4 i2 M. W. R. de V. GRAHAM 



probably on the evidence of the type $ in the Linnean collection, whose identity he 

 mistook. He certainly saw this specimen, because his interleaved copy of a set of 

 some of his papers [in my library] contains MS. remarks headed " Linn. Cabinet ", 

 one of which states " Colon so ticketed is Cheiropachus quadrum ". 



Dinotus calcaratus Thomson. Syntypes examined by the writer, but no lecto- 

 type yet selected. 



Britain, Sweden, Finland, Germany, Czechoslovakia. 



Biology. Parasite of Blastophagus piniperda L., B. minor Htg., and Ips acumina- 

 tus Gyll. (see Hedqvist, 1963 : 90). Imagines most often in June. 



Note. Most or all of the North American species placed in Cecidostiba by Peck 

 {in Muesebeck, Krombein & Townes, 195 1 : 557) belong in or very near Dinotiscus. 



Pteromalus dulcis Walker (1872 : 121, $) from Madeira appears, according to its 

 type (Type Hym. 5. 714) to be very near Dinotiscus. 



RHOPALICUS Forster 



Rhopalicus Forster, 1856 : 66, 70. Type-species : Cleonymus maculifer Forster, 1841, by 

 monotypy. 



Thomson, 1878 : 32, 41. 

 Schmiedeknecht, 1909 : 316, 317, 319. 

 Kurdjumov, 191 3 : 4, 10 [ex parte]. 

 Ferriere, 1948 : 519-522. 

 Nikol'skaya, 1952 : 216. 

 Hedqvist, 1963 : 71-83. 

 Peck et al., 1964 : 44. 



Rhopalicus Forster 

 Rhopalicus Forster 

 Rhopalicus Forster 

 Rhopalicus Forster 

 Rhopalicus Forster 

 Rhopalicus Forster 

 Rhopalicus Forster 



Key to European Species 

 (Females) 



Fore wing with lower surface of costal cell with two to four rows of hairs even 

 in its proximal half ; basal cell with a few scattered hairs distally in 

 addition to those on the basal vein ; stigma conspicuously longer than 

 high. Gaster at least slightly longer than head plus thorax. Combined 

 length of pedicellus and nagellum fully equal to breadth of head. Head in 

 dorsal view 2-1 to 2-15 times as broad as long ; temples from one quarter 

 to nearly one third as long as eyes. Fore wing often with a fuscous cloud 

 around the stigma ...... tutela (Walker) (p. 413) 



Fore wing with lower surface of costal cell with only one row of hairs in its 

 proximal half ; basal cell bare, not counting the row of hairs on the basal 

 vein ; stigma sometimes less elongate. Gaster at most as long as head 

 plus thorax. Combined length of pedicellus and nagellum slightly less than 

 breadth of head. Head in dorsal view 2-15 to 2-45 times as broad as long, 

 relatively more transverse in larger specimens ; temples from one sixth 

 to one fifth as long as eyes. Fore wing either immaculate, or with a fuscous 

 spot below the basal part of the marginal vein ...... 2 



Fore wing immaculate ; stigma distinctly longer than high ; stigmal vein 

 forming a relatively acute angle (barely 35 ) with the postmarginal vein. 

 Antennal nagellum slightly clavate. Scutellum, in profile, appearing 

 virtually flat ...... brevicornis Thomson (p. 414) 



