Montina testacea ( Stål, 1859 )

Mejía-Soto, Andrés, Forero, Dimitri & Wolff, Marta, 2022, Taxonomic revision of Montina (Hemiptera: Heteroptera: Reduviidae) from Colombia with description of three new species, Acta Entomologica Musei Nationalis Pragae 62 (2), pp. 325-381 : 355-357

publication ID 10.37520/aemnp.2022.019

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Montina testacea ( Stål, 1859 )


Montina testacea ( Stål, 1859) View in CoL

( Figs 21 View Fig ; 22 View Fig ; 25E View Fig ; 27E View Fig ; 29E View Fig ; 39 View Fig ; 42 View Fig )

Ploeogaster testaceus Stål, 1859: 197 (new species).

Aristippus testaceus: STÂL (1868) : 99 (new generic placement, key).

Montina (Aristippus) testacea: STÂL (1872) View in CoL : 74 (checklist, new generic placement, Aristippus as subgenus).

Montina testacea: LETHIERRY & SEVERIN (1896) View in CoL : 195 (catalog); MALDO- NADO (1990): 235 (catalog).

Type locality. Brazil, Bahia.

Type material. LECTOTYPE (here designated): [ BRAZIL]: 1 ♀, (green label) “ Bahia Tello. Fr.” / “ Ploeogaster testaceus Stål ” / (red label) Typus / 2564 / Lectotype Ploeogaster testaceus Stål, 1859 Desig. by A. MejíaSoto & D. Forero ( ZMHB). PARALECTOTYPE. [ SURINAM?]: 1♀, (green label) “Surin. Volxem” / “* Ploeogaster testaceus Stål ♀ ” / (red label) Paratypus / “2564” ( ZMHB).

Other specimens examined. COLOMBIA: META: 1 J, La Macarena; 25 Mar 1997; L. Solórzano leg.; UNAB No. 4858 ( UNAB); 2 ♀♀, Villavicencio,vía Puerto Colombia, Finca El Naranjal; 4°2′91″N, 73°36′15″W; 150 m; Dic 1997; J. G. Molano leg.; ICN 027674, ICN: 027670 ( ICN); 1 ♀, Llanos orientales; Jun 1950; Medem leg.; ICN 029951 ( ICN); 1 ♀, Puerto López; 300 m; 18 Mar 1993; D. Díaz leg.; [colecta] manual; MPUJ _ENT0061389 ( MPUJ); 1 ♀, Puerto López, Remolinos, Cafam llanos [Puerto López,Remolinos,Centro Cafam Llanos, ~ 55km W Puerto Gaitán]; [04.2751°N 72.5408°W]; 140 m; 20 Abr 2011; Coral et al. leg.; [colecta] manual; MPUJ _ENT0058578 ( MPUJ); 1 J, Puerto Gaitán, Hacienda Yamato; 4°31′29.8″N, 71°48′29.8″W; 105 m; 2–9 Nov 1996; D. Forero leg.; MPUJ _ENT0058572 ( MPUJ).

Diagnosis. Total length, female 24.0– 24.5 mm (n = 3), male 19.4–20.1 mm (n = 2). General coloration red to dark red; membrane translucent yellow ( Figs 21B, D View Fig ); scutellum apically pale red; tubercle of anterior pronotal lobe slightly curved anteriad, slender, subcylindrical and apically obtuse ( Fig. 21E View Fig ), posterior pronotal lobe elevation of carina very prominent and truncated ( Fig. 21E View Fig ); posterolateral process acute ( Figs 21B, D View Fig ); margin of connexivum nearly straight ( Figs 21A, C View Fig ), connexivum with dorsal laterotergites black with lateral margin pale yellow ( Figs 21B, D View Fig ), ventral laterotergites uniformly colored ( Figs 21A, C View Fig ); abdominal sternites with an area of erect black setae near the posterior margin of segments 3–7, surrounding setae decumbent and golden which in males can be of silver coloration ( Figs 21F, G View Fig ).

Differential diagnosis. Montina testacea is similar to M. confusa because of the overall red coloration ( Figs 7B, D View Fig ; 21B, D View Fig ), but it can be separated from it because in M. testacea the scutellum is elongated apically, the tubercles of the anterior lobe of the pronotum are subcylindrical ( Fig. 21E View Fig ), the ventral laterotergites are uniformly colored ( Figs 21A, C, F View Fig ), and the abdominal sternites have a conspicuous cluster of black erect setae ( Figs 21F, G View Fig ). On the other hand, in M. confusa the scutellum is apically rounded ( Fig. 7F View Fig ), the tubercles of the anterior lobe of the pronotum have a preapical constriction and markedly globose apically ( Fig. 7E View Fig ), the ventral laterotergites 3–5 have a black band on the lateral half contrasting with the pale yellow on the medial half ( Figs 7A, C View Fig ), and the abdominal sternites have uniform golden decumbent setae ( Figs 7A, C View Fig ). In addition, in M. testacea the medial process of the pygophore is nearly parallel ( Fig. 22C View Fig ), whereas in M. confusa it is basally much wider than the apex ( Figs 8A, C View Fig ).

Distribution. Brazil ( STÂL 1859), Suriname, and Colombia (Meta), with records from 100–300 m ( Fig. 42 View Fig ).

Remark on types. STÂL (1859) described Ploeogaster testaceus from an undefined number of female specimens from “Brasilia”, and he did not indicate where the depository was of these specimens. At ZMHB we found three specimens that are under “ testaceus ” and are labelled as types. We are selecting one female as the lectotype because it fits its description, and it bears a label of “Bahia” ( Fig. 39 View Fig ). One of the other specimens is designated as a paralectotype, because it fits the description, although it has a label from “Surin.” (probably Surinam). The third specimen, though, despite having a similar reddish coloration and a label indicating that this is a “ testaceus ” specimen, does not match certain diagnostic characters for the species, such as the setal area on the abdominal sternites, and more importantly the coloration of the ventral laterotergites. In this specimen the coloration of the dorsal laterotergites is as in M. distincta , where the lateral half of each connexival segment is pale yellow and the medial half is black. Furthermore, this specimen bears a label from “ Para ” which is the same locality as the lectotype of M. distincta . Therefore, we are assigning this specimen to the type series of M. distincta (see above).


Universidad Nacional, Facultad de Agronomia


Instituto de Ciencias Naturales, Museo de Historia Natural














Montina testacea ( Stål, 1859 )

Mejía-Soto, Andrés, Forero, Dimitri & Wolff, Marta 2022

Montina testacea: LETHIERRY & SEVERIN (1896)

LETHIERRY L. F. & SEVERIN G. 1896: 195

Montina (Aristippus) testacea: STÂL (1872)

STAL C. 1872: 74

Aristippus testaceus: STÂL (1868)

STAL C. 1868: 99

Ploeogaster testaceus Stål, 1859: 197

STAL C. 1859: 197
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