Triplatygini
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publication ID |
https://doi.org/ 10.5281/zenodo.5341677 |
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persistent identifier |
https://treatment.plazi.org/id/A303878B-FFFA-1511-FE8F-B5068D0C8C1D |
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treatment provided by |
Felipe |
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scientific name |
Triplatygini |
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Key to the Triplatygini genera and species of Triplatyx
1 Large (body length 17-22 mm). Head and anterior part of pronotum, in lateral view, inclined nearly orthogonally downwards. Lateral margin of each laterotergite with two sharp triangular projections. Body brown, humeral angles black, connexivum with alternating black and yellow spots. ................ Tricompastes Cachan, 1952 : T. gigas Cachan, 1952
– Small (body length 4.7-8.4 mm). Head and anterior part of pronotum, in lateral view, inclined downwards at a sharp angle. Lateral margin of laterotergites sinuate or straight, lacking sharp triangular projections. Body uniformly pale to dark brown or pale ochraceous. ............................................................................................................................. 2
2 Body more elongated, pale ochraceous. Head lacking anteocular spines. Humeral angles of pronotum markedly produced anteriad, narrowing, and usually with bifid apices. Scutellum dorsally flat, without a hump. Lateral margins of laterotergites straight. ....... ....... Anoano Cachan, 1952 ( A. pronotalis Cachan, 1952 , A. milloti Schouteden, 1954 )
– Body shorter and wider, brown. Head with one anteocular spine on each side. Humeral angles of pronotum produced laterad and less markedly anteriad, wide and with widely rounded to nearly quadrangular apices. Scutellum often bearing a dorsal hump. Lateral margins of laterotergites more or less sinuate. Triplatyx Horváth, 1904 ...................... 3
3 Small (body length 4.7-5.1 mm), dark to blackish brown. Head nearly quadrangular, its anterior margin setose ( Fig. 1 View Figs ). Pronotum dorsally uneven, bearing large pale triangular elevation in anterior part; anterolateral angles not carinate, spinose ( Figs. 8 View Figs , 67, 70 View Figs ); in lateral view, pronotum depressed posteriorly, forming sharp angle with anterior surface of scutellum; scutellar disc with high, conical hump in its anterior half ( Fig. 71 View Figs ). Lateral margin of connexivum strongly sinuate ( Figs. 29 View Figs , 67 View Figs ). Legs off-white, lacking small dark spots, femora extensively dark brown basally ( Fig. 68 View Figs ). ...... T. bilobatus Cachan, 1952
– Large (body length 5.0-7.5 mm), pale to dark brown. Head quadrangular to trapezoid (widening towards apex), its anterior margin without setae ( Figs. 2-4, 7 View Figs ). Pronotum dorsally usually flat, lacking pale triangular elevation in anterior part; anterolateral angles carinate, bearing usually only one short spine ( Figs. 9-14 View Figs ); in lateral view, pronotum rather flat posteriorly, forming obtuse angle or confluent with anterior surface of scutellum ( Figs. 72-75 View Figs ). Lateral margin of connexivum weakly sinuate ( Figs. 30-34 View Figs ). Legs brownish with small dark spots ( Fig. 83 View Figs ). ............................................................................................. 4
4 Larger (body length 6.1-7.5 mm), pale brown. Head nearly quadrangular, sides of paraclypei regularly rounded ( Fig. 7 View Figs ). Humeral angles of pronotum very large, almost quadrangular, distinctly turned upwards ( Fig. 14 View Figs ). Scutellum dorsally with very high, conical hump ( Fig. 75 View Figs ), posteriorly bearing prominent longitudinal ridge ( Fig. 82 View Figs ). Metathoracic scent gland with ostiole oriented laterad (hardly visible from above), auricle large (about twice longer than ostiole wide; Fig. 23 View Figs ). Evaporatorium large, especially on mesopleura ( Fig. 25 View Figs ). ................................................................................................. T. stysi sp. nov.
– Smaller (body length 5.0-7.1 mm), pale to dark brown. Head trapezoid, sides of paraclypei distinctly produced laterad ( Figs. 2-4 View Figs ). Humeral angles of pronotum smaller, usually widely rounded, hardly or not turned upwards ( Figs. 9-13 View Figs ). Scutellum dorsally with moderately high, rounded hump ( Figs. 65-66 View Figs , 73-74 View Figs ), or weakly and regularly convex ( Figs. 64 View Figs , 72 View Figs ), posteriorly usually lacking longitudinal ridge. Metathoracic scent gland with ostiole oriented ventrolaterad (well visible from above), auricle small (less than twice longer than ostiole wide; Figs. 20-22 View Figs ). Evaporatorium small, forming only very narrow strip on mesopleura along its posterior margin ( Figs. 16-17 View Figs , 24 View Figs ). .................... 5
5 Pygophore with posterolateral angles sharply pointed; ventral wall posteromedially with deep round depression; ventral rim missing, ventral rim infolding directed posteriad, not bent, shallowly and widely V-shaped medially, lateral projections low, rectangular, apically sharp, shifted laterad towards posterolateral angles ( Figs. 37-38 View Figs ). Paramere as in Fig. 49 View Figs , with apex in situ directed laterad ( Fig. 37 View Figs ). Hump on scutellum high ( Fig. 73 View Figs ). Humeral angles quadrangular; pronotum and scutellum medially with longitudinal callose line ( Fig. 12 View Figs ). Auricle very small, about as long as ostiole wide ( Fig. 21 View Figs ). Body length J 5.4 mm. ........................................................................... T. kerzhneri sp. nov.
– Pygophore with posterolateral angles rounded ( Figs. 41-42, 44-45 View Figs ); ventral wall different; ventral rim infolding bent upwards, shallowly concave medially, lateral projections rectangular, not shifted laterad ( Figs. 41-46 View Figs ). Paramere different ( Figs. 48, 50 View Figs ), with apex in situ directed dorsolaterad ( Fig. 44 View Figs ). Hump on scutellum high or absent. Humeral angles widely rounded; pronotum and scutellum medially without longitudinal callose line ( Figs. 9-11, 13 View Figs ). ...................................................................................................... 6
6 Pygophore with ventral wall gradually merging into ventral rim infolding, neither of them deeply depressed subapically at base of posterolateral angles; lateral rim of posterolateral angles wider ( Figs. 41-42 View Figs ); lateral rim infolding dorsally with semi-circular projection ( Fig. 42 View Figs , red arrow). Paramere as in Fig. 48 View Figs . Scutellum usually without a dorsal hump, more rarely with a high one ( Figs. 64-66 View Figs ). Auricle slightly larger, less than twice as long as ostiole wide ( Fig. 20 View Figs ). Body length JJ 5.0-5.4 mm, ♀♀ 5.4-6.0 mm. ....................... ....................................................................................... T. dubius Jensen-Haarup , 19311)
– Pygophore with ventral wall gradually merging into ventral rim infolding, both deeply depressed subapically at base of posterolateral angles; lateral rim of posterolateral angles narrower ( Figs. 44-45 View Figs ); lateral rim infolding dorsally with tooth-shaped projection ( Fig. 45 View Figs , red arrow). Paramere as in Fig. 50 View Figs . Scutellum always with high dorsal hump ( Fig. 74 View Figs ). Auricle very small, about as long as ostiole wide ( Fig. 22 View Figs ). Body length JJ 6.0 mm, ♀♀ 6.3-7.1 mm. .............................................................. T. quadraticeps Horváth, 1904
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