epiproct

epiproct

[′ep·ə‚präkt]
(invertebrate zoology)
A plate above the anus forming the dorsal part of the tenth or eleventh somite of certain insects.
References in periodicals archive ?
The Latin "digitata" refers to the long, finger-shaped projection at the tip of the epiproct.
Epiproct quadrangular, enlarged apically, an elongate finger-shaped projection protruding from a V-shaped notch in dorsal view; dorsal sclerite mostly membranous, with a deep V-shaped notch apically; lateral arms slender, sclerotized; ventral sclerite forming a flat ridge, bearing rows of black spines ventrally (Fig.
Epiproct thick with erect, hook-like portion curved dorsally (Fig.
Epiproct thick and elongate, C-shaped in lateral view, tip rounded (Fig.
1D) broader than long; with single pseudospiracular opening; subepandrial plate large, semicircular in dorsal view; hypoproct broadly U-shaped, densely pilose, covering bases of epandrial claspers; epiproct small, oval; epandrial claspers curved, carrying three distal tenacula in one row; tenacula spatulate, 87 pm long, tips slightly expanded.
Female postabdomen: Segment 8 with only st sclerotized and this is divided into two lateral plates which, when viewed from below, appear velvety owing to a dense pruinosity; each structure extends medially to form a translucent membranous lobe, which serve to close the genital opening; hypr present, small, membranous or very poorly sclerotized, usually bare or with microtrichia; epiproct not developed; 2 small (0.
Diagnosis: A diagnostic somatic character of this family is the epiproct, which is prolonged into a spine (Fig.
Epiproct small, medially divided, as long as wide, bearing several tiny setulae.
Terminal segments form retractile ovipositor sheath; pair of long bristles on epiproct and pair of short pale bristles on hypoproct.
Epiproct extremely large, broad and triangular, with a pair of widely separated setae and longer but fine hairs apically and on a pair of low, slightly curved, dorsal ridges (Fig.