Callitropisca, Namyatova & Cassis, 2021

Namyatova, Anna A. & Cassis, Gerasimos, 2021, Five new genera of the subfamily Cylapinae (Insecta, Heteroptera, Miridae) from Australia, ZooKeys 1012, pp. 95-134 : 95

Callitropisca gen. nov.

Type species.

Callitropisca florentine sp. nov. by original designation.

Diagnosis.

Callitropisca can be recognised using following combination of characters: swollen and rounded calli, separated from each other; collar and rest of pronotum with distinct depression (Fig. 8D ); vertex upraised above eye in lateral view (Fig. 8G ); in lateral view distance between eye and ventral margin of eye equal to 1/6 of eye height (Fig. 8G ); vertex not carinate (Fig. 8D, G ); lateral margins of pronotum strongly carinate (Fig. 8G ); apex of labial segment I not reaching pronotum (Fig. 8G ); antennal segment I subequal to vertex width; antennal segment II straight, cylindrical, not widened or swollen (Fig. 8G, F ); body impunctate, head and pronotum rugose; pleura smooth, without distinct rugosities (Fig. 8D, E, I-K ); body covered with very short and sparse simple setae and small tubercles (Fig. 8K ); hemelytron full, not shortened or modified, with whitish stripes on clavus and corium (Fig. 2 ); claval commissure twice as long as scutellum (Fig. 8J ); metathoracic evaporative area large and triangular (Fig. 8E ); left paramere with large outgrowth on basal part directed outwards and upwards (Fig. 9G, H ), apical part of ductus seminis widened, with two lobes having row of narrow outgrowths along outer margin (Fig. 9A-C ); dorsal labiate plate without sclerotised rings (Fig. 10A ).

Description.

Male. Coloration (Fig. 2 ). Background colouration brown to dark brown, with yellow stripes on hemelytron. See species description for details. Surface and vestiture. Head and pronotum shiny, hemelytron matte (Fig. 2 ). Body impunctate; head and pronotum with distinct rugosities (Fig. 8D, G ); pleura almost smooth, not visibly rugose (Fig. 8E ); head laterally, scutellum and hemelytron clothed with small tubercles (Fig. 8G, J, K ); net-like pattern of microsculpture present on mesopleuron ventrally (Fig. 8E ); scutellum not serrate laterally (Fig. 8J ). Body clothed with short adpressed setae, shorter than antennal segment II width; setae on dorsum very short and sparse (Fig. 8K ); setae on antenna, pleura, legs and abdomen denser and longer; mesopleuron almost without setae; metapleuron with dense adpressed setae anteriorly (Fig. 8E ); spines on tibiae short and pale; body impunctate (Fig. 8D, E, G, J, K ). Structure and measurements. Body elongate. Head. Horizontal, dorsally as long as wide or slightly longer than wide, not carinate; eye not covering anterior margin of pronotum posteriorly, not protruding; vertex not carinate (Fig. 8D ); in anterior view head wider than high; base of clypeus not delimited with depression, located above ventral margin of eye and antennal fossa; antennal fossa located near ventral margin of eye (Fig. 8A ); in lateral view head slightly longer than high; vertex upraised above eye; base of clypeus not delimited with depression; distance between eye and ventral margin of head subequal to 1/6 of eye height; eye placed close to lateral margin of pronotum, but not covering it; antennal fossa removed from eye at distance equal to antennal fossa width, and located close to suture between mandibular and maxillary plates; mandibular and maxillary plates not separated by suture or depression from head; labrum triangular, shorter than labial segment I length; buccula elongate, 5-6 × as long as wide; distance between buccula and pronotum as long as buccula length (Fig. 8G ). Antenna. Total length shorter than body; antennal segment I not widened, shorter than head width; antennal segment II cylindrical, slightly thinner than segment I, longer than head width; segment III slightly thinner than segment II, cylindrical, slightly shorter than segment II; segment IV subequal to half of segment III, and as thick as segment III (Fig. 8G, F ). Labium. Apex reaching abdominal segments IV-V (Fig. 8H ); labial segment I not surpassing posterior margin of head, subdivided in apical half (Fig. 8G, I ); segment II almost twice as long as segment I, subdivided subapically, its apical part 9-10 × as long as wide (Fig. 8C, G ); segment III subequal to 2/3 of segment II, more than 10 × as long as wide; segment IV subequal to 2/3 of segment III (Fig. 8H ). Thorax. Pronotum wider than long; lateral margins straight in dorsal view, carinate; collar delimited dorsally and laterally (Fig. 8D, G ); calli large, upraised, rounded, covering slightly more than half of pronotum, separated from each other and pronotum with distinct depression; posterior margin concave (Fig. 8D ); scutellum flat, mesoscutum exposed, (Fig. 8J ); propleural suture T-shaped (Fig. 8G ); mesothoracic apodeme slit-like; mesothoracic spiracle oval, with one or two rows of microsculpture along anterior margin; metathoracic gland evaporative area large and triangular, lateral margin almost reaching base of hind coxa; peritreme upraised, rounded; metepimeron narrow (Fig. 8E ). Hemelytron. Outer margin rounded (Fig. 2 ); ridge on clavus present, distinct; claval commissure twice longer than scutellum; medial fracture almost reaching middle of corium; ridge along medial fracture only basally visible; R+M basally visible and faint medially and apically (Fig. 8J ); embolium wide, its widest part subequal to quarter of cuneus width at base (Fig. 2 ); cuneus delimited with faint suture, not incised; membrane with two cells; distance between cell and membrane longer than cell length (Fig. 8B ). Legs. Forecoxa shorter than pronotum length, slightly wider and longer than middle and hind coxa; forefemur 4 × as long as wide, wider than and as long as middle femur (Fig. 8H ); hind legs broken; claw with subapical tooth, unguitractor with medial row fully developed (Fig. 8L ). Genitalia. See species description.

Etymology.

The genus is so named because of its swollen calli. The gender is feminine.

Remarks.

Callitropisca has all the diagnostic features for Fulviini , e.g., horizontal head, antenna shorter than body, forecoxae and forefemora enlarged, labium reaching middle of abdomen ( Gorczyca 2000). It also has subdivided labial segments I and II, which is common for this group ( Wolski and Henry 2015; Namyatova and Cassis 2019a). Therefore, we place Callitropisca into Fulviini . This genus differs from all other Fulviini representatives in the diagnostic characters, especially in possessing swollen and rounded calli, separated from each other, and the collar and rest of pronotum with a distinct depression (Fig. 8D ).

Callitropisca is most similar, and, presumably, most closely related to Micanitropis and Xenocylapidius . Callitropisca , and Micanitropis have a similar colour pattern, with the body mainly brown to dark brown and whitish yellow longitudinal stripes on the clavus and corium (Fig. 2 ), the presence of rugosities on the head and pronotum (Figs 8A, D, G, J , 13A, E, I, M ), the setae on the hemelytron sparse (Figs 8K , 13B ), the presence of an outgrowth on the right side on posterior margin of genital capsule when viewed dorsally (Figs 9I , 14D ), and the aedeagus with the ductus seminis having a row of narrow outgrowths along the apical margins (Figs 9A-C , 14A, B ). The structure of the genital capsule for Xenocylapidius is unknown; however, it has a similar structure of the aedeagus ( Wolski and Gorczyca 2014b). The authors named the structure "basal sac of endosoma". However, it has similar shape and position as the apical part of the ductus seminis in Callitropisca and Micanitropis . In all those species, the left paramere has a large outgrowth in the basal half (Figs 9G, H , 14G, H ; Wolski and Gorczyca 2014b: figs 19, 24, 29, 35, 40). The hemelytron of Callitropisca and Micanitropis is covered with rounded small tubercles (Figs 8K , 13B ), and similar microstructure, although more elongate in shape, was also observed in the examined species of Xenocylapidius by the first author. Both, Xenocylapidius and Micanitropis differ from Callitropisca in the calli being less developed, and not surrounded by a distinct depression (Fig. 13E ; Wolski and Gorczyca 2014b: figs 1-8), the frons not raised above the eye in lateral view (Fig. 13I ; Wolski and Gorczyca 2014b: figs 9-15), and the labial segment I reaching the pronotum (Fig. 13I, N ; Wolski and Gorczyca 2014b: figs 9-15). Micanitropis additionally differs from Callitropisca in the pleura being noticeably rugose (Fig. 13J ), the claval commissure being only slightly longer than clavus (Fig. 13M ) and the dorsal labiate plate possessing large sclerotised rings (Fig. 10B ).

Figures

Figure 2. Habitus of Callitropisca florentine, Laetifulvius morganensis, and Micanitropis seisia.

Figure 8. SEM images. Callitropisca florentine A head, anterior view B cuneus and membrane cell C apical part of labial segment II D head and pronotum, dorsal view E pleura F antenna G head and pronotum, lateral view H labium I labial segment I J scutellum, clavus and corium K tubercles on hemelytron L pretarsus, ventral view M pretarsus, dorsal view.

Figure 9. Male genitalia. Callitropisca florentine A aedeagus, left lateral view B aedeagus, dorsal view C aedeagus, ventral view D theca E left paramere, dorsal view F left paramere, posterior view G right paramere, dorsal view H right paramere, posterior view I genital capsule.

Figure 10. Female genitalia. Callitropisca florentine A dorsal wall C ventral wall of bursa copulatrix E posterior wall of bursa copulatrix. Micanitropis seisia B dorsal wall D ventral wall of bursa copulatrix.

Figure 13. SEM images. Micanitropis seisia A head, anterior view B tubercles on hemelytron C labial segment I D apical part of labial segment II E head and pronotum, dorsal view F cuneus and membrane cell G trichobothria on middle femur H trichobothria on hind femur I head and pronotum, lateral view J pleura K antennal segments I, II L pretarsus, ventral view M scutellum, clavus and corium N legs O hind tarsus P pretarsus, dorsal view.

Figure 14. Male genitalia. Micanitropis seisia A aedeagus, left lateral view B aedeagus, dorsal view C theca D genital capsule E left paramere, dorsal view F left paramere, posterior view G right paramere, posterior view H right paramere, dorsal view.