Cassisotropis aciformis Taszakowski et al., 2022

Taszakowski, Artur, Masłowski, Adrian, Wolski, Andrzej & Gorczyca, Jacek, 2022, Two new genera and species of the Fulviini (Hemiptera, Heteroptera, Miridae Cylapinae) from Madagascar, with a checklist of Madagascan cylapines, Zootaxa 5209 (1), pp. 93-110 : 96-100

Cassisotropis aciformis Taszakowski et al. sp. nov.

( Figs. 1–4 )

Material examined. Holotype (♂): ’CE MADAGASCAR 2014 \ Toamasina pr.; Andisabe- \ Mantadia N.P. 961m \ Analamazaotra forest \ 18°56.324'S 48°25.396'E \ 961m; 9. –12.ii., M.Trýzna lgt .’; Paratype: (♀): same as holotype.

Diagnosis. See the generic diagnosis.

Description. Male. COLORATION. Dorsum yellow fuscous with black and brown areas ( Fig. 1A ). Head. Contrastingly yellow; vertex with small reddish patch on medial part of posterior margin, with relatively large fuscous patch in middle of area adjacent to frons, and with two black patches, each contiguous with posterior part of eye; frons with small reddish patch on medial portion of area adjacent to vertex, with two black patches, each contiguous with medial part of eye and with two black patches places between antennal insertion and eye; mandibular plate with two reddish patches medially; maxillary plate and buccula yellow anteriorly, dark brown posteriorly; gula mostly yellowish with dark brown areas; antennal segment I yellow, tinged with red subapically; segment II yellow with relatively broad reddish annulation subapically and black fuscous narrow annulation apically; segments III and IV missing in holotype; labium dark brown weakly tinged with dark yellow ( Figs 1A, C ). Thorax. Pronotum. Black with broad yellow fuscous band medially being paler on collar and anterior lobe; humeral angle yellow ( Fig. 1A ). Mesoscutum and scutellum. Black; mesoscutum indistinctly tinged with yellow; scutellum with yellow spot apically ( Fig. 1A ). Thoracic pleura. Pro- and mesopleuron black; mesepimeron weakly and narrowly tinged with yellow dorsally and ventrally; metepisternum fuscous anteriorly, dark yellow posteriorly, scent gland evaporative areas and peritreme yellow; metepimeron dark brown. Hemelytron. Yellow fuscous with brown and black areas; clavus, endocorium and cuneus fuscous, entirely mottled with yellow and with brown mottling medially; clavus with relatively large, yellow patch subapically; endocorium with blackish patch apically; cuneus with blackish tinge near medial part on inner margin; exocorium and embolium yellow, tinged with fuscous and brown; membrane with indistinct yellow tinges ( Fig. 1A ). Legs. Coxae yellow; fore coxa weakly tinged with red; femora dark brown fuscous with two irregular annulations near apex, apical part weakly tinged with red; profemur weakly and narrowly tinged with yellow; meso- and metafemora with well-developed yellow tinge; tibiae and tarsi dark yellow ( Figs 1A, C ). Abdomen. Reddish, tinged with fuscous, pygophore fuscous ( Fig. 1C ).

Female. Similar to male in coloration ( Figs 1B, D ).

Measurements. Male (n=1)/Female (n=1)

Body. Length, clypeus–apex of membrane: 4.04/4.47; width: 1.72/1.80.

Head. Length: 0.68/0.73; width, including compound eyes: 0.75/0.74; vertex width: 0.34/0.40; eye dorsal width: 0.21/0.17; height in lateral view: 0.41/0.42.

Antenna. Length of segment I: 0.46/0.48; II: 1.27/1.27; III: –/0.53; IV: –/–.

Labium. Total length: –/–; length of segment I: 0.54/0.63; II: 0.66/–; III: 0.58/–; IV: 0.46/–.

Pronotum. Mesal pronotal length: 0.59/0.63; lateral pronotal margin length: 0.65/0.72; posterior pronotal maximal width (straight): 1.33/1.35.

Scutellum. Anterior width: 0.66; length (mesoscutum excluded): 0.44/0.51, length (mesoscutum included): 0.78/0.81.

Hemelytron. Claval commissure: 0.72/0.84; heme length: 3.15/3.31; corium length: 1.74/1.79; outer cuneal margin length (straight): 0.64/0.67; cuneus width: 0.70/0.66; cell length: 0.80/0.87; cell width: 0.33/0.41.

Hind leg. Femur length: 1.36/1.43; tibia length: 1.98/2.04; tarsus length: 0.42/0.39; length of tarsal segment I: 0.19/0.19; II: 0.30/0.31.

Biology. Unknown; specimens were collected in rainforest.

Distribution. Central west Madagascar ( Fig. 9 ).

Etymology. The specific epithet is derived from the Latin acus (needle) and forma (shape) and is used to denote endosoma with needle-like sclerite apically.

Figures

FIGURE 1. Cassisotropis aciformis gen. et sp. nov.: holotype, male: dorsal (A) and lateral view (C), paratype, female: dorsal (B) and lateral view (D).

FIGURE 2. Cassisotropis aciformis gen. et sp. nov.: holotype, male: lateral view (A), front part of the body in dorsal view (B), head in the frontal view (C), and antero-dorsolateral view (D) paratype, female: head in the lateral view (E), metathoracic scent gland (F); holotype, male: genital capsule in caudal view (G), metatarsus, lateral view (H) pretarsus of the hindleg (I).

FIGURE 3. Cassisotropis aciformis gen. et sp. nov.: male genitalia: pygophore (A, B): dorsal view (A) and caudal view (B); aedeagus, right lateral view (C, D): with theca (C), without theca (D); left paramere (E–G): right lateral view (E), ventral view (F), and left lateral view (G); right paramere (H, I): right lateral view (H) and left lateral view (I). ap = apical process; bp = basal process; ds = ductus seminis; dss = sclerotized portion of ductus seminis inside endosoma; pb = paramere body; sl = sensory lobe.

FIGURE 4. Cassisotropis aciformis gen. et sp. nov.: female genitalia: bursa copulatrix (A–E): dorsal view (A, B): with first valvulae (A), with first valvulae removed (B), ventral view (C), lateral view (D), and posterolateral view (E); posterior wall of bursa copulatrix (F); ovipositor (G–I): first valvulae (G), apex of first valvula (H), and apex of second valvula (I). dlp = dorsal labiate plate; ds = dorsal sac; irs = interramal sclerite; m = membranous structure connecting first valvulae; odl = lateral oviduct; ra1 (g8ra) = ramus of the first valvula (gonapophysis 8); ra2 (g9ra) = ramus of the second valvula (gonapophysis 9); sd = seminal depository; sgl = spermathecal (vermiform) gland; sr = sclerotized ring; va1 (gp8) = first valvula (gonapophysis 8); vlp = ventral labiate plate.

FIGURE 9. Distribution of Infernotropis madagascariensis Taszakowski et al. gen. et sp. nov. and Cassisotropis aciformis Taszakowski et al. gen. et sp. nov.; location of the Fulvius anthocoroides site.