Genus

Pseudoglomeris Brunner von Wattenwyl, 1893: 42, type: Perisphaeria (Perisphaeria) glomeris by original designation — Saussure 1863: 135; Saussure and Zehntner, 1895: 37; Li et al. 2018.

“ Corydidarum ” Brunner von Wattenwyl, 1865 in Beccaloni (2014). Synonymized by Li et al. 2018: 259.

Trichoblatta Saussure & Zehntner, 1895: 44 — Kirby 1904: 191; Princis 1964: 207. Type species: Perisphaeria sericea by subsequent designation; synonymized by Li et al. 2018: 259.

Kurokia Shiraki, 1906: 188, type species K. nigra by monotypy — Princis 1964: 207, as synonym of Trichoblatta. Synonymized by Li et al. 2018: 259.

Glomerexis Bey-Bienko, 1938: 123, type species Glomerexis tibetana Bey-Bienko, 1938 by original designation — Wang and Che 2011: 367. Synonymized by Li et al. 2018: 259; Li 2021: 9.

Glomeriblatta Bey-Bienko, 1950: 270, type species Pseudoglomeris planiuscula Brunner von Wattenwyl, 1893: 44, by original designation — Princis 1964: 207, as synonym of Trichoblatta. Synonymized by Li et al. 2018: 259.

Diagnosis.

Female neotenic, slightly bulging and oval, integument thick; in male adults, hardening limited to pronotum. Pronotum with typical ventral carinae (Fig. 2 D), which end with a lobe or a process, more evident in males. Front femur type C or D. In females and nymphs, abdominal tergites possess one or more pits at sides along tergal furrow (figs 2 N, 5–7 M, 8 L, 9 M). Cerci of nymphs and females very short, segments fused into a single segment. Male phallic complex: sclerotizations of cleft phallomere are R 1 T’, R 2 ’, R 3 ’ and R 5 ’; virga (Fig. 2 G) well developed (except subgenus Glomerexis); basolateral sclerite large approximately as wide as hook-like phallomere (Fig. 2 G); hook-base sclerite and hook at same side (Li et al. 2018). This genus is similar to Perisphaerus Audinet-Serville, 1831, but they can be easily distinguished: the females and nymphs of Perisphaerus can roll up into a ball and which body is plump, while in Pseudoglomeris they cannot, and the pronotum of males of Perisphaerus is more convex than that of males of Pseudoglomeris. Two tropical genera of Perisphaerinae — Frumentiforma Li, Wang & Wang, 2018 and Achatiblatta Li, Wang & Wang, 2018 — live in the same habitat as the species of Pseudoglomeris. Achatiblatta can be distinguished from Pseudoglomeris by its small body size; females and nymphs do not bear pits. Frumentiforma can be distinguished from Pseudoglomeris by the small, slender, cylindrical body and large head, which is wider than ½ of body width.

Description.

