Crotonothrips polyalthiae, A.Mound & Nasruddin, 2012

A. Mound, Laurence & Nasruddin, Andi, 2012, Crotonothrips polyalthiae sp. n. (Thysanoptera: Phlaeothripidae), a leaf-galling pest of the Asian amenity tree, Polyalthia longifolia, Zootaxa 3262, pp. 62-68 : 62-68

Crotonothrips polyalthiae sp.n.

Male macroptera. Body and legs dark brown, fore tarsi and apex of fore tibiae yellow; antennal segments I and VII–VIII brown, II yellow at apex, III almost clear yellow but weakly shaded at apex, IV–VI yellow on basal twothirds, half or third respectively; fore wing extensively shaded, paler at apex, clear near base around sub-basal setae, and with a longitudinal pale line close to posterior margin ( Fig. 11). Antennae 8-segmented, III with 1 sensorium, IV with 3 +1 sensoria, VIII very weakly constricted at base ( Fig. 7). Head dorsally slightly longer than wide, not projecting in front of eyes, cheeks weakly convex with weak setae ( Fig. 6); dorsal surface transversely reticulate with prominent postoccipital flange; eyes slightly larger dorsally than ventrally; postocular setae long and slender with apices softly rounded; maxillary stylets close together medially, retracted to posterior margin of eyes; head elongate ventrally ( Fig. 8), mouth cone pointed, extending between fore coxae; mandible restricted to mouth cone. Pronotum weakly reticulate but median area smooth, with strong median longitudinal apodeme; midlateral pair of setae arise in posterior position near to notopleural sutures ( Fig. 9); mid-lateral and epimeral setae, long, slender with softly rounded apices; anteroangular and posteroangular setae shorter and variable in length; anteromarginal setae no larger than discal setae. Fore femora swollen, fore tibiae slightly curved, fore tarsal tooth stout ( Fig. 5). Prosternal basantra not developed, chitinous islets large; ferna large, mesopraesternum incomplete medially ( Fig. 8). Mesonotum reticulate, lateral setae small. Metanotum longitudinally reticulate on anterior half ( Fig. 10), median setae small and slender; metathoracic sternopleural sutures sharply recurved ( Fig. 8). Fore wing parallel-sided ( Fig. 11), with about 25 duplicated cilia; sub-basal setae long with apices softly rounded to weakly capitate. Pelta irregular, broadly triangular with apex truncate or rounded, paired campaniform sensilla present ( Fig. 10); tergites II–VII each with 2 pairs of sigmoid setae; tergite IX setae finely pointed, S2 short and stout; anal setae shorter than tube. Sternite VIII with large pore plate.

Measurements of holotype male in microns. Body length 2750. Head, dorsal length 230; width 200; ventral length to base of mouth cone 300; ventral length to apex of mouth cone 520; postocular setae 115. Pronotum, length 290; width 380; major setae, am 15; aa 50 (70); ml 130; epim 155; pa 45 (55). Fore wing, length 1050; median width 90; sub-basal setae 55, 75, 80. Tergite IV, posteromarginal setae 175; posteroangular setae 75. Tergite IX setae, S1 240; S2 60; S3 265. Tube, length 255; longest anal setae 175. Antennal segments III–VIII length 93, 90, 85, 80, 63, 35.

Female macroptera. Similar to male in colour and structure except: fore femora more slender, fore tarsal tooth smaller; pronotal am and pa setae longer, ml setae shorter; pronotal median longitudinal apodeme weak; tergite IX setae S2 as long as S1 and S3.

Measurements of large and small paratype females in microns. Body length 3150 (2500). Head, dorsal length 240 (175); width 220 (200); ventral length to base of mouth cone 300; ventral length to apex of mouth cone 520 (450); postocular setae 110 (15). Pronotum, length 250 (170); width 380 (300); major setae, am 35 (25); aa 50 (33); ml 85 (15); epim 160 (90); pa 75 (50). Fore wing, length 1050 (900); median width 110; sub-basal setae 60, 85, 85. Tergite IV, posteromarginal setae 165 (125); posteroangular setae 85 (55). Tergite IX setae, S1 240 (200); S2 225 (75); S3 240 (180). Tube, length 270 (225). Antennal segments III–VIII length 90, 90, 83, 70, 60, 35 (80, 75, 70, 68, 60, 33).

Larvae. Body with bright red internal pigments, and two transverse white bands (Fig. 3); antennae, legs, head, and abdominal segments IX–X dark brown.

Material studied. Holotype male, Indonesia, Makassar, Tamalanrea, in leaf gall of Polyalthia longifolia (Annonaceae) , 7.vii.2010 (A. Nasruddin), in The Natural History Museum, London.

Paratypes: Indonesia, 4 males, 10 females taken with holotype and larvae; 21 females 2 males with similar data except, 22.xii.2011 . Malaysia, University of Kuala Lumpur, 6 males, 1 female with larvae and pupae in leaf gall of Polyalthia longifolia , 3.vii.2006 (LAM 4903); Kuala Lumpur, Ampang, 3 males, 3 females with larvae and pupae in leaf galls of P. longifolia , 4.iii.2007 (LAM 5021) . Paratypes deposited in: Bogor Zoological Museum- LIPI, Indonesia; Centre for Insect Systematics, Universiti Kebangsaan Malaysia; Natural History Museum, London; Australian National Insect Collection, Canberra .