Macrophysoderes modesta ( Miller, 1940 ) Hwang & Weirauch, 2017

Hwang, Wei Song & Weirauch, Christiane, 2017, Uncovering hidden diversity: phylogeny and taxonomy of Physoderinae (Reduviidae, Heteroptera), with emphasis on Physoderes Westwood in the Oriental and Australasian regions, European Journal of Taxonomy 341, pp. 1-118 : 54-56

Macrophysoderes modesta ( Miller, 1940) comb. nov.

Figs 7–12 ; Appendix

Physoderes modesta Miller, 1940: 543 , fig. 88.

Physoderes sibauana Miller, 1940: 553 , fig. 88. New synonymy.

Physoderes trusana Miller, 1940: 553 , fig. 89. New synonymy.

Diagnosis

This species is recognized among species of Macrophysoderes gen. nov. by the elongate, conical head, the rounded maxillary plate, the anteocular lobe being almost level with the postocular lobe, the truncate antero-lateral rounded pronotal projections, the rounded parascutellar lobes that are skewed towards the median, the dark brown hind femur with a single basal straw-colored annulation, the apex of the scutellar process being straw-colored, the undulating connexivum, the cup-like sclerite with distinct medial process, and the flap-like prolongations of the phallosoma being plate-like and with a uniform basal margin. It is similar to M. monticola comb. nov. and M. histrionica comb. nov., but can be differentiated by the uniform color of the legs and connexiva, the margin of the pygophore posterior opening having a medial process and cup-like sclerite, and the shape of the plate-like prolongations of the phallosoma.

Material examined

Holotype

MALAYSIA: ♂, Sarawak, N Borneo, 2.56055° N, 113.00555° E, 112 m, 1909, C.J. Brooks leg. ( UCR_ ENT 00018533 ) ( BMNH).

Other material

MALAYSIA: Sabah: 1 ♀, N Borneo, Bettotan, nr. Sandakan, 5.28222° N, 117.59305° E, 25 Jul. 1927, C. Boden Kloss and H.M. Pendlebury leg. ( UCR _ENT 00018507) ( BMNH); 1 ♀, same collection data as preceding but 26 Jul. 1927 ( UCR _ENT 00018503) ( BMNH); 1 ♀, same collection data as preceding but 19 Aug. 1927 ( UCR _ENT 00018504) ( BMNH); 1 ♀, N Borneo, Sandakan, 5.8333° N, 118.1167° E, 4 m, no date provided, Baker leg. ( UCR _ENT 00030982) ( USNM). – Sarawak: 1 ♀, N Borneo, SAR, 2.55722° N, 113.00111° E, 113 m, no date provided, Saunders leg. ( UCR _ENT 00069384) ( BMNH); 1 ♂, same collection data as holotype ( UCR _ENT 00069386) ( BMNH).

Redescription

Male

BODY LENGTH. Medium, total length 9.45 mm, SD ± 0.05 (Appendix).

COLORATION ( Figs 7 , 10–11 ). Dark brown. Head dark brown. Scape of antenna brown, straw brown basally, pedicel brown, basi- and distiflagellomere brown. Labium brown. Pronotum dark brown, scutellum dark brown, pleuron dark brown, sternum dark brown. Corium of hemelytron dark brown, membrane black to dark brown. Fore and mid legs dark brown, hind femur dark brown, hind tibia dark brown with straw-colored apex, hind tarsus and claw straw-colored. Abdomen dorsally orange-brown, ventrally light brown to brown with reddish-brown or dark brown lateral suffusion, connexivum dark brown with straw-colored posterior margin.

VESTITURE. Glabrous. Head with some flat, curved setae, ventral surface of postocular lobe with sparse, setigerous tubercles, without pair of long, straight setae on postocular lobe posterior to ocelli. Anterior lobe of thorax with irregular row of tuberculated, short, curved setae on lateral margins and fine, adpressed setae on dorsal surface, posterior lobe with only short, sparse setae. Corium of hemelytron with short, sparse, adpressed setae. Legs with two rows of spines and setigerous tubercles, tibiae with regular rows of tuberculated, stout, sharp setae. Posterior margin of connexivum on abdomen with short, fine setae.

HEAD. Elongate conical; maxillary plate rounded apically; scape not reaching apex of clypeus; eye distinctly projecting in dorsal view, less than 1/5 length of head, not attaining ventral margin of head in lateral view; height of anteocular lobe level with postocular lobe.

THORAX. Antero-lateral paired projections truncate; surface of anterior lobe smooth, ridges almost obsolete; median pronotal depression contiguous with transverse sulcus; paramedian carina weakly defined; posterior lobe medially rugose; anterior pronotal lobe shorter than posterior lobe, narrower than posterior lobe, anterior lobe lower than posterior lobe in lateral view; parascutellar lobe rounded, skewed towards median; scutellar process long, with subacute apex; mesosternite with median irregular tuberculated protrusion between fore and mid coxae.

HEMELYTRON. Attaining tip of abdomen.

LEGS. Same as genus description.

ABDOMEN. Elongate ovoid, with rounded terminal margin; connexival margin undulating.

GENITALIA. Anterior margin of mediosternite 8 undulating, with medial apodeme; transverse bridge of pygophore broad, margin of anterior opening angular, apodeme present, apical margin of posterior opening with small medial process; cup-like sclerite with medial process; arms of basal plate rounded; ductifer membranous; endosomal struts conical, with subacute apex, basally divided into two arms; shape of dorsal phallothecal sclerite subacute, with lateral broad, plate-like prolongations.

Female Similar to male.

Ecology

Nothing is known about the biology of this species.

Distribution

This species is collected from both Sabah and Sarawak, Malaysia.

Remarks

This species is transferred to Macrophysoderes gen. nov. because of the similarities it shares with M. monticola comb. nov. and M. histrionica comb. nov. Examination of the type specimens of P. sibauana and P. trusana shows no morphological differences between them and they are hereby synonymized under M. modesta comb. nov.

Figures

Fig. 7. Dorsal habitus images for junior synonym holotypes of species in Breviphysoderes gen. nov. and Macrophysoderes gen. nov. Scale bars = 2 mm.

Fig. 8. Dorsal view of the male pygophore in species of Breviphysoderes gen. nov., Macrophysoderes gen. nov., Paraphysoderes Villiers, 1962 and Physoderes Westwood, 1845. For an explanation of the colored arrows, see keys on pages 37 and 66.

Fig. 9. Dorsal view of the phallus in species of Breviphysoderes gen. nov., Macrophysoderes gen. nov., Paraphysoderes Villiers, 1962 and Physoderes Westwood, 1845 (partial). Scale bars = 0.20 mm.

Fig. 10. Dorsal habitus images for species of Macrophysoderes gen. nov. and Nanophysoderes gen. nov. For an explanation of the colored arrows, see key on page 37. Scale bars = 2 mm.

Fig. 11. Ventral habitus images for species of Macrophysoderes gen. nov. and Nanophysoderes gen. nov. Scale bars = 2 mm.

Fig. 12. Distribution map for species of Macrophysoderes gen. nov.