive area of the Iberian Peninsula.
InBIO Barcoding Initiative is funded by the European Union’s Horizon 2020 Research and
Innovation programme under grant agreement No 668981 and by the project PORBIOTA Portuguese
E-Infrastructure for Information and Research on Biodiversity (POCI-01-0145-FEDER-022127),
supported by Operational Thematic Program for Competitiveness and Internationalization (POCI), under
the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund
ESPAÑOL, F. 1984. Els insectes de les Illes Medes, pp. 231-244. In: ROS, J.; OLIVELLA, I. & GILI, J.
M. (eds.). Els Sistemes naturals de les illes Medes. Arxius de la Secció de Ciències, LXXIII. Institut
d’Estudis Catalans, Barcelona. 826 pp.
GARCIA-PEREIRA, P. 2020. Lachnaia (Lachnaia) variolosa (Linnaeus, 1767) (Coleoptera, Chrysomelidae),
new species for Portugal. Arquivos Entomolóxicos, 22: 9-10.
HORVÁTH, G. 1888. Matériaux pour servir à l’étude des Hemiptères de la faune paléarctique. Revue
d’Entomologie, VII: 168-189.
PUTSHKOV, P.V. & MOULET, P. 2009. Hémiptères Reduviidae dEurope Occidentale. Faune de France,
92. France et régions limitrophes. Fédération Française des Sociétés de Sciences Naturelles, Paris. 668
pp. + 24 pranchas.
PUTSHKOV, P.V. & PUTSHKOV, V.G. 1996. Family Reduviidae Latreille, 1807 - assassin-bugs, pp. 148-
265. In: AUKEMA, B. & RIEGER, C. (eds.). Catalogue of the Heteroptera of the Palaearctic Region. Vol.
2. Cimicomorpha I. The Netherlands Entomological Society, Amsterdam. 361 pp.
RIBES, J. 1961. I. Contribución al estudio de los Reduviidae de Cataluña. Miscelánea Zoológica, 1(4):
SIMOV, N.; GRADINAROV, D. & DAVRANOGLOU, L.-R. 2017. Three new assassin bug records
(Hemiptera: Heteroptera: Reduviidae) for the Balkan Peninsula. Ecologica Montenegrina, 13: 25-29.
UEDA, K. 2020. iNaturalist Research-grade Observations. Occurrence dataset accessed via on 2020-08-19.
WYGODZINSKY, P.W. 1966. A monograph of the Emesinae (Reduviidae, Hemiptera). Bulletin of the
American Museum of Natural History, 133: 1-616.
Map 1.- Iberian distribution of Stenolemus novaki Horváth, 1888, with the previously known Portuguese districts and
Spanish provinces (in grey), the new Portuguese districts (in blue), and the MGRS 10x10 km squares of the collecting
sites in Portugal (new sites in orange, previous sites in green).
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Matériaux pour servir à l'étude des Hemiptères de la faune paléarctique
  • G Horváth
HORVÁTH, G. 1888. Matériaux pour servir à l'étude des Hemiptères de la faune paléarctique. Revue d'Entomologie, VII: 168-189.
Faune de France, 92. France et régions limitrophes. Fédération Française des Sociétés de Sciences Naturelles
  • P V Putshkov
  • P Moulet
PUTSHKOV, P.V. & MOULET, P. 2009. Hémiptères Reduviidae d'Europe Occidentale. Faune de France, 92. France et régions limitrophes. Fédération Française des Sociétés de Sciences Naturelles, Paris. 668 pp. + 24 pranchas.
Family Reduviidae Latreille, 1807 -assassin-bugs
  • P V Putshkov
  • V G Putshkov
PUTSHKOV, P.V. & PUTSHKOV, V.G. 1996. Family Reduviidae Latreille, 1807 -assassin-bugs, pp. 148-265. In: AUKEMA, B. & RIEGER, C. (eds.). Catalogue of the Heteroptera of the Palaearctic Region. Vol.
The Netherlands Entomological Society
  • I Cimicomorpha
Cimicomorpha I. The Netherlands Entomological Society, Amsterdam. 361 pp.