PTEROMALIDAE OF N.W. EUROPE 213 



Gitognathus laevigatas (Delucchi) 



Stictomischus laevigatus Delucchi, 1953a : 212-213, $. 

 Gitognathus laevigatus Delucchi, 1955 : 69, 74, $. 



Type material. Holotype $, Hungary, Fokto, 13.viii.1943 (Erdos), in Hungarian 

 Natural History Museum, Budapest ; it is labelled " Fokto 1943 viii.13 dr. Erdos " ; 

 " 9 " ; " 17." ; and " Stictomischus laevigatus n. V. Delucchi det.". I have seen 

 no other material. G. laevigatus is very close to laevis ; their respective females 

 may be distinguished by the characters given in my key. The structure of the 

 median carina of the propodeum, and the colour of the tibiae, characters used by 

 Delucchi (1955) are variable in laevis and therefore of little value. Another character 

 mentioned by him, the presence in laevis of a fine longitudinal carina on each side 

 of the petiole, and its absence in laevigatus, appears to have some value although it 

 is slightly variable. In laevis the carinae are usually traceable from the base to the 

 apex of the petiole, but they are not always very distinct throughout. In the 

 holotype of laevigatus the carinae are not completely absent, but are traceable in 

 the basal half of the petiole. In laevigatus the head and thorax are green ; in laevis 

 they are most often suffused with bronze or purplish bronze. 



Hungary. 



Biology. Unknown. 



This species and laevis probably belong to the genus Xestognathus Kamijo 

 (1960a : 118), described from Japan. 



Gitognathus microstolus sp. n. 



$. Head and dorsum of thorax green to blue-green ; sides and ventral part of thorax