Valid Names Results

Bambusaspis transversa Lagowska & Martin, 2015 (Asterolecaniidae: Bambusaspis)

Nomenclatural History

• Bambusaspis transversa Lagowska & Martin 2015: 128-142. Type data: WEST MALAYSIA: Negeri Sembilan. Senawang, on Bambusa tuldoides (Poaceae), 3/?/2011, by J.H. Martin. Holotype, female, male, and first instar, by original designation Type depository: London: The Natural History Museum, England, UK; Paris: Museum National d'Histoire naturelle, France; Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Notes: Paratypes: 35 slides with 24 adult females; 27 first-instar nymphs; 12 second-instar female; 21 second-instar males; 4 prepupae; 8 pupae and 12 adult males (mainly good-to-fair condition), same bamboo thicket as holotype, dates between November 2010 and March 2012 (BMNH, USNM, MNHN) Illustr.

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• Hodgso2020: pp.181-182 ( Adult (M) ) [Asterolecaniidae]

Remarks

• Systematics: Adult females of B. transversa, are rather similar to those of B. rubrocomata (Russell), currently only known from Sri Lanka, also collected on a species of Bambusa, and to B. nanlinnatalis Zhang (Zhang 1992), collected on Indocalamus sp. (Poaceae, tribe Bambuseae), Shexian County, China. The adult females of all three species have 8-shaped pores in a dorsal submarginal row and commonly in a group or in transverse rows medially. B. transversa differs from B. rubrocomata in having (character-states on B. rubrocomata in brackets): (i) a radial group of 10–25 quinquelocular pores between margin and antennae (absent); (ii) abundant quinquelocular pores in broad stigmatic bands, each with 55–100+ pores in bands 7–9 pores wide (18–29 pores in a single or irregularly double row); (iii) only 5–8 multilocular pores around genital opening (45–61 in 4 complete and 4 or 5 interrupted rows), and (iv) in lacking leg stubs or claws (present). Adult females of B. transversa also resemble those of B. nanlinnatalis in having few multilocular pores around the vulva, but differ in having (character-states for B. nanlinnatalis in brackets): (i) the submedial 8-shaped pores present in fairly distinct transverse bands (quite abundant but rather randomly distributed), and (ii) abundant (55–90+) quinquelocular pores in each stigmatic band (38–55 pores only). Adult females of B. transversa are also similar to those of B. coronata (Green) and B. larga (Russell), but mainly differ from both in having the following combination of character-states: (i) an oval body shape; (ii) 8 shaped pores in transverse bands; (iii) the large number of 5-locular pores in each stigmatic band; and (iv) the small number of multilocular pores around genital opening. The adult male is very similar to other asterolecanid males, differing mainly in the absence of long setae on the penial sheath. (Hodgson, 2020)
• Structure: Adult female elongate oval. Dried material pale brown but live specimens almost certainly pale green. Dorsum with a median band of very long glassy wax filaments plus a few shorter ones elsewhere. Margin with a rim of white wax filaments. Remainder of dorsum covered in a glassy test. (Lagowska, et al., 2015) The main character-states that appear to diagnose the adult female of B. transversa are: (i) the transverse lines or bands of large 8-shaped pores medially on the dorsum; (ii) the sparse submarginal line or band of large 8-shaped pores on the dorsum; (iii) almost complete marginal line of smaller 8-shaped pores; (iv) the presence of minute 8-shaped pores on the dorsum; (v) the radial band of quinquelocular pores extending from each antenna to the margin; (vi) the very broad stigmatic bands, each with perhaps 100+ quinquelocular pores; (vii) the relatively few multilocular disc-pores around the vulva; (viii) the four pairs of setae on the apex of the abdomen; (ix) the very broad band of ventral microducts, and (x) the six anal ring setae. The main character-states that appear to diagnose the first-instar nymph of B. transversa are: (i) the two medial lines of 10 large 8-shaped pores; (ii) the marginal line of 13 large 8-shaped pores on each side; (iii) the submedial line of simple pores on the dorsum; (iv) the three pairs of setae on the apex of the abdomen; (v) each stigmatic band with one quinquelocular and one trilocular disc-pore; (vi) labium with two pairs of setae; (vii) each antenna with setae on all segments bar segment III; and (vii) two pairs of interantennal setae. Superficially, second-instar male and second-instar female nymphs are similar because their pore distribution is much the same. However, they differ as follows (character-states for second-instar females in brackets): (i) dorsal tubular ducts frequent throughout dorsum (absent); (ii) a few 8-shaped pores present submedially on dorsum (absent); and (iii) leg stubs present (absent). In addition, second-instar males are slightly larger and appear broadest across the prothorax whereas the second-instar females are broadest about the metathorax. Adult males of Bambusaspis can be easily separated from all others except Hsuia cheni by: (i) presence of exceptionally long antennal bristles on several antennal segments (otherwise absent), and (ii) in having 10-segmented antennae (9-segmented on the other species). The adult males of the three Bambusaspis species can be separated by the distribution of the long antennal bristles: B. delicata on segments V, VII, VIII, IX and X; B. longa on segments IV, VII and X, and B. transversa on segments VII, IX and X. (Lagowska, et al., 2015)
• General Remarks: Detailed description and illustrations of all developmental stages in Lagowska, et al., 2015.

Illustrations

Citations