Caliothrips punctipennis (Hood)

Lima, Élison Fabrício Bezerra, O’Donnell, Cheryle Ann, Miyasato, Elisa Aiko & Br, Pi., 2020, The Panchaetothripinae (Thysanoptera, Thripidae) of Brazil, with one new Caliothrips species, Zootaxa 4820 (2), pp. 201-230 : 212-213

Caliothrips punctipennis (Hood)

( Figs 12 , 38, 49 , 84, 85 , 100 )

Heliothrips punctipennis Hood, 1912: 135 .

Heliothrips marginipennis Hood, 1912: 135 syn. n.

The synonymy given above is based on the examination of type specimens and additional material deposited in USNM, ANIC and CHNUFPI. Caliothrips punctipennis is commonly collected from grasses, and has the fore wings extensively pale. It has been considered to have brown pigmentation only on the veinal fork and fore wing apex, whereas C. marginipennis was considered to exhibit additional brown pigmentation posteriorly on the fore wing. Examination of specimens collected in various parts of the world, however, revealed that the extent of brown fore wing pigmentation is variable both within and between populations.

Specimens collected in the State of Acre ( Brazil) and Texas ( USA) match C. punctipennis except for the wing color brown only at apex, whereas Acrean specimens have legs and tergites slightly different from C. punctipennis type series ( Figs. 85 , 100 ). Additional individuals deposited in ANIC collected from grasses in the State of Pernambuco ( Brazil), Japan and Thailand also display wing color variation, with fore wing fork of veins from extensively dark to scarcely visible. Moreover, specimens including the types identified as C. marginipennis have this same intraspecific variation in color on the fore wings ( Figs. 12 , 84 ). Finally, Heliothrips bishoppi Moulton and Heliothrips bromi Moulton , are junior synonyms of C. marginipennis , and the first one was originally described as similar to C. punctipennis based on the characters previously discussed. These variations are, therefore, considered to be intraspecific.

The two named species under discussion herein were published by Hood (1912) in the same paper, although the author did not compare C. marginipennis with C. punctipennis . As the characters used to describe the species seem to vary, as discussed above, we suggest their synonymization. Following recomendation 24A of ICZN, the name chosen herein to be the senior synonym is Caliothrips punctipennis (Hood) because (i) the type series is more numerous and covers two countries ( Mexico and USA); (ii) records in literature are more numerous using that name; and (iii) the name has page priority in Hood (1912).

Character states of this variable species include antennal segments III–IV with apical half brown and V pale with light brown apex; extra simple sense cone on antennal segment IV sometimes extending to mid of segment V to apex of VI ( Fig. 38 ). Abdominal tergites reticulate (either transverse or longitudinal) on lateral two thirds with internal markings, III–VIII with faint or no reticulation medially ( Fig. 100 ), and pleurotergites with longitudinal striations. Males have transverse pore plates on sternites III–VII.

NEW RECORD. Brazil. Acre: Rio Branco , 3 females on bamboo leaves, 25.vii.2019, (E.F.B.Lima and E.A.Miyasato) (CHNUFPI).

Figures

FIGURES 2–17. Panchaetothripinae species habitus (female, except where noted): (2) Anisopilothrips venustulus; (3) Arachisothrips millsi; (4) Bradinothrips williamsi; (5) Bradinothrips williamsi (male); (6) Brachyurothrips anomalus; (7) Brachyurothrips anomalus (male); (8) Caliothrips cangaceiro sp. n.; (9) Caliothrips cangaceiro sp. n. (male); (10) Caliothrips nanus; (11) Caliothrips phaseoli; (12) Caliothrips punctipennis; (13) Caliothrips insularis; (14) Dinurothrips hookeri; (15) Dinurothrips vezenyii (macropterous); (16) Dinurothrips vezenyii (micropterous); (17) Elixothrips brevisetis.

FIGURES 34–51. Panchaetothripinae species. Antenna 34–47: (34) Arachisothrips millsi; (35) Brachyurothrips anomalus; (36) Bradinothrips williamsi; (37) Caliothrips cangaceiro sp. n.; (38) Caliothrips punctipennis; (39) Dinurothrips vezenyii; (40) Elixothrips brevisetis; (41) Heliothrips haemorrhoidalis; (42) Heliothrips longisensibilis; (43) Heliothrips similis; (44) Heliothrips zucchi; (45) Hoodothrips constrictus; (46) Hoodothrips lineatus; (47) Selenothrips rubrocinctus; (48) Brachyurothrips anomalus (head); (49) Caliothrips punctipennis (head and thorax); head and pronotum 50–51: (50) Caliothrips phaseoli; (51) Caliothrips nanus.

FIGURES 77–91. Panchaetothripinae species. Meso- and metanotum 77–79: (77) Hoodothrips brevipilus; (78) Hoodothrips constrictus; (79) Hoodothrips lineatus. Fore wing 80–91: (80) Caliothrips fasciatus; (81) Caliothrips insularis; (82) Caliothrips nanus; (83) Caliothrips phaseoli; (84) Caliothrips punctipennis (darker wing); (85) Caliothrips punctipennis (clear wing); (86) Hercinothrips bicinctus; (87) Hercinothrips femoralis; (88) Hoodothrips constrictus; (89) Hoodothrips lineatus; (90) Parthenothrips dracaenae; (91) Retithrips syriacus.

FIGURES 92–106. Panchaetothripinae species. Fore wing: (92) Selenothrips rubrocinctus. Fore tarsus 93–95: (93) Dinurothrips hookeri; (94) Dinurothrips vezenyii; (95) Hercinothrips femoralis. Hind coxa: (96) Caliothrips phaseoli. Abdominal tergites 97–106: (97) Brachyurothrips anomalus (VI–X); (98) Caliothrips fasciatus (IV–V); (99) Caliothrips insularis (III–VI); (100) Caliothrips punctipennis; (101) Caliothrips nanus (I–VI); (102) Caliothrips cangaceiro sp. n. (II–VI); (103) Dinurothrips hookeri (VIII–X); (104) Dinurothrips vezenyii (II–III); (105) Elixothrips brevisetis (I–III); (106) Elixothrips brevisetis (X).