Characters of the genus Cheiropachus. 23 



ever, to correct the errors into which Mr. Curtis has fallen, and to state, 

 1st. That (although that author has admitted the depressus to be the type 

 of Cleonymus) not one of the characters which he has given of that genus 

 is applicable thereto, excepting only such as are applicable to the whole 

 family or subfamily; since 2nd, the insect figured and described as the 

 male of the Cleonymus, and from which the male characters of that genus 

 were derived, is the male of a species not belonging thereto, but to a very 

 distinct and new genus; and 3rd, the insect from which the female cha- 

 racters were derived also belongs to another distinct genus, not being a 

 Cleonymus, and consequently not CI. depressus, as imagined by Mr. 

 Curtis ; 4th, that the male insect in question has erroneously been sup- 

 posed to be a new species ; and lastly, that the formation of at least the 

 anterior portion of the thorax or truncus of the Hymenoptera has not 

 been sufficiently investigated by that author. 



The following are the external characters of the new genus of which 

 the misnamed CI. maculipennis is the type. Mr. Curtis having described 

 the trophi of the male of that species as the trophi of Cleonymus, I shall 

 refer the student to that author's description thereof for the cibarian 

 characters of the 



Genus, Cheiropachus,* mihi. 

 Type, Diplolepis quadrum, Fab. 

 Head orbicular and rather convex in front, transverse above. Antennee 

 of both sexes longer than the head, geniculated, filiform, inserted below 

 the middle of the face, 13-jointed, pilose, basal joint long and stout, second 

 small, third and 4th very minute, ring-shaped, fifth and remainder cup- 

 shaped, each about as long as the second, the fifth being rather the longest, 

 the three last forming a conical mass. The Antennae of the female 



desiderata Entomologis oculatis commendo. E. gr. Ichneumones, Apes, Curcu- 

 liones, Tineas, aliaque." 



The science of Entomology is now indeed so vastly increased that it is im- 

 possible for any one thoroughly to investigate every branch of it (I might almost 

 say, scarcely more than a single branch of it) in detail. How continually do 

 we therefore perceive the ill effects of such fruitless endeavours to overcome the 

 whole, in the confusion produced by authors commenting upon groups with 

 which they are not previously sufficiently acquainted ! 



♦ Xilp, manus et iraxvc crassus. 



