1969] 
Beardsley- — Fossil Scale Insect 
275 
small dash-like reflective areas which may be sites of very short 
setae, or sensoria. Apical segment with 3 curved thickened digitiform 
setae and four long, slender, apically capitate setae. 
Prothorax largely membranous ; dorsum with a pair of small trans- 
verse postnotal sclerites (pn) with weak lateral anterior extension in- 
dicated; pronotal ridge apparently not developed. Propleural sclerites 
well defined; consisting of the propleural ridge (plrx) and a elongate 
cervical sclerite (cv) ; these apparently not intimately fused at junc- 
ture. Anterior end of cervical sclerite apparently articulating with 
base of postocular ridge. Small sclerotized prothoracic spiracular 
peritreme (ptri) present in membranous area between forecoxa (cx 1 ) 
and mesepisternum. Prosternite (stnj) well defined, narrow, elongate; 
anterior portion expanded into a small, nearly quadrate, less strongly 
sclerotized plate; posterior apex shallowly incised medially. 
Prealare (pra) narrow, strongly reflexed, arising from anterio- 
lateral extension of scutum, possibly extending as a narrow thickened 
band along anterior border of scutal extension to sides of scutum; no 
evidence of separate triangular plate at apex of prealare. Tegula (t) 
relatively large and elongate. Basalare sclerite (ba) large and con- 
spicuous; small subalare (sa) discernible in membranous area just 
below wing base. Mesopostnotum (pn 2 ), except for right side, 
largely obscured by flaw plane in type specimen. Postalare (antero- 
lateral arm of mesopostnotum) (pa) extending to base of pleural 
wing process (pwp). Mesopleural ridge (plr 2 ) extending almost 
horizontally forward from base of mesocoxa to presumed site of 
mesopleural apophysis just below base of pleural wing process. 
Mesepisternum (eps 2 ) well developed, with a large, oval, somewhat 
convex disc area dorsally; anterior part of episternum below disc 
weakly sclerotized ; anterior margin marked by a narrow subepisternal 
ridge (ser). A narrow, well-defined lateropleurite (lp) present at 
base of episternum, apparently separated from it by a posterior ex- 
tension of the subepisternal ridge. A small triangular sclerite, appar- 
ently the mesothoracic spiracular peritreme (ptr 2 ), behind base of 
mesocoxa. Mesobasisternite (stn 2 ) large, strongly sclerotized, convex, 
longer than wide; apparently not divided by a median longitudinal 
ridge. A pair of small, narrow, sublateral sclerites immediately behind 
basisternite may represent a mesospinasternite. 
Metanotum not discernible in type specimen due to intersecting 
flaw plane. Metapleural ridge (plr 3 ) elongate, narrow, strongly 
inclined, extending anteriorly from base of hind coxa to margin of 
flaw plane. Hamulohalteres, if present, not discernible. Metepimeron 
