Laccotrephes, Stal, 1865

Polhemus, Dan A. & Polhemus, John T., 2013, Guide To The Aquatic Heteroptera Of Singapore And Peninsular Malaysia. X. Infraorder Nepomorpha-Famlies Belostomatidae And Nepidae, Raffles Bulletin of Zoology 61 (1), pp. 25-45 : 40

publication ID

https://doi.org/ 10.5281/zenodo.5351508

DOI

https://doi.org/10.5281/zenodo.5449493

persistent identifier

https://treatment.plazi.org/id/03C6879C-103F-7311-FF44-FDE4DDFAA9FA

treatment provided by

Tatiana

scientific name

Laccotrephes
status

 

KEY TO SPECIES OF LACCOTREPHES View in CoL OCCURRING IN SINGAPORE AND MALAYSIA

1. Very large species, body length (excluding siphon) exceeding 35 mm, usually 40 mm or greater; prosternal keel with an angular projection set back slightly from anterior margin when viewed laterally ( Fig. 31 View Figs ); male paramere with apex massive, hooked, acute ( Fig. 38 View Figs ) ........................................ L. pfeiferiae (Ferrari) View in CoL

– Moderate to small sized species with body lengths (excluding siphon) 32 mm or less.............................................................2

2. Moderate sized species, body length (excluding siphon) 30–32 mm; prosternal keel with a broad, rounded projection anteriorly when viewed laterally ( Fig. 32 View Figs ); male paramere with apex massive, hooked, apex blunt ( Fig. 37 View Figs )...................................... ............................................................. L. archipelagi (Ferrari) View in CoL

– Smaller species, body length (excluding siphon) less than 20 mm ...........................................................................................3

3. Prosternal keel flat when viewed laterally, lacking an angular anterior projection ( Fig. 33 View Figs ); length of respiratory siphon less than or equal to that of the body; male paramere with a broad, blunt process distally ( Fig. 36 View Figs ) ......... L. simulatus Montandon View in CoL

– Prosternal keel with an angular projection anteriorly when viewed laterally ( Fig. 34 View Figs ); length of respiratory siphon 1.5X that of the body; male paramere with a slender, acute process distally ( Fig. 35 View Figs ) ........ L. longicaudatus Nieser, Zettel & Chen View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Nepidae

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