Ambrysus pulchellus

Reynoso-Velasco, Daniel & Sites, Robert W., 2018, Revision of the Ambrysus pulchellus Montandon species complex (Heteroptera: Nepomorpha: Naucoridae), Zootaxa 4442 (3), pp. 351-377: 353

publication ID

https://doi.org/10.11646/zootaxa.4442.3.1

publication LSID

lsid:zoobank.org:pub:0D4F249C-370E-4CF7-BFB6-27E619198924

persistent identifier

http://treatment.plazi.org/id/0392B40E-454A-FFB9-FF1F-3B90FA1AF923

treatment provided by

Plazi

scientific name

Ambrysus pulchellus
status

 

Key to the species of the Ambrysus pulchellus  species complex

1. Female subgenital plate ( SGP) triangular, posterior margin tapered to a rounded apex ( Fig. 6F View Figure ), lateral margins reflexed dorsally; posterior margin of laterosternite VI almost straight ( Fig. 6F View Figure ). Male accessory genitalic process ( AGP) capitate, widest apically ( Fig. 6B View Figure ); pseudoparameres straight mesally, with low and inconspicuous rounded apical lobe ( Fig. 6C View Figure ). Both sexes with scutellum with two reniform to ovate dark brown marks ( Fig. 6A View Figure )..................... Ambrysus vanduzeii Usinger 

1'. Female SGP not triangular, posterior margin broad ( Figs. 3F View Figure , 4F View Figure ) or with central concavity ( Fig. 1F View Figure ), lateral margins not reflexed; posterior margin of laterosternite VI almost straight ( Figs. 1F View Figure , 4F View Figure ) or strongly convex ( Fig. 3F View Figure ). Male AGP wider in distal half, but tapering apically ( Fig. 1B View Figure ) or widest preapically ( Fig. 4B View Figure ), or widest in basal 2/3 ( Fig. 3B View Figure ); pseudoparameres with medial convexity ( Figs. 1C View Figure , 3C View Figure , 4C View Figure ), tapering to a pointed ( Fig. 1C View Figure ) or narrowly rounded apical lobe ( Fig. 4C View Figure ), or without apical lobe ( Fig. 3C View Figure ). Both sexes with scutellum almost uniformly light brown ( Fig. 1A View Figure ), or uniformly colored ( Fig. 4A View Figure ), or with dendritic pattern ( Fig. 3A View Figure )........................................................................... 2

2. Female SGP with deep concavity on posterior margin, posterolateral corners slender and posteriorly produced ( Fig. 1F View Figure ). Male AGP uniformly wider in distal half and tapering apically ( Fig. 1B View Figure ); pseudoparameres tapering to a pointed apical lobe ( Fig. 1C View Figure ). Scutellum usually almost uniformly light brown or a heterogeneous pattern of brown tones ( Fig. 1A View Figure )...................................................................................................... A. buenoi Usinger 

2'. Female SGP without deep concavity on posterior margin, posterolateral corners only slightly produced posteriorly ( Figs. 3F View Figure , 4F View Figure ). Male AGP widest in basal 2/3 ( Fig. 3B View Figure ) or widest preapically ( Fig. 4B View Figure ); pseudoparameres tapering to a narrowly rounded apical lobe ( Fig. 4C View Figure ) or without an apical lobe ( Fig. 3C View Figure ). Scutellum almost uniformly dark brown ( Fig. 4A View Figure ) or with dark brown dendritic pattern ( Fig. 3A View Figure )............................................................................... 3

3. Scutellum almost uniformly dark brown ( Fig. 4A View Figure ). Pronotum surface glabrous, body glossy. Female SGP posterior margin rounded and with inconspicuous posterolateral corners ( Fig. 4F View Figure ); posterior margin of laterosternite VI straight ( Fig. 4F View Figure ). Male AGP widest preapically ( Fig. 4B View Figure ); pseudoparameres tapering to a narrowly rounded apical lobe ( Fig. 4C View Figure ).................................................................................................. A. pulchellus Montandon 

3'. Scutellum with dark brown dendritic pattern on medium brown background ( Fig. 3A View Figure ). Pronotum surface finely irregular, body not unusually glossy. Female SGP posterior margin with four conspicuous lobes ( Fig. 3F View Figure ); posterior margin of laterosternite VI convex ( Fig. 3F View Figure ). Male AGP widest in basal 2/3 ( Fig. 3B View Figure ); pseudoparameres without apparent apical lobe, posteromesal corners rounded ( Fig. 3C View Figure )............................................................ A. californicus Montandon 

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Naucoridae

Genus

Ambrysus