Frankliniella bispinosa (Morgan)

Skarlinsky, Thomas & Funderburk, Joe, 2016, A key to some Frankliniella (Thysanoptera: Thripidae) larvae found in Florida with descriptions of the first instar of select species, Florida Entomologist 99 (3), pp. 463-470 : 465

Frankliniella bispinosa (Morgan) ( Figs. 2A–C , 3A )

DESCRIPTION, LARVA II

Head with the D1–D4 setae apically pointed ( Fig. 2A ); D1 setae 10–13 µm long; D2 21–25 µm long; D3 17–20 µm long, and D4 23–30 µm long. Pronotal setae apically pointed ( Fig. 2B ). Meso- and metanotal setae with a combination of broadly pointed to apically acute setae ( Fig. 2C ). The abdominal tergal setae are apically blunt and appear as if the tips were trimmed by scissors. Abdominal plaques tergites II–VI with some developed microtrichia anteromedially of the D1 setae; most plaques anterolateral of the D1 setae with developed microtrichia. Tergite VII plaques anterior of the dorsal setae with well-developed microtrichia and those posterior of the setae rounded. Nearly all plaques on tergite VIII with long finely pointed microtrichia. Tergite IX with a dark band in which the anterior margin extends anteriorly about the diameter of a D1 setal socket. The posteromarginal teeth tergite IX are longer than the basal width of the D1 setae; approximately 12–15 teeth are present between the D2 setae. Ventral posteromarginal teeth tergum IX are minute, about 1/3 the size of the dorsal teeth. Tergite X with a dark band that extends to the campaniform sensilla of the tergite.

DESCRIPTION, LARVA I

Head with the D1–D4 setae apically pointed. Pro-, meso-, and metanotal setae with both apically blunt and broadly pointed setae. Meso- and metanotal plaques, anterior to the posteromarginal row of major setae with rounded microtrichia and those posterior of the setal row without microtrichia. Abdominal segments I–VIII tergal plaques with microtrichia. Approximately 12 thin posteromarginal sclerotized teeth between the D2 setae. Usually, 1–5 small sclerotized teeth lie within the dark band between the D1 setae of the tergite ( Fig. 1B ). Terga IX and X with dark bands similar to the larva II.

Figures

Fig. 2. Larva II of F. bispinosa: dorsal setae pairs, D1–D4 of head (A); dorsal setae pairs, D1–D7 of pronotum (B); dorsal setae pairs, D1–D8 of mesonotum (C); scale = 25 µm.

Fig. 3. Abdominal tergites VIII and IX of larvae II: dorsal setae, D1, D2 of tergites VIII and IX F. bispinosa (A); F.cephalica (B); F.insularis (C); F. kelliae (D); F.occidentalis (E); F. schultzei (F); F. fusca (G); scale = 25 µm.

Fig. 1. Larva I of F. kelliae: dorsal setae pairs, D1–D6 of pronotum and D1–D5 of mesonotum (A); arrow indicates small sclerotized teeth between D1 setae of abdominal tergite IX (B); scale = 25 µm.