Neosteingelia texana Morrison, 1927

Hodgson, Chris & Foldi, Imre, 2006, A review of the Margarodidae sensu Morrison (Hemiptera: Coccoidea) and some related taxa based on the morphology of adult males, Zootaxa 1263 (1), pp. 1-250 : 1-250

publication ID

https://doi.org/ 10.11646/zootaxa.1263.1.1

publication LSID

lsid:zoobank.org:pub:6835F092-2827-4F39-A7FC-68BF42D6DCE0

DOI

https://doi.org/10.5281/zenodo.5067305

persistent identifier

https://treatment.plazi.org/id/267587D7-FFB5-820D-7A61-7D0BDE3EF8DB

treatment provided by

Felipe

scientific name

Neosteingelia texana Morrison
status

 

Neosteingelia texana Morrison View in CoL

(Fig. 18)

Neosteingelia texana Morrison, 1927: 101 View in CoL .

Material studied

USA, Texas, San Antonio , on hackleberry, 18th Sept. 1917, H.G.H. Weinert ( USNM): 3/5ad ♂♂, part of type material (in fair to poor condition, only one specimen stained; no metathoracic legs complete; only one complete antenna and all wings somewhat damaged and folded). Also : USA, Virginia, Blacksburg, Virginia Polytechnic Institute , base of Carya ovata , 29.ix.1990, I. Foldi ( MNHN): 2/2ad ♂♂ (labelled Neosteingelia texana , collected while copulating; in fair to poor condition; both wings missing off one specimen, and most legs showing some distortion. There are slight signs that one specimen may have been over­treated with KOH as some features are hard to determine) .

[Note: the data below refers to both lots of material unless otherwise stated; when different, data in square brackets refers to material from Virginia.]

Mounted material

Large, 1.8 [1.95–2.25] mm long; width across prealare 425 [470–570] µm. Body setae extremely few, mainly short and hair­like (hs), most about 10–20µm long, with normal shallow basal sockets; collared setae (cs), hairs (hrs), loculate pores (lp) and large convex pores (cp) all absent. Antennae long, flagellar segments all quite narrow, parallel­sided, becoming slightly shorter near apex; some basal segments with a few satellite setae (sats) in addition to normal setae. Legs well developed but with few setae, tibia with few spurlike setae, none bifurcated; tarsi clearly 2 segmented [possibly only 1 segmented]; claws with a small denticle [absent]; claw digitules setose. Abdominal segment I thought to be absent ventrally [possibly present]; abdomen without lateral caudal extensions; tergites of segments VI and VII with large tubular ducts; penial sheath triangular and more or less terminal.

Head

Broadly oval in dorsal view; length about 198 [230–260] µm; width across compound eyes 393 [450–480] m. Dorsally: postoccipital suture (pos) present across posterior part of epicranium (dmep), with a fairly narrow postocciput (poc) posteriorly. Midcranial ridge (mcr) represented by a faint, thin, lightly sclerotised ridge; dorsal part of epicranium (dmep) mainly membranous. Preocular ridge (procr) possibly present along margin of compound eye (cde) dorsally. Dorsal epicranium (dmep) with less than 10 hs on each side; loculate pores (lp) absent. Laterally: compound eyes (cde) each about 132 [155–170] m long, with about 90–100 [perhaps 150] ommatidia; each cde with a narrow, barely sclerotised ocular sclerite (ocs) along posterior margin of each compound eye and with a single ocellus (o) close to postoccipital suture; width of each ocellus 33–41 [23–28] µm; each ocular sclerite (ocs) with a sclerotised, longitudinal postocular ridge (pocr) along postero­dorsal margin; ventral projection (p) present. Ventrally with a strongly sclerotised series of ridges forming a five­armed cross, more distinct and heavily sclerotised than on Neosteingelia sp. , composed of: (i) a ventral midcranial ridge (vmcr) anteriorly; (ii) a pair of lateral preocular ridges (procr) each fusing with preoral ridge (pror) about half­way along latter’s length (Fig 18Z) [fusing where vmcr and pror meet (Fig 18, main drawing)], and (iii) a pair of preoral ridges (pror) posteriorly. Ventral part of epicranium (vmep) membranous apart from ridges; setal distribution as follows: anteriorly between midcranial ridges and antennae with 0–3 hs + 0 or 1 minute convex pore, plus either setae or minute pores present in a group medially on mid­cranial ridge [these setae or pores absent]; lateral area between preocular and preoral ridges with 1–3 hs per side; area posterior to preoral ridges and around mouth (m) with a total of about 11–14 hs. Cranial apophysis (ca) short and broad. Anterior tentorial arms (ata) and posterior tentorial arms (pta) not detected; tentorial bridge (tb) absent. With a pair of long, thin ventral sclerites (vs), appearing as extensions of preoral ridge, each articulating with cervical sclerite in neck region.

Antennae: 10­segmented [one antenna 9­segmented]; length uncertain — none complete [1.65–1.85 mm long] [ratio of total­body length to antennal length 1:0.83]. Scape (scp) 74–83 [95–108] m long, 107 [85–90] m wide, sclerotised, with a sclerotised

USNM

Smithsonian Institution, National Museum of Natural History

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Margarodidae

Genus

Neosteingelia

Loc

Neosteingelia texana Morrison

Hodgson, Chris & Foldi, Imre 2006
2006
Loc

Neosteingelia texana

Morrison 1927: 101
1927
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