Valid Names Results

Lachnodius lectularius Maskell, 1896 (Eriococcidae: Lachnodius)

Nomenclatural History

• Lachnodius lectularius Maskell 1896b: 400-402. Type data: AUSTRALIA: Victoria, on Eucalyptus rostrata, by C. French. Syntypes, female, Type depository: Canberra: Australian National Insect Collection, CSIRO Entomology, Australia; accepted valid name Notes: Lectotype designated in Hardy, et al., 2019: Victoria: adult female: on slide labelled: “Lachnodius / Dactylopius / lectularius / adult female / 1895 W.M.M.” (ANIC). Paralectotypes: Victoria: five slides: adult female mouth parts, adult female posterior body and antennae, one second-instar female, and two first-instar nymphs: same label data as lectotype (NZAC); eleven adult females, on six slides prepared and labelled by JW Beardsley from Maskell dry material: “VICTORIA / Mooroopna / Goulburn Riv./ ?1896 / W. W. Froggatt [SIC] / Eucalyptus / rostrata in / twig depression” (NZAC); one adult female, on slide labelled: “Lachnodius / lectularius / Mask. / Australia / Mask. Coll. No. 453” (USNM). Note that JWB made an error in writing the collector as “W.W. Froggatt”, as the original specimens were collected by C. French. Also, the dry material that JWB mounted did not bear the collection data that he put on his slide labels, but was added by JWB based on the data cited in Froggatt’s original description. (Hardy, 2019) Illustr.

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 2

Geographic Distribution

Keys

• HardyBeGu2019: pp.50-51 ( Adult (F) ) [Species of Lachnodius]

Remarks

• Systematics: Slide-mounted adult female with: marginal fringe of setae slightly conical; antennae 7-segmented; legs well developed, tibia and tarsi with enlarged setae on inner margin; anal ring ventral, with pores and 10 to 15 setae; tubular ducts without cup-like structure; multilocular pores abundant over venter (Beardsley, 1982a). Only one of the original Maskell slides contains an entire adult female. J.W. Beardsley labelled that specimen as the lectotype in 1972 but this action was not published until Hardy, et all., 2019.
• Structure: Adult female dark red or reddish brown, elliptical, very convex, but distinctly segmented. Female of the second stage yellow or yellowish brown, elliptical, convex. First-instar nymphs are yellow, subcircular or broadly elliptical, slightly tapering posteriorly (Maskell, 1896b). Adult females feed in a pit in a swollen stem or bud of the host eucalypt. The body color is variable; it is green with a red longitudinal stripe on the dorsum of younger females and fully orange or red to brown in older females. In life, females can lift up their abdomen and expose their venter. Each seta forming the marginal fringe surrounding the dorsum is covered in a glassy secretion. The galls of developing young females of L. lectularius are located on succulent young twigs and buds rather than on leaves. The gall of adult female does not cover any of dorsum; adult female with marginal fringe of close-set setae; one size class of dorsal macrotubular ducts. (Hardy, et al., 2019)
• General Remarks: Original description and illustration by Maskell (1896b); useful short description by Beardsley (1982a). Redescription and illustration in Hardy, et al., 2019.

Illustrations

Citations