Male: head (Fig. 1 A, B): roundly triangular, as wide as 1 / 3 width of pronotum, middle of frons exhibits a concavity; surface with slight metallic luster or not; eyes large and reniform, interocular space at vertex narrow; ocelli round or triangular, pale or hardly visible; antennal sockets round, larger than or equal to ocelli; length of antenna ½ length of body, scape and pedicel relatively stout and elongate, flagellar segments short, with terminal flagellar segments more elongated and slender (Fig. 1 I); longest maxillary palpomere to the shortest one as 5 th, 3 rd, 4 th, 2 nd, 1 st; 5 th maxillary palpomere with apex truncated, hollow (Fig. 1 F); length of 1 st and 2 nd segments of labial palpi equal, 3 rd labial palpomere elongated and apex truncated. Pronotum: transverse, anterior margin curved, posterior margin straight, disc convex; dorsal surface with obvious punctations or not; ventrum with typical carinae at sides, which end with a lobe or a process. Tegmina: fully developed, reduced, or absent; in macropterous form, elongated oval, venation with lots of obvious cells composed by longitudinal veins and numerous cross-veins, color the same as dorsal surface of pronotum; in brachypterous form, tegmina ovate, leathery, covering ½ of abdomen, with lots of obvious cells, color the same as dorsal surface of pronotum. Legs: dark red to black, sometimes slightly metallic; front femur type C 1 or sometimes C 0 or D; hind and middle legs with or without one spine on posterior margin of femur, with or without a basal spine (Fig. 1 G); tarsomeres 1–4 with pulvilli (Fig. 1 E), tarsal claws symmetrical, arolia present (Fig. 1 H). Abdomen: soft, color similar to pronotum; 8 th abdominal sternite largely covered by 7 th sternite, only posterior margin exposed; subgenital plate with a large membranous area on right side (Fig. 3 K); styli present or absent on both sides; paraprocts obvious and apex rounded, left one stouter than right one. Genitalia (Fig. 2 G – J): male phallic complex consisting of three major parts, namely, cleft phallomere, middle phallomere, and hook-like phallomere; sclerotizations of cleft phallomere are R 1 T, R 2, R 3 and R 5; R 1 T and R 2 forming hairpin sclerite, R 5 and R 3 oval, upper ½ of R 5 and R 3 gradually narrowing; middle phallomere composed of rod sclerite and virga or only rod sclerite; rod sclerite virgulate, virga oval, linking rod sclerite by thin sheet; hook-like phallomere containing three sclerites: basolateral sclerite flaky; hook-base sclerite triangular or stripe-shaped; terminal part of hook-apex sclerite bifurcate or not.

Female: head: rounder than male, surface with slight metallic luster or not; width of head 1 / 3 width of pronotum; middle of frons exhibits a concavity or not; eyes large and reniform, interocular space on vertex wider than males; ocelli round or triangular, smaller than that of males, pale or hardly visible; antennal sockets round, bigger than ocelli; length and shape of antenna, labial palpus and maxillary palpus similar to males (Fig. 1 A – D). Pronotum: transverse, anterior margin curved, posterior margin truncated, dorsal surface with obvious punctations or not; thicker than in males; disk convex; ventral pronotum with typical carinae at sides (Fig. 2 M). Tegmina and hindwing absent; abdomen integument hardened, sometimes slightly metallic; pits usually present on both sides of third through seventh tergum. Abdomen: 8 th and 9 th abdominal tergites concealed, only posterior margins exposed. Cerci of females very short, with only one segment. Supra-anal plate transversely oval, anterior margin truncated, posterior margin curved; dorsal surface with punctations. Genitalia (Fig. 2 O): Two tergal extensionsstraight, linking supra-anal plate and major part of genitalia; two gonocoxae banded and curved, extremity of gonocoxae approaching each other; gonangulum rectangular or trapezoidal, one or two protrusions present on apical edge; valvula I bended, extremity of valvula I rounded, containing two sclerites internally (sclerotization of valvula I); valvula II bended, valvula III triangular; basal part of valvula II and valvula III enlarged; anterior arch of 2 nd valvifer ring shallowly arched; lateral part of posterior lobe of 2 nd valvifer ring short, tip enlarged and arrowhead-shaped.

Remarks.

The term “ Corydidarum ” was initially regarded as a generic name in the cockroach species file (Beccaloni 2014) and later classified as a synonym of Pseudoglomeris (Li et al. 2018). Poggi (2023) clarified that “ Corydidarum ” is not a scientific name. Brunner von Wattenwyl (1865) wrote “ Corydidarum gen. et sp. nov. ”, indicating that Perisphaeria (Blepharodera) sericea Saussure, 1863 should be regarded as a new species within a yet-to-be-described genus of the family Corydiidae (Poggi 2023). The term “ Corydidarum ”, meaning “ of the Corydidae [Corydiidae] ”, is merely the Latin plural genitive (correctly ending in - arum) of the family name Corydiidae.