416 



CHRYSIDID.E. 



ocelli always present ; mouth-parts similar to those of other Hymeno- 

 pterous insects (ride p. iv, Introduction to Hymenoptera, Vol. i.) ; 

 except in the subfamily Parnopinw the maxillary palpi are 5-, the 

 labial palpi 2-3-jointed. In Parnopes the maxillary and labial 

 palpi are both 2-jointed, but the mouth-parts are enormously 

 prolonged and exserted as in many of the Apidce. 



Fig. 147. 



.A. Thorax (Chry&is) : side view. 



B. Tliorax (Ckrysis): from above, a, collar; b, pronotum ; c, medial area 

 mesonotum ; d, d, lateral areas mesonotum ; c, scutellura ; /, postscutellum. 



Thorax subcylindrical, more or less convex, anteriorly broad, 

 widely arched or truncate, posteriorly truncate ; pronotum always 

 broader than long, more or less transversely rectangular ; meso- 

 notum divided by well-marked parapsidal grooves into three areas, 

 the medial area always longitudinally rectangular; mesopleurae 

 may be flat, depressed or convex, more or less coarsely sculptured, 

 angular or dentate at apex ; scutellum convex, often transverse, 



Fig. 148. 



A. Upper side abdomen (Chrysis) : a, b, c, 1st, 2nd, and 3rd segments ; c, basal 



area 3rd segment,; /, apical area of 3rd segment; a, retractile segments 

 partially exserled. 



B. Under side abdomen (Ckrysu) : a, b, c, 1st, 2nd, and 3rd ventral segments ; 



/, retractile segments ; g, ovipositor. 



never very narrow ; postscutellum in the majority of cases convex, 

 often gibbous, occasionally mucronate at base ; median segment 

 suppressed beneath the postscutellum ; the posterior lateral angles 

 always produced and more or less prominent ; the stigmata placed 

 above or in the hollow below them : wings never very long, with 

 few nervures and cells ; legs moderately slender ; the trochauters 

 one-jointed; the femora compressed, broadest in the middle; tibiae 

 more or less cylindrical, the aiiterior tibire with one, the inter- 

 mediate and posterior tibiae with t\vo calcaria. 



