Caliothrips chiapas, Mound, Laurence & Infante, Francisco, 2017

Mound, Laurence & Infante, Francisco, 2017, Relationships among Caliothrips species (Thysanoptera: Panchaetothripinae) with one new species from Mexico, Zootaxa 4291 (2), pp. 384-390 : 385-386

Caliothrips chiapas sp.n.

Female macroptera: Dark brown, tarsi yellow also base and apex of all tibiae; antennae brown with segments III– V yellow on basal half and III–IV with apical neck pale ( Fig. 10 ); fore wings deeply shaded ( Fig. 4 ), with small, sub-basal, oval pale area between veinal setae II and III, a transverse paler band between second vein setae I and III, and a brighter and large pale transverse band sub-apically that is usually longer than the apical dark area; veinal setae dark brown, but one seta pale on median and also sub-apical pale bands; clavus uniformly dark. The extent of the pale bands, and the colour intensity of the basal dark area on the fore wing, vary among the type series.

Antennae 8-segmented, III–IV each with an apical neck ( Fig. 10 ) and stout forked sense cone, IV with one simple sense cone dorsally extending to mid-point of V; segment VI with simple dorsal sense cone extending beyond mid-point of VIII. Head typical of genus, reticulations with many internal markings ( Fig. 6 ). Pronotal reticulations longitudinally elongate on anterior median third, but equiangular on posterior third. Metanotum longitudinally reticulate with many internal markings. Fore wing costa with about 17 setae ( Fig. 4 ), setae IV–VI particularly stout; first vein with 5 setae basally (IV–V stout) and one seta near wing apex; second vein with 6 (or 7) setae of which two are pale. Tergites I–II with small area of reticulation medially, but remaining tergites with no sculpture medially; tergite II lateral thirds with narrow transverse striations, on III–V these striations become progressively more reticulate and this varies among individuals ( Fig. 9 ), VI–VII with reticulate sculpture laterally; posterior margin of tergites with broad craspedum that is toothed laterally; X with median split on distal third. Sternites with broad craspedum, II–VII with 3 pairs of marginal setae, pair III usually arising in front of margin.

Measurements (holotype female in microns): Body length 1050. Head, length 60; width 135. Pronotum, length 80; width 180. Fore wing length 650. Tergite IX setae length, S1 45; S2 70. Antennal segments III–VIII length 40, 38, 35, 25, 10, 25.

Male macroptera: Body smaller, colour similar to female, but fore wing paler at base and median pale area slightly larger and paler. Sculpture on tergal lateral thirds similarly grading on II–VII from linear transverse to reticulate. Tergite IX with 3 pairs of dorsal setae, antero-median pair stout and thorn-like ( Fig. 7 ). Sternites III–VII each with transverse pore plate ( Fig. 8 ).

Specimens studied. Holotype female, MEXICO , Chiapas State , Frontera Hidalgo, Canton Texcaltic, 4.iv.2014 (F. Infante) in United States National Museum , Washington .

Paratypes: 28 females 18 males taken from same locality and plant as holotype ; paratypes deposited in the entomological collection of ECOSUR ( Tapachula , Chiapas , Mexico), also in USNM , Washington, The Natural History Museum, London, The Senckenberg Museum, Frankfurt, and the Australian National Insect Collection, Canberra.

Figures

FIGURES 9 – 15. Caliothrips species. (9) C. chiapas, female tergites I – IV; (10) C. chiapas, antenna; (11) C. chiapas, male tergites I – III; (12) C. phaseoli, female tergites II – IV; (13) C. fasciatus, female tergites IV – V; (14) C. impurus, female tergites IV – V; (15) C. tongi, female tergites IV – V.

FIGURES 4 – 8. Caliothrips species. (4) C. chiapas, wing colour variants; (5) C. phaseoli, wing colour variants; (6) C. chiapas, head & pronotum; (7) C. chiapas, male tergites VII – X; (8) C. chiapas, male sternites IV – VII.