Dolichothrips reuteri (Karny)

Mound, Laurence A. & Minaei, Kambiz, 2007, Australian thrips of the Haplothrips lineage (Insecta: Thysanoptera), Journal of Natural History 41 (45 - 48), pp. 2919-2978 : 2938-2939

Dolichothrips reuteri (Karny)

Liothrips reuteri Karny 1920, p 40 .

Reported to be based originally on a single female collected at ‘‘Cedar Creek’’ Queensland (deposited in the Museum at Stockholm), a second female with identical data is present in the collections of the Senckenberg Museum, Frankfurt. This dark brown species with bright yellow tibiae has been collected more recently in considerable numbers at Paluma and Cape Tribulation in northern Queensland, and also around Darwin in Northern Territory. At these localities it was found in the apical buds of both Macaranga tanarius and Hibiscus tiliaceus , two plants that grow commonly along the shore. None of the available specimens has additional sigmoid setae on the abdominal tergites.

Dyothrips Kudo

Haplothrips (Dyothrips) Kudo 1974, p 114 . Type species: Haplothrips (Trybomiella) cingulatus Pelikan , now considered a synonym of Zygothrips pallescens Hood.

Although considered a genus by Bhatti (1995), the phylogenetic position of the single species involved possibly lies within the genus Haplothrips . It differs from the species in that genus in having the prothoracic notopleural sutures incomplete ( Figure 2 ). The statement by Bhatti (1995) that it also differs in having a complete mesopresternum is incorrect, because this character state occurs in H. aculeatus , the type species of Haplothrips , as well as several other members of the genus. Although stated by Kudo to have a long mouth cone, the apparent length of this structure depends largely on slide-mounting procedures, because the mouth cone is directed ventrally in life and can rotate posteriorly under coverslip pressure. Despite the lack of duplicated wing cilia, the relationships of Dyothrips probably do not involve Trybomiella , but the genus is retained here until such time as molecular data become available.

Dyothrips pallescens Hood

Zygothrips pallescens Hood 1919, p 78 .

Described originally from Queensland, and subsequently from China, the synonyms of this species are listed by Pitkin (1973). It is now recorded from Australia, Bangladesh, China, Fiji, India, Pakistan, Thailand, Taiwan, and Japan ( Okajima 2006), and also New Caledonia ( Bournier and Mound 2000). A grass-living species, specimens have been seen in Australia from coastal regions between Brisbane and Cairns, and also around Darwin.

Recognition

Macropterous and distinctively bicoloured; body light brown with metathorax and first abdominal segment yellow, antennal segments III–VI yellow, also all tarsi and apices of tibiae; wing pale. Head longer than wide, antennal segment III with one sensorium, IV with four; postocular setae capitate, also all five pronotal setae and tergite IX S1 and S2; fore tarsal tooth not present in either sex; prothoracic notopleural sutures incomplete.

Figures

Figures 1–15. (1) Bagnalliella nigricoxae, holotype. (2) Dyothrips pallescens, pronotum. (3) Dolichothrips reuteri, mouth cone. (4) Androthrips monsterae, fore femora. (5) Priesneria peronis, antenna. (6) Karnyothrips melaleucus, head, pronotum, and fore legs. (7) Euoplothrips bagnalli, fore legs of small and large males. (8) Mesothrips jordani, head. (9) Haplothrips acaciae, head and pronotum. (10) H. anceps, head, pronotum, and right fore leg. (11) H. acaciae, pelta. (12) H. anceps pelta. (13) H. angusi pelta. (14) H. avius, head. (15) H. angusi, prosternites.