Proceedings of the United States National Museum . this subfamily are endoparasitic in Lepidoptera. Theparasites emerge from the pupae of the hosts. The epistoma is well sclerotized except in Triclistus; the pleurostomaand hypostoma are well sclerotized; the hypostomal spur is absentand the stipital sclerite extends dorsally to meet the hypostoma; thelabial sclerite is incomplete ventrally; on each maxUlary and labialpalp there is one large sensillum and one or several smaller sensilla;the silk press is well sclerotized; there is a lightly sclerotized plateventral to the press containing two s
Proceedings of the United States National Museum . this subfamily are endoparasitic in Lepidoptera. Theparasites emerge from the pupae of the hosts. The epistoma is well sclerotized except in Triclistus; the pleurostomaand hypostoma are well sclerotized; the hypostomal spur is absentand the stipital sclerite extends dorsally to meet the hypostoma; thelabial sclerite is incomplete ventrally; on each maxUlary and labialpalp there is one large sensillum and one or several smaller sensilla;the silk press is well sclerotized; there is a lightly sclerotized plateventral to the press containing two sensilla; this plate may representthe dorsal part of the prelabial sclerite but is more probably theventral part of the silk press; the labral sclerite is absent; the mandiblesare relatively large and do not have teeth on the blade; the antenna isdisc-shaped; the atrium of the spiracle is shallow; the closing apparatusof the spiracle is thin-walled and with a length approximately equal 2Of Scott (1939). ICHNEUMONID FINAL INSTAR LARVAE—SHORT 479. Of mm Figure 48.—Metopiinae, head sclerites: a, Metopius viicratorius (Fabricius); b, Triclistus\> curvator (Fabricius); c, Exochus scitulus Provancher, antenna not visible or. preparation.^^Xl) antenna; 2, spiracle; 3, skin.) 480 PROCEEDINGS OF THE NATIONAL MUSEUM
Size: 1125px × 2221px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
