Omoplandria, CAMERON, 1949

Hanley, Rodney S., 2003, Generic revision of the staphylinid beetle tribe Hoplandriini (Insecta: Coleoptera: Staphylinidae: Aleocharinae), Zoological Journal of the Linnean Society 138 (1), pp. 83-140 : 125-130

publication ID	https://doi.org/ 10.1046/j.1096-3642.2003.00060.x
persistent identifier	https://treatment.plazi.org/id/3F272601-5067-FFD5-C20F-F8B8FBE8FDC0
treatment provided by	Carolina
scientific name	Omoplandria
status

Treatment

GENUS OMOPLANDRIA CAMERON, 1949 View in CoL ( FIG. 23 View Figure 23 )

Omoplandria Cameron, 1949:475 View in CoL . Blackwelder, 1952:274. Hanley, 2002a:301. Hanley, in press b.

Type species: Omoplandria fuscipennis Cameron (1949) by monotypy.

Diagnosis: This genus is distinguishable from the other genera of Platandriina by the following combination of characters: body very small, 1.6–1.9 mm; eyes average to large, 0.5–0.7 times length of head; apex of galea densely covered with rows of short, fine hairs; labial palps with three distinct articles; mesosternum without a medial carina; mesocoxal cavities continuous, only partially separated by meso- and metasternal processes; empodial bristle of hind legs shorter than tarsal claws, but longer than 1/2 length of tarsal claws; apices of abdominal terga with typical macrosetae, not large, heavy, black setae; abdominal tergum IX with a distinct crescent-shaped setal pattern; males with secondary sexual features of abdominal tergum VII with two small denticles present on each side of midline and tergum VIII without any modifications.

Description: In agreement with Platandria description, except for the following characters. [1] Lengths of adults 1.6–1.9 mm. [3] Surface moderately glossy, more or less evenly pubescent with [4] fine punctation and microsculturing; [5] pubescence more or less evenly dense on head, [6] abdominal terga, [7] pronotum, [8] elytra, and [9] abdominal sterna.

Head: [11] With eyes moderate to large, 0.5–0.7 times length of head. [13] Infraorbital carina very weakly developed and more or less complete. Antenna with [15] articles 1–3 elongate, 1.8–2.0 times longer than wide; [16] segment 4 more or less quadrate; [17] articles 5–10 short, 1.4–2.0 times wider than long, [18] coeloconical sensilla present in segment 11 ( Fig. 23A View Figure 23 ).

Mouthparts: Labrum with epipharyngeal area with [19] medial pores large, numerous, uniformly distributed in [20] well-delimited, wide, longitudinal sensory field; [21] pores between longitudinal sensory field and lateral sclerotized areas absent. Mandible ( Fig. 23B,C View Figure 23 ) [22] asymmetrical with right with two median teeth; [23] apex more or less acute and curved adorally; [24] condylar molar patch small, width less than 1/5 of basal mandibular width, [25] composed of small denticles, [26] moderately densely arranged; [30] ventral aspect with outer basal angle with setae absent. Maxilla ( Fig. 23D View Figure 23 ) with [31] lacinia subequal to slightly longer than galea, [33] teeth on adoral margin moderately long, about 6 times longer than wide, and [34] more or less closely placed; [37] galea moderately narrow, width subequal to lacinia at widest area, mostly parallel-sided and broadly rounded apically, [39] densely covered with rows of short, fine hairs, giving appearence of stubble; [40] maxillary palpi with 4 articles and a well defined pseudosegment. Labium with ligula [48] with numerous sensory pores on each lobe of forked apex; [49] two relatively long, medial setae of prementum present, about 1.5 times longer than ligula, [50] insertion of setae more or less widely separated; [51] real pores and [52] setal pores present; [54] lateral pore field typically with a single short setose pore and three asetose pores; hypoglossal lobes with setae along [57] entire length of adoral margin. Labial palpi [58] short, overall length 3–4 times longer than greatest width, [60] with distal pore field composed of numerous small pores; [61] segment 1 about 1.2 times longer than segment 2, [62] segment 3 about 1.2 times longer than segment 2. Mentum with [65] apical margin broadly concave with [66] antero-lateral angles obtusely rounded; [67] many sensory pores primarily distributed along each side of midline.

