Elampus gayi Spinola, 1851

Elampus gayi Spinola, 1851

( Figs 2E–H View FIGURE 2 )

Elampus gayi Spinola 1851: 413 . Lectotype ♀, designated by Rosa & Xu 2015: 50 View Cited Treatment . CHILE, De Santa Rosa y de la Ligua, D. Gay (MRSN: examined by photos).

Elampus gayi Spinola ; Dahlbom 1845: 47; Huber & Pengelly 1978: 93; 1980: 49; Bohart & Kimsey 1991: 168; Rosa & Xu 2015: 50 View Cited Treatment ; Lucena & Gomes 2016: 556 View Cited Treatment .

Ellampus (!) ( Notozus) gayi ; Mocsáry 1889: 79; Ducke 1913: 13.

Diagnosis. This species closely resembles E. aequinoctialis (Ducke) . Elampus gayi is comparatively longer than E. aequinoctialis ( 4.4 mm in the former vs. 3.6 mm in the latter), and has denser sculpturing on vertex, pronotum, scutum, and disc of T2–T3 ( Fig. 2E–H View FIGURE 2 ).

Material examined. Lectotype ♀. CHILE: De Santa Rosa y de la Ligua, D. Gay ( MRSN) . Paralectotype female, CHILE, Gay ( MNHN) . ARGENTINA, Catamarca: Santa María , i.1983, Peña ( AMNH: 1♀) . La Pampa: General Pico , 07.xii.1940, Parker H. L. ( USNM: 2♀) . Mendoza: Santa Rosa , 1908, Jensen A. C. ( MNHN: 1♀) . San Juan: Zonda , 28.xi.1993, Michelette E. R. F. ( RPSP: 1♂) . Same data as preceding, except: 17.xi.1993 ( RPSP: 2♂) ; 20.i.1994 ( RPSP: 1♀) ; 06.ii.1994 ( RPSP: 8♂) . Río Negro: Lamarque , Fritz P. ( AMNH: 1♀ 1♂) . Luis Beltrán , xi.1991, Fritz P. ( AMNH: 1♂) . Choele Choel , xi.1991, Fritz P. ( AMNH: 5♂) . CHILE, Biobío: Concepción , 13.xii.1908, Herbst P. ( AMNH: 2♂) . Coquimbo: La Higuera, Llanos de Los Choros , 15.x.1971, Rozen & Peña ( AMNH: 2♀ 1♂) . Maule: Curicó, Río Teno , 25–28.xi.1981, Luis & Peña ( AMNH: 1♂) . Santiago: Tiltil, Cuesta la Dormida , 01.xi.1969, Rozen & Peña ( AMNH: 1♀) .

Distribution. Argentina ( Catamarca, La Pampa, Mendoza, San Juan, Río Negro); Chile ( Biobío, Coquimbo, Maule, Valparaiso, Santiago) ( Fig. 3 View FIGURE 3 ). See comments under E. aequinoctialis .

Host. Unknown.

Taxonomic notes and key to species of Elampus . The genus Elampus is now represented in South America by four valid species: E. aequinoctialis Ducke , E. gayi Spinola , E. macuxi Lucena , and E. pulchricollis Ducke. By summarizing the preceding remarks, amendments are needed in the previous key of South America species of Elampus ( Lucena & Gomes 2016) : couplets 2–3 are herein modified to include Elampus aequinoctialis .

1. Marginal terga without basolateral translucent border; metanotum rectangular posteriorly; dorsal surface of mesosoma and apical margin of mandibles with distinct reddish highlights; apical margin of T3 rounded; tarsal claws with single subsidiary tooth............................................................................ Elampus macuxi Lucena

- Marginal terga with narrow translucent rim or with broad membranous whitish border along basolateral margins; metanotum truncated or pointed posteriorly; dorsal surface of mesosoma and mandibles without reddish highlights; distal margin of T3 with medial notch; tarsal claws with two subsidiary teeth..................................................... 2

2. Marginal terga with broad membranous whitish rim; integument of head, pronotum and scutum dull and impunctate; scapal basin transversely cross-ridged; integument of T3 apical process smooth.................. Elampus pulchricollis Ducke

- Marginal terga with narrow translucent border; integument of head, pronotum, scutum, and metasoma polished and punctate; scapal basin smooth, without cross-ridge or wrinkles; integument of T3 apical process wrinkled...................... 3

3. Vertex, pronotum, scutum, and discs of T2–T3 sparsely sculptured, minimally 1.5–2× PD apart ( Fig. 2A–D View FIGURE 2 ), usually wider; small-sized, body size shorter than 4 mm [ Brazil]................................... Elampus aequinoctialis Ducke

- Vertex, pronotum, scutum, and discs of T2–T3 densely sculptured, usually no more than 1× PD apart ( Fig. 2E–H View FIGURE 2 ); moderatesized, body size longer than 4.2 mm [western Argentina and Chile]............................ Elampus gayi Spinola