Nysius pulchellus Stal
Creators: name: Malipatil, M. B.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Lygaeidae
Nysius
Nysius pulchellus

description: Nysius pulchellus Stål   
(Fig. 16)  
 Nysius pulchellus Stål, 1859: 244–245.   
 Type specimens examined: Lectotype male, “ Guam ”, “Kinb.”, “ Nysius pulchellus sp. n. C. Stål 1859 ”, 4 th segment of antennae missing, carded, dissected genitalia in vial; Paralectotype female, location same as lectotype, dissected, spermatheca mounted under cover slip on a resin card attached to same pin as specimen, specimen in parts glued on card, distal 2 segments of antennae and some legs missing; both specimens in Swedish Museum of Natural History, Stockholm.   
 Description: Measurements are of the lectotype male of N. pulchellus, followed by those of the paralectotype female within round brackets.   
Body length 3.60 (4.20); maximum width 1.10 (1.30).  
Coloration: Areas of head, pronotum, and scutellum mainly black. Femora ochraceous, faintly spotted with fuscous. Pronotum with posterior lateral margins and a large discoidal spot yellow; base of head with a small median yellow spot and adjoining spot on anterior margin of pronotum also yellow. Width of anterior margin equal to median length. Membrane with longitudinal fuscous patches. Corium with a submarginal fuscous line (streak) along outer margin. Median area of clavus and adjoining inner margin of corium broadly fuscous continuing on to membrane along middle of body.  
 Structure: Anterior costal margins of corium sparsely pilose. Length of head 0.76 (0.76); width across eyes 1.02 (1.01); interocular space 0.49 (0.52); interocellar space 0.30 (0.28); eye-ocellar space 0.11 (0.10); eye length 0.34 (0.34); eye width 0.26 (0.24). Bucculae narrowly elevated, gradually tapering posteriorly, tapering and ending well before base of head, shorter than first labial segment. Labium extending to hind coxae; length of segments: I 0.49 (0.55); II 0.50 (0.50); III 0.43 (0.47); IV 0.39 (0.40). Antennae with 4 th segment about as long as 3 rd segment; length of segments: I 0.30 (0.34); II 0.76 (0.78); III 0.64 (missing); IV missing (0.76).   
Thorax: Pronotum very coarsely punctae with a central impression, median length 0.76 (0.85); width at anterior margin 0.68 (0.75); width at posterior margin 1.21 (1.31).  
Scutellum length 0.64 (0.70); width 0.72 (0.75). Length of hemelytra 2.24 (damaged); length of corium 1.60 (damaged); claval commissure 0.30 (missing).  
 Abdomen: Scent gland scars and ventral trichobothria on sterna III and IV as in N. vinitor.   
 Male: Paramere with blade slightly more curved and basal shank more produced than in N. vinitor. Aedeagus as in N. vinitor.   
 Female: Spermatheca as in Fig. 16, other details of genitalia as in N. vinitor.   
 Distribution. Various islands in the Micronesia Group (North and South Mariana Islands, Caroline Atolls, Truk, Kusaie, Marcus and Marshall Islands).   
 Diagnosis. N. pulchellus generally resembles N. vinitor, but differs from it in having sparser and larger punctures on head, pronotum, and scutellum; anterior costal margins of corium sparsely pilose; and median area of clavus and adjoining inner margin of corium broadly fuscous continuing onto membrane along midline.
description: Published as part of Malipatil, M. B., 2010, Review and Revision of Nysius Dallas of Australia and South West Pacific (Hemiptera: Heteroptera: Orsillidae), pp. 29-44 in Zootaxa 2410 (1) on page 41, DOI: 10.11646/zootaxa.2410.1.2, http://zenodo.org/record/5307012