Thorax: Pronotum [68] distinctly transverse, [69] about 1.5 times wider than long, [70] more or less convex. Setae [72] directed primarily directly posterior to slightly posterolaterally. [74] Elytra moderately broad, wider apically than basally; [76] elytra together about 1.3–1.4 times as wide as long; microsetae [79] primarily directed directly posteriorly to posterolaterally. [83] Meso- and metasternal processes ( Fig. 23E View Figure 23 ) separated by wide isthmus, width about 1/5 length of coxal cavities; [84] mesosternal process more or less acute at apex. Metasternum [85] length about 1/5 width of mesocoxae. Macrosetae [88] present on mesosternum, primarily at apex of mesosternal process; [89] present on metasternum. Legs with [91] tarsal claws more or less long and slender, [93] empodial bristle shorter than tarsal claws, but longer than 1/2 length of tarsal claws; [94] segment 1 of hind tarsus 1.3 times length of segment 2.

Abdomen: ( Fig. 23F,G View Figure 23 ) [97] fusiform, tapering apically to broadly pointed apex.

Secondary sexual characteristics: Males somewhat variable, with [107] two small denticles present on each side of midline on tergum IV ( Fig. 23F View Figure 23 ); [108] tergum VII– VIII with small, narrow setiferous denticles ( Fig. 23G View Figure 23 ); [109] tergum VIII unmodified.

Aedeagus: Bulb of median lobe [111] with distinct, ventral projection; parameres [114] with 2 long setae at apex; [115] paramerite ( Fig. 23H View Figure 23 ) anterior margin slightly concave; condylite with [116] apex sclerotized, [117] shorter in length to apex of paramerite.

Spermatheca: [118] Significantly bent with three primary divisions: basal bulb [119] simple and rounded at base; neck [120] with two significant bends of about 90–120∞, [120a] end of tube with distinct bulb-like structure; and tube [122] more or less straight.

Habitat: Unknown.

Comments: Omoplandria contains only two described species, O. fuscipennis Cameron and O. gyrophaenula (Sharp) .

Distribution: ORIENTAL REGION. Taiwan. PALAEARCTIC REGION. Japan.

GENUS PAROPLANDRIA CAMERON, 1936 View in CoL

( FIGS 24,25 )

Paroplandria Cameron, 1936:21 View in CoL . Blackwelder, 1952:295. Hanley, 2002a:301. Hanley, in press b.

Type species: Paroplandria typica Cameron, 1936 by original designation.

Diagnosis: This genus is distinguishable from the other genera of Platandriina by the following combination of characters: body average in size, 2.0– 4.1 mm; eyes small, 0.3–0.4 times length of head; apex of galea densely covered with rows of long hairs; labial palps with three distinct articles; mesosternum with a prominent medial carina, not reaching apex of mesosternal process; mesocoxal cavities widely separated, completely separated by meso- and metasternal processes; empodial bristle of hind legs subequal to length of tarsal claws; apices of abdominal terga with 2–4 large, black, heavy setae present; abdominal tergum IX without a distinct crescent-shaped setal pattern; males with secondary sexual features of abdominal tergum VII with two narrow, median denticles along midline and tergum VIII without modifications.

Description: In agreement with Platandria description, except for the following characters. [1] Lengths of adults 3.0– 4.1 mm. [2] Body broadly fusiform to parallel-sided; [3] surface glossy, more or less evenly pubescent with [4] distinct, generally large punctation and microsculturing; [5] pubescence variably dense on head, [7] pronotum, [8] elytra, and [9] abdominal sterna, [6] sparce on abdominal terga.

Head: [10] Round, about as wide as long. [11] Eyes small, 0.3–0.4 times length of head. [13] Infraorbital carina strongly developed and complete. Antenna with [15] articles 1–3 elongate, about 4.0 times longer than wide; [16] segment 4 about 3.0 times longer than wide; [17] articles 5–10 slightly elongate to more or less quadrate, [18] coeloconical sensilla absent from segment 11.

Mouthparts: Labrum ( Fig. 24A View Figure 24 ) with epipharyngeal area ( Fig. 24B View Figure 24 ) with [20] well-delimited, wide, longitudinal sensory field; [21] pores between longitudinal sensory field and lateral sclerotized areas absent. Mandible ( Fig. 24C,D View Figure 24 ) [22] appearing asymmetrical with right with median tooth; [24] condylar molar patch small, width less than 1/5 of basal mandibular width, [25] composed of few, large, heavy teeth basally, [26] widely spaced; [27] subcondylar molar patch present, [27a] composed of heavy teeth arranged in horizontal rows; dorsobasal ‘velvety patch’ [28] large, wider than half of mandibular base, composed of [29] heavy teeth arranged in organized horizontal rows; [30] ventral aspect without setae. Maxilla ( Fig. 24E View Figure 24 ) with [33] teeth on adoral margin variable in length, about 4–10 times longer than wide; galea with apex [39] densely covered with rows of relatively long, fine hairs, generally giving appearance of flowing hairs; [40] maxillary palpi with distinct 4 articles and very poorly defined pseudosegment, [42] articles 1 without setae. Labium ( Fig. 24F View Figure 24 ) with ligula [46] highly expanded apically and [47] deeply forked apically with fork about 2/3 length of ligula, [48] apex of each fork with numerous, small denticles, two long spines just below apex of each division of fork; [49] two very long, medial setae of prementum present, more or less subequal to combined lengths of labial palps, [50] insertion of setae almost adjacent, [50a] on distinct sclerite raised above level of prementum; [54] lateral pore field typically with a single short setose pore, two asetose pores, and numerous small pseudopores; [55] hypoglossal lobes ( Fig. 24G View Figure 24 ) long, reaching apical half of ligula, [56] with long, about 5 times longer than width of lobe, comb-like, internally curved setae along [57] entire length of adoral margin. Labial palpi ( Fig. 24F View Figure 24 ) with [61] segment 1 about 2.0 times longer than segment 2, [62] segment 3 about 1.4 times longer than segment 2. Mentum with [65] apical margin slightly concave with [67] numerous sensory pores distributed anteriorly near midline.

Thorax: Pronotum [68] subquadrate, [69] about as long as wide, [70] moderately convex. [76] Elytra together about 1.4 times wider than long. Mesosternum ( Fig. 25A View Figure 25 ) [80] with medial carina, not reaching apex of mesosternal process. Mesocoxal cavities ( Fig. 25A View Figure 25 ) [81] widely separated by meso- and metasternal processes by about 1/4 length of coxal cavities. Mesosternal process [82] longer than metasternal process, extended to basal 2/3 of coxal cavities; [83] meso- and metasternal processes separated by very short isthmus; [84] mesosternal process broadly rounded at apex. Metasternum [85] slightly shorter in length to width of mesocoxae; [87] metasternal process flattened at apex. Macrosetae [88] absent from mesosternum; [89] present on metasternum. Legs with [91] tarsal claws more or less long and slender, [93] empodial bristle subequal in length to tarsal claws; [94] segment 1 of hind tarsus about 2.0 times length of segment 2; [95] segment 2 slightly shorter than combined lengths of articles 3–4.

Abdomen: ( Fig. 25B View Figure 25 ) [97] elongate, more or less parallel-sided, tapering apically to pointed apex; [98] terga III – V with slightly deep transverse basal depressions on anterior portion. [99a] Apices of terga with 2–4 large, heavy, black setae present. [101] Tergum IX with more or less crescent-shaped setal pattern with distinct break in setation at basal midline.

Secondary sexual characteristics: Males somewhat variable, with [108] tergum VII with two, small, narrow denticles each side of midline; [109] tergum VIII without median logitudinal carina.

Aedeagus: ( Fig. 25C View Figure 25 ) Bulb of median lobe [110] elongate, generally subequal to length of tube, more or less quadrate [111] with small, indistinct ventral projection; internal sac [112] with numerous sclerites; [113,114,115,116,117] unknown.

Spermatheca: ( Fig. 25D View Figure 25 ) [118] Significantly bent with basal bulb, [119] very large, simple and broadly rounded at base; neck [120] with three bends of about 90–120∞.

Habitat: Unknown.

Comments: The only male of Paroplandria examined is highly damaged with many body parts missing, including the parameres. Paroplandria consists of one species, P. typica Cameron.