Lentireduvius brasiliensis Cai & Taylor

Cai, Wanzhi & Taylor, Steven J., 2006, Lentireduvius, a new genus of Peiratinae from Brazil, with a key to the New World genera (Hemiptera: Reduviidae), Zootaxa 1360, pp. 51-60 : 54-59

Lentireduvius brasiliensis Cai & Taylor , new species

( Figs. 1–25 )

Description. Color. Brown, slightly shiny. Antenna, most of corium, apical half of clavus dark yellow; eyes, and markings around ocelli black; spot under ventral margin of eye blackish brown; spot on corium next to clavus, anterior margin of distal half of corium, and most of membrane dark brown; head above, most of rostrum, legs, most of margins of membrane of hemelytron, and abdomen (except second sternite) grayish brown.

Structure. Head, pronotum ( Figs. 2, 3 ), posterior 4/5 of scutellum, abdominal sterna, parameres with thick, scattered setae of varying lengths; antenna, except first segment, densely covered with short semierect setae, first antennal segment with scattered long, oblique, thick setae ( Figs. 4–5 ), second segment with a few trichobothria ( Figs. 7, 8 ), third ( Fig. 9 ) and fourth ( Fig. 10 ) segments with scattered, oblique, somewhat longer setae; basal 1/5 of scutellum, meso- and metathoracic pleura and sterna densely covered with short bent setae; femora and mid tibia with long, suberect or erect, thick setae ventrally. Head relatively short and thick, 1.3 times as long as wide, 0.6 times as high as long; anteocular portion about 3 times as long as postocular portion; first antennal segment thickest; first rostral segment thickest, second segment slightly shorter than combined length of the remaining segments and extending beyond posterior margin of eye; ocelli relatively large, distance between ocelli subequal to distance between eye and ipsilateral ocellus ( Fig. 2 ). Collar process distinctly tuberculate and with a thick seta distally ( Fig. 2 ). Anterior pronotal lobe convex but with longitudinal median depression, lateral pronotal angle round, posterior margin of pronotum distinctly convex posteriorly; stridulitrum consisting of about 190 transverse ridges; fore coxae long and thick, fore femora thickest ( Fig. 11 ), mid femora ( Fig. 12 ) slightly thicker than hind femora ( Fig. 13 ), mid and hind tibiae compressed; hemelytron extending slightly beyond abdominal tip. Abdomen slightly dilated laterally ( Fig. 1 ). Eighth abdominal sternite as shown in Fig. 14 . Parameres subtriangular, left paramere slightly longer than right, apical portion of left paramere more slender than that of right, medial surface of apex of paramere with a process ( Figs. 18–21 ); median pygophore process strongly curved, apex sharp ( Figs. 15–17 ). Phallus in resting position ( Figs. 22, 23 ) with basal plate short, basal plate bridge longer than basal plate; pedicel slightly longer than basal plate bridge in length ( Figs. 22, 23 ). Dorsal phallothecal sclerite moderately sclerotized, middle portion longitudinally depressed ( Figs. 23, 24 ); struts slightly longer than half length of phallosoma in resting position ( Fig. 24 ). Conjunctiva with two ventral lobes, basal one semicircular, apical one nearly rectangular ( Fig. 25 ). Basal portion of vesica densely covered with small processes and with a sacshaped process dorsally; apical portion with a long tubular process with many rows of smaller processes ( Fig. 25 ).

Measurements. ɗ, Body length 15.15, maximal width of abdomen 4.93. Head length 2.40; length of anteocular portion 1.33; length of postocular portion 0.40; length of synthlipsis 0.87; distance between ocelli 0.27; length of antennal segments I–IV = 1.66, 2.67, 3.94, 3.33, length of rostral segments I–III = 0.87, 1.44, 0.60. Length of anterior lobe of pronotum 1.93; length of posterior lobe of pronotum 1.47; maximal width of thorax 4.20; length of scutellum 1.87; length of hemelytron 10.29.

Type material. Holotype, ɗ; Brazil, Mato Grosso, Sinop, October 1976, M. Alvarenga. The right antenna and right mid leg are missing. Genitalia in vial with glycerin pined under the specimen.

Female. Unknown.

Distribution. Mato Grosso, Brazil.

Etymology. Name alludes to the country where the type specimen was collected.

Figures

FIGURE 1. Lentireduvius brasiliensis Cai & Taylor, sp. nov., ♂. Habitus, dorsal view. Scale bar = 2 mm.

FIGURES 2 – 10. Lentireduvius brasiliensis Cai & Taylor, sp. nov., ♂. 2, Head, pronotum and scutellum; 3, head and pronotum (part); 4 – 6, first antennal segment; 7 – 8, second antennal segment; 9, third antennal segment; 10, fourth antennal segment; 2, 4, dorsal view; 3, 6, 8, lateral view; 5, 7, 9, 10, ventral view. Scale bar of 2, 3 = 1 mm; of 4 – 10 = 0.50 mm.

FIGURES 11 – 17. Lentireduvius brasiliensis Cai & Taylor, sp. nov., ♂. 11, Fore leg; 12, mid leg; 13, hind leg; 14, eighth abdominal sternum; 15, 16, pygophore; 17, distal portion of pygophore; 11 – 13, 16, lateral view; 14, 15, 17, ventral view. Scale bar of 11 – 16 = 2 mm; of 17 = 1 mm.

FIGURES 18 – 25. Lentireduvius brasiliensis Cai & Taylor, sp. nov., ♂. 18, left paramere; 19 – 21, right paramere; 22, 23, phallus; 24, 25, phallosoma; 18, 20, outer ventrolateral view; 21, inner ventrolateral view; 19, inner lateral view; 24, dorsal view; 22, 25, left lateral view; 23, right lateral view. Scale bar = 1 mm.