Charcwters of the genus Cleonymus* 15 



Latreille, subsequently in the 4th volume of the Genera Crustac. &c, 

 (1809), proposed the genus Cleonyraus, which, with Spalangia, he placed 

 in a section of the family whose characters are " mandibulae bidentatge; 

 thoracis segmentum anticum antice attenuatum, subconicum; abdomen 

 ovato-conicum, vel trigonum, elongatum, subtus, terebrae excipiendae 

 causa, in feminis longitrorsum canaliculatum;" adding also the following 

 Obs. "Antennae valde fractae, sensim extrorsum crassiores, articulis 

 decern distinctis, ultimo magno, distincto." The number of joints in the 

 antennae specified in this observation is, however, applicable to Spalangia 

 alone. In the characters of the genus Cleonjrmus itself we find " antennae 

 ultra capitis marginem anticum et superum, vel oralem, insertae." The 

 species given as types are " Dipl. depressa. Fab. ; Ichn. rufescens, Rossi; 

 I. fenestralis, Rossi; Ichneumon, De G., torn 2, pi. 31, fig. 22, ejusdem 

 generis?" In his "Considerations generales" (1810) similar sections 

 are adopted, but the only tjrpe of the genus which is given is the Dipl. 

 depressa. Fab. 



This species, therefore, we are bound to consider as our type, not only 

 from its having evidently been considered as such by Spinola and Latreille, 

 but also from its having been tolerably figured by Coquebert. None of 

 the other species placed in the genus appear to have been figured, (except 

 De Geer*s,) and it would be difficult to draw generic characters sufficiently 

 explicit from the short specific descriptions which have been given of 

 them; and it will be seen that Latreille himself had doubts whether the 

 only other figured species belonged to the genus, and which is, in fact, 

 the Eupelmus De Geeri of Dalman; and if, upon a rigorous investigation 

 of the generic characters of the other species placed in the genus, it shall 

 be discovered that they do not agree with the characters of the type, 

 although perhaps they may nevertheless fall within the previously too 

 loosely drawn characters of the genus, I shall not hesitate in considering 

 the depressa as solitarily entitled to the generic name, and that the other 

 species must be placed in other genera. 



The following is the description of the t5rpe from the Systema Piezato- 

 rumofFabricius, p. 151. 



