Hesus subarmatus STÅL 1873

Heiss, E., 2009, Review of the Neotropical genus Hesus STÅL 1862 with description of a new species (Heteroptera, Aradidae), Linzer biologische Beiträge 41 (1), pp. 343-357 : 349-350

Hesus subarmatus STÅL 1873 ( Fig. 5, 13, 14 , 23, 28 ; photo 7)

Described from Surinam. As it is unclear from the description if it was based on a single or more females, a pinned specimen with following labels: «Surin.» / «Thorey» / « subarmatus Stål » / «typus» (may have been attached later by a curator?) in the collection of the Naturhistoriska Rijksmuseet Stockholm has therefore been designated as lectotype and labelled accordingly, when studying the collection years ago. This designation was not yet published and is done herewith.

Habitus, colouration of body, antennae, and legs as well as the structures on anterior pronotal lobe of Hesus subarmatus are very close to those of H. mexicanus (photo 7). Therefore it is necessary to reexamine specimens identified as H. subarmatus in collections to verify their true identity. As the usually reliable distinctive character – the presence of two (1+1) converging median ridges on posterior pronotal disk--are sometimes weakly developed, male specimens can be identified by their genitalic structures; however, single females may not be clearly assigned to one of these taxa.

Spiracles II-V ventral, VI lateral and visible from above, VII dorsolateral, VIII terminal. Terminal segments as fig. 13, 14. Pygophore dorsally more sloping posteriorly, with larger tongue-like dorsal sclerite (fig. 28); parameres wider fig. 23.

M e a s u r e m e n t s Length 33 8.9-10.0mm, ♀♀ 10.2-10.4mm ; ratio length of antennae / width of head 2.85-3.1; ratio antennal segment I / segment II 1.84-2.0; head longer, ratio length / width 1.45-1.52. M a t e r i a l e x a m i n e d Surinam: 13 Paramaribo 12 XII 1960, 1♀ 8 VI 1963 P.H. v .

Doesburg lg. (CEHI). Brazil: 33♀♀ Rondonia, 62 km W Arquimenes nr. Faz. Rancho Grande 6-

15 XII 1990 D.A. Rider & J.E. Eger leg., 5-17 X 1993 and 8-20 XI 1994 J.E. Eger & L.B. & C.W.

O’Brien lg. ( CEHI) ; 1♀ from same locality, 8-20 XI 1994 black light trap, J.E. Eger lg. ( CEHI) ;

13 Chapada (CEHI); 4331 ♀ Macé , 70 km N Rio de Janeiro 15 X-10 XI 1999 W. Gosser lg .

(CEHI). Ecuador: 4332 ♀♀ Napo, Coca I 1982 on Elaeis guinensis, G. Onore lg. ( CGOQ) ; 13

Napo, Limoncocha 23 I 1988 X. Vitteri lg. ( CGOQ) ; 1♀ Napo, Lago Agrio XII 1980 M .

Ponisacho lg. (CGOQ); 33♀♀ San Antonio 0°17S, 76°39W 4 XII 2004, Shushifindi

0°11S, 76°38W 200-400m, 4-8 XII 2004 and Napo, Las Palmas 0°38S, 77.03W 200-400m, 3 XII

2004 P. Banař lg. ( CEHI) ; 33♀♀ Napo, 70km SW Coca , Loreto 300m, 4-10 III 2003 M. Halada

lg. (CEHI); 33♀♀ Sucumbios, Tarapoa 23 IX 1997 and Lago Agrio 25 XI 1997 M. Šebela lg .

(CEHI); Bolivia: 131♀ Cochabamba, Yungas de Palmar , A. Martinez lg. ex coll. Kormilev

(CEHI); 1♀ Yungas de La Paz 1000m, H. Rolle lg. ( CEHI) ; 1♀ Region Chapare 400m, Zischka

lg. (CEHI); 13 Cochabamba prov., Villa Tunari, Hotel los Tucanes 16°58S, 65°23W 320m, 5 IX

2000 M. Hauser lg. ( CEHI). Peru: 33♀♀ Iquitos, Amazonas 11 II 1977 E. Heiss lg. ( CEHI) ; 1♀

Avispas 1-15 X 1962 L.E. Peña lg. ( CEHI) ; 132♀♀ Marcapata ex. coll. Staudinger & Bang Haas

(CEHI).

D i s t r i b u t i o n: Recorded from Surinam, Brazil, to Peru.

Figures

Fig. 5-18: Hesus spp. 5-6 head and pronotum. (5) H. subarmatus; (6) H. mexicanus; (7-18) terminal segments of male, dorsal and lateral view. (7-8) H. humeralis nov.sp.; (9-10) H. cordatus; (11- 12) H. acuminatus; (13-14) H. subarmatus; (15-16) H. flaviventris; (17-18) H. mexicanus. Scale 1 mm.

Fig. 19-29: Hesus spp. 19, 22-26 right paramere, dorsal face; (19-20) ditto ventral face; (27-29) pygophore lateral view. (19-21, 27) H. humeralis nov.sp.; (22) H. cordatus; (23, 28) H. subarmatus; (24, 29) H. mexicanus; (25) H. flaviventris; (26) H. acuminatus. Scale: 0.1 mm for fig. 19-26; 0.5 mm for fig. 27-29. fs = file like structure; pa = paramer.