272 MODERN SYSTEM. 
Subdivision 1 . — Metathorax with the middle produced into a scidellum. 
* Abdomen with the. second segment larger than the others : palpi 
muny-jointed. 
Genus 4ST. ELAMPUS. Spinoli, Latr., Leach. Chrysis. Fair., 
Jurine. Hedychrdw. Pang., Lepeleticr. 
Mandibles dentated: abdomen terminated by an obtuse point; the se- 
cond segment larger than the others. 
Sp. 1. FJ. Panzcri. 
Elampus Panzcri. Spinoli. Chrvsis Panzeri. Fair. 
Inhabits walls. Taken at Exeter by Dr. Leach. 
Subdivision 2 . — Metathorax with the middle not elongated into a scu- 
tellum. 
** Abdomen with the third or fourth segment larger than the ethers '■ 
palpi two-jointed ( and very small). 
Genus 438. CHRVSIS of authors. Vespa. Geoff. 
Mandibles with one tooth on their internal edges : abdomen semicylin- 
dric, elongate ; the last segment abruptly divided by an impression, 
with a transverse row of impressed dots. 
Sp. 1 . Chr. ignita. ( PI . 8. fig. T.) 
Inhabits sand-banks, posts, and walls, li e have several species in this 
country that have been Confounded with Chr. ignita, $c. 
Genus 439. HEDYCHIWM. Latr., Pang., Spin. Ciirysis, 
' Linn., Fair., lllig., Lamarck. 
Mandibles bidentate on their internal edge: abdomen semicircular, with 
the extremity rounded ; all the segments united. 
Sp. 1. lied, uuratum. 
Chrysis aurata. Fair. Iledychrum auratum. Leach. 
Inhabits sand-banks. 
Section II. ACULEATA. 
Oviduct none : sting or aculeus in the females having a communica- 
tion with poisonous glands : abdomen attached to the thorax in all by 
a part only of its transverse diameter. 
Division I. — Hinder feet, not pollinigerous ; their tarsi with the first joint 
cylindric , not much larger than the others , nor much compressed. 
Larva; omnivorous. 
Subdivision 1 . — Ocelli or stemniata not distinct. . Wings often wanting 
the females and neuters. 
Earn. IX. Formicad.®. Leach. 
Formicarix. Latreille. 
Abdomen with a peduncle abruptly formed, with a scale on two knots : 
