Hemiteles?[ 



BRITISH ICHNEUMONS. 



117 



I)robal)ly reveal more tliaii one to be referable to the genus PezoiiiJi/iiis, 

 and I anticipate that many will prove to be synonymous when due attention 

 is devoted to the breeding of these insects, since the range of specific 

 variation is at present most inadequately recognized. 



Progress is, however, very marked in the association of the sexes ; in 

 1874 twenty-nine of the forty-four kinds then enumerated were known in 

 one sex only, whereas we are now ignorant of the opposite sex of but 

 eighteen of our sixty-six species ; though in some cases it must be owned 

 that the reference is probal)ly more arbitrary than natural, since it is based 

 entirely on the similarity of structural characters. Of these I have been 

 enabled to supply four or five, together with the descrijjtions of one or two 

 species new to science. 



In Guernsey, Luff has once or twice taken //. pulchellus, Grav. (</. 

 Trans. (Juern. Soc. 1903), a species not yet noted in liritain ; and un- 

 named species of Ht'initeles have been bred from Dianthecia capsincola 

 and Lithocolletis Sclireberella (Entom. i88r, p. 139), and from Micro^aster 

 iitlricatus (Haliday, Ent. Mag. ii. p. 468). 



Hemiteles rujipes, Bridg., and H. tibialis, Bridg., are recorded from 

 Norfolk (Trans. Norf. Soc. 1894, pp. 614, 615). These, I think, must 

 be MS. names, since I can find them nowhere described. The former 

 is certainly not Hemimachus rufipes, Bridg., which is referred to later in 

 the same paper, nor is it Hemiteles rufipes described by Taschenberg 

 from Brazil (Zeits. Ges, Nat. xlviii. p. 961). The H. zonatus of Bridg.- 

 Fitch (Entom. 1883, p. 103) is the male of Pezomaclii/s zonatus, Forst. 

 Schmiedeknecht in 1905 records H. rufiilus. Thorns., from England, but 

 I know of no justification for this and presume it to be a lapsus calami for 

 Cecidononius rufus, Bridg. {inimicus, Gr.) ; it is, however, not unlikely to 

 occur with us, since it is found in both Sweden and Germany. 



INUSTUS, Grav. 



Table of Species. 



Areolet with the outer nervure 



sub-entire i. I'ULI-ATOR, Grav. 



Arcolct with the outer nervure 



obsolete or wantinj^. 



Areolet sub-pyramidal 2. 



Areolet, including supposititious 



ner\ure, pentagonal. 

 Pronotum centrally carinate and 



laterally foveate. 

 Second segment impressed ; ner- 



vellus not or faintly intercepted. 

 Basal segment broad ; the second 



evenly scaljriculous. 

 Incisures not or hardly pale ; 



(J valvulac prominent 3. 



Incisures distinctly pale ; (J val- 



vulae normal 4. 



Basal segment slender; the 



second longitudinally scabricu- 



lous 5. .sur.M.NKf.iNATU.s, Bridg. 



Second segment not impressed ; 



nervcUus distinctly intercepted. 

 Basal metathoracic area triangu- 

 lar; secondscgmenttrans-slriate 6. sc.M'.RICUlX's, Thorns. 



FUl.vii'KS, Grav. 



M A RGl N ATU.S, Bridg. 



