MONOGRAPHIA CHALCIDUM. 369 



riore insertae, ll-articulatse?'', clavatae, pubescentes ; articulus 

 1"\ elongatus, versus apicem crassior ; 2"\ et 3"\ elongato-cya- 

 thiformes ; 4"^ et sequentes longitudine decrescentes, fere rotundi ; 

 clava triarticulata, ovata : thorax elongato-ovatus : prothoracis 

 scutum angustum ; scutellum maximum, antice angustius : me- 

 sothoracis scutum minimum ; parapsides convexi, optime deter- 

 minati ; scutellum parvum, fere rotundum, depressum ; paraptera 

 et epimera parva : metathoracis scutellum magnum : abdomen 

 elongatum, petiolatum, supra depressum, subtus carinatum, apice 

 elevatum et compressum ; segmentum 2""". magnum, supra medio 

 retractum; 3""". breve; 4"°". longius ; sequentia parva: oviductus 

 exsertus : pedes subaequales ; coxae magnae ; femora, praesertim 

 postica, clavata ; tibiae rectae, apice crassiores et spinis armatae ; 

 tarsi articulis 5, 1"% longus, sequentes longitudine decrescentes, 

 5"^ praecedenti longior et crassior : alae superiores antice et apice 

 ciliatae ; nervus solitus ramulum emittens brevem, et mox ab- 

 ruptus. 



I have placed this singular genus between Decatoma and 

 Megastigraus, though it differs from both in many particulars. 

 Like the Spalangiidse, the antennae are inserted in the lower 

 part of the face, but the head is transverse, and not depressed. 

 It has the prothorax developed like the Cleonymidae ; and like 

 them also, the angle, formed by the stigmal branch with the 

 continuation of the principal nervure of the superior wing, is 

 more acute than in most of this tribe. The structure of the 

 trophi will probably determine its natural situation. 



Sp. 1. Epim. rufus. Fern. Rvfus, thorace et abdomine 

 postice nigris, anteimisfuscis, alls hyaUms,fusco maculatis. 



Caput rufum, nitidum ; vertex niger : oculi nigro-fusci : ocelli rufi : 

 antennae fuscae, basi et subtus rufae ; clava articulis 2-praeceden- 

 tibus longior et latior : thorax nitidus, subtus omnino rufus, 

 prothorax rufus, postice supra fuscus : mesothoracis scutum 

 nigrum, antice fuscum ; parapsides prope scutum fuscescentes ; 

 squamulse rufas ; scutellum nigrum, apice rufum : metathoracis 

 scutellum scabrum, obscurum, nigrum : petiolus brevissimus, 

 crassus, obscurus, scaber, rufus : abdomen nitidum, glabrum, 

 cyaneo-nigrum, subtus fuscum, apice setosum ; segmentum 2"°'. 

 rufum, basi fuscum ; 3*"". rufum, supra nigrum : oviductus ab- 

 dominis segmento ultimo paullo longior, fuscus, basi rufus : pedes 



^ The two ring-shaped joints of the antennae apparent in most of the Penta- 

 merous Chalcides are almost, if not entirely, obsolete in this genus. 

 NO. IV. VOL. I. 3 B 



