Pachyjoppa CAMERON. Costulae 1901
Creators: name: A. M
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Pachyjoppa

description: 27. Pachyjoppa CAMERON   
 Pachyjoppa CAMERON 1901 - Ann. Mag. Nat. Hist. 7: 174-175.   
 Type species: Pachyjoppa tibialis CAMERON.   
 Platylabus: TOWNES 1961 - Cat. Reclass. Indo-Austr. Ichn.: 395-396 (part).   
 Pachyjoppa: HEINRICH 1974 - Ann. Zool. Wars. 32 (8): 136.   
 Type species: Pachyjoppa tibialis CAMERON.   
D i s t r i b u t i o n: Oriental Region (Burma, India). 1 species.  
I n t r o d u c t i o n:  
 The genus is characterized by large size, slanted temples, triangle from lateral scutellum with blunt, pointed backwards elevation on horizontal surface, by propodeum with area superomedia strongly elevated above lateral fields, strong and bent upwards apophysises, deep and broad gastrocoeli with narrow interval, yellow coloration of body and wings with darkened apices. The ratio of front wings length and length of a body characteristic for the tribe reaches in Pachyjoppa extreme expression, length of a front wing is equal to a body length. Habitually it reminds Lamprojoppa CAMERON i.e slanted temples, straight from above and very high occipital carina, morphology of a clypeus as of Lamprojoppa strongly protrude in front relative to face surface, very large antennal cavities reaching the level of front ocellus with sharply elevated front margins of antennal fossae, triangle from lateral scutellum and morphology of propodeum (high elevated and elongated area superomedia, bent upwards apophysises, absence of coxal carina and large slit-shaped spiracles). It is differed from Lamprojoppa practically by broad clypeus, absence of sharp notauli and traces of costula and by yellow color of body with darkened apices of front wings.   
M o r p h o l o g y:  
F l a g e l l u m: Of female bristle-shaped, beyond middle almost not widened, very slightly flattened ventrally and gradually attenuated toward apex, without white annulus. Flagellum by length shorter than front wing and approximately equal to body length. Flagellum of males without tyloides.  
 H e a d: Head contour from front almost square, genae long, slightly narrowed to mandibles; from above contour rounded, slightly transversal. Occipital carina sharp, from above not impressed to hind ocelli, meeting with hypostomal carina far from mandible base; mandibles with form character to tribe; clypeus large, strongly convex with straight front margin and broadly rounded lateral corners, transversal, strongly protrude in front relative to surface of face (cf. Lamprojoppa CAMERON); middle field very slightly elevated above lateral fields; antennal cavities very large, deep with distinct sharp tooth between antennal fossae; ocellar triangle elevated. Surface of clypeus with big superficial punctures.   
 T h o r a x: Transverse furrow of pronotum not interrupted by keel; pronotal ridge not thickened; pronotal base gradually sinuous, with very acute apex. Mesonotum moderately convex, longer than width; notauli not developed, surface of mesonotum very densely punctured, slightly shining; subalarum high, thin; sternauli absent; lower part of mesopleurae with angular bend to ventral one; scutellum very high with sharp lateral carinae, with blunt, pointed backwards elevation on horizontal surface. Hind margin of metanotum with triangular projections. Propodeum sharply angle-shaped; horizontal part some shorter than length of area posteromedia in middle; carinae of propodeum developed, with exception of costulae and coxal carina; area superomedia high elevated above lateral fields, long, widened in front, with cellular surface (cf. Lamprojoppa CAMERON); area dentipara at apex with strong apophysis bent upwards; first pleural area situated almost at horizontal plane; spiracles large, slit-shaped. Surface of propodeum very densely punctured with cellular sculpture, matt.   
L e g s: Long and strong.  
W i n g s: Areolet quadrangular asymmetrical; radius sharply curved at apex; radial cell narrow and long; nervulus postfurcal; membrane of wing intensively yellow, apex of front wings darkened.  
A b d o m e n Uniformly longish-oval; second tergite transverse; sheath of ovipositor only just protrude. Petiolus flattened, long, from lateral with sharp bend to postpetiolus and strong lateral carinae, from above gradually broadened to postpetiolus; postpetiolus long, middle field not limited, shining. Gastrocoeli deep, triangle; thyridia weak; lunulae absent; second tergite in middle densely and roughly punctured, slightly shining. Hypopygium from below strongly pointed, with longitudinal fold in middle.  
C o l o r a t i o n: Body and wings yellow, apex of front wings darkened.  
S i z e: 12-16 mm.
description: Published as part of A. M, 2009, Illustrated key to the tribes of subfamilia Ichneumoninae and genera of the tribe Platylabini of world fauna (Hymenoptera, Ichneumonidae), pp. 1317-1608 in Linzer biologische Beiträge 41 (2) on pages 1513-1515, DOI: 10.5281/zenodo.5277083