Minutaleyrodes andamanensis, Dubey, 2020

Dubey, Anil Kumar, 2020, Revision of the genus Minutaleyrodes Jesudasan and David (Hemiptera: Aleyrodidae) with descriptions of two new species from the Little Andaman Island, India, Zootaxa 4748 (2), pp. 315-333 : 318-322

publication ID

https://doi.org/ 10.11646/zootaxa.4748.2.5

publication LSID

lsid:zoobank.org:pub:A1274383-553B-4311-8F18-799505BA0201

DOI

https://doi.org/10.5281/zenodo.3705574

persistent identifier

https://treatment.plazi.org/id/03C4553C-A97B-FFA7-FF56-21FCFDE23EB4

treatment provided by

Plazi

scientific name

Minutaleyrodes andamanensis
status

sp. nov.

Minutaleyrodes andamanensis sp. nov.

( Figs 2, 3 View FIGURE 2–5 , 6–23 View FIGURES 6–8 View FIGURES 9–15 View FIGURES 16–23 )

Puparium. In life, white, silver shiny, wax deposited at anterior end, cephalic and metathoracic region, median and broader abdominal area ( Fig. 2 View FIGURE 2–5 ); constricted from prothoracic region to cephalic margin and from abdominal segment VII to caudal margin ( Figs 3 View FIGURE 2–5 , 6 View FIGURES 6–8 , 9 View FIGURES 9–15 ); female puparia 600–650 µm long, 450–520 µm wide; male puparia 560–580 µm long, 425–450 µm wide; found singly, on lower surface of leaves; only one puparium found per leaf.

Margin. Smooth ( Figs 7 View FIGURES 6–8 , 14 View FIGURES 9–15 ); thoracic tracheal pore indicated as small C-shaped invagination, caudal tracheal pore deeply invaginated.

Dorsum. Submargin with a row of conical papillae, prominent on cephalic and abdominal submargin ( Figs 7 View FIGURES 6–8 , 12, 13 View FIGURES 9–15 ), papillae slightly broader on abdomen. Row of 7 pairs of minute setae on submargin: 2 pairs on prothorax, 1 pair on metathorax, 1 pair on each abdominal segment II and VII, and 2 pairs on caudal area. The shape of these setae varies considerably, being capitate or blunt or swollen (deformed) in middle ( Figs 17–20 View FIGURES 16–23 ). Longitudinal moulting suture reaching margin and transverse moulting suture reaching submedian area. Cephalus and metathorax each with 1 pair of enlarged tubercles present submedially ( Figs 3 View FIGURE 2–5 , 10 View FIGURES 9–15 ), distorted when slide-mounted and appearing as if composed of concentric loops ( Fig. 3 View FIGURE 2–5 ). Microtubercles present in small groups on submedian area of prothorax, mesothorax and abdominal segments I–VII ( Fig. 10 View FIGURES 9–15 ), and transverse groups on the posterior margin of the abdominal segment sutures ( Figs 9, 10 View FIGURES 9–15 ). Cephalothorax medially longer than the abdomen; female cephalothorax and abdomen 310–325 µm and 300–325 µm long, respectively; male cephalothorax and abdomen 295–300 µm and 265–275 µm, respectively. Abdominal segments I–VIII median length (A1–A8): A1: 32–33, A2: 27–28, A3: 25–26, A4: 25–26, A5: 25–26, A6: 25–26, A7: 22–23, A8: 27 µm. Median tubercles present on abdominal segments, prominent on segments III–VI ( Fig. 10 View FIGURES 9–15 ). Thoracic tracheal furrows absent; caudal tracheal furrow present; caudal ridges strongly rugose, terminating at submargin, apically with 1 pair of submarginal caudal setae ( Fig. 11 View FIGURES 9–15 ), furrow 37–43 µm long. Geminate pores present ( Fig. 16 View FIGURES 16–23 ); pore-porette centers separated by width of large pore ( Fig. 16 View FIGURES 16–23 ).

Vasiform orifice. Elongate-subcordate ( Fig. 15 View FIGURES 9–15 ); posterior end open, orifice floor with numerous finger-like microtrichia ( Figs 8 View FIGURES 6–8 , 15 View FIGURES 9–15 ); 35–43 µm long, 35–38 µm wide in female; 30–37 µm long, 35–37 µm wide in male; operculum sub-quadrate, apically blunt (= apical border straight), apical margin with tuft of microtrichia, almost covering the orifice (sub-occludes orifice) ( Figs 8 View FIGURES 6–8 , 15 View FIGURES 9–15 ), 25–30 µm long, 27–30 µm wide in female; 22–28 µm long, 22–25 µm wide in male.

Venter. Smooth ( Fig. 21 View FIGURES 16–23 ), granular on subventral area; submarginal area not differentiated by a fold, submarginal area with a series of small lines ( Figs 22, 23 View FIGURES 16–23 ). Submargin indicated by linear striations perpendicular to margin, submarginal fold absent. Thoracic ( Fig. 22 View FIGURES 16–23 ) and caudal tracheal folds indicated with fine granules; 1 pair of ventral abdominal setae present. Adhesive sacs and spiracles present.

Chaetotaxy. Cephalic setae present on large tubercle, 7 µm long. Eighth abdominal setae anterior to the base of vasiform orifice, apically blunt or slightly capitate, 7 µm long. Caudal setae on caudal ridge, 9 µm long. First abdominal setae absent. Submargin with 7 pairs of minute setae, 7–9 µm long.

Material examined: Holotype, India: Andaman and Nicobar Islands, Little Andaman, Whisper waterfall trail, one puparium on slide, on Aporosa octandra , 13.ix.2018, A.K. Dubey ( ZSI).

Paratypes. Six puparia on six slides, data same as of holotype ( NFIC-FRI 1 ) .

Host plant. Phyllanthaceae : Aporosa octandra (Buch.-Ham. Ex D. Don) Vickery.

Etymology. The new species is named after the collection locality in Andaman Islands, Little Andaman.

Distribution. India: Andaman and Nicobar Islands, Little Andaman.

Remarks. The pronounced marginal constriction in the thoracic and posterior abdominal areas, greatly enlarged cephalic tubercles, submarginal row of setae, submarginal papillae and ventral surface of the vasiform orifice invested with elongate microtrichia, and ventral submarginal striations, distinguish this species from all other Minutaleyrodes species ( Fig. 23 View FIGURES 16–23 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Aleyrodidae

Genus

Minutaleyrodes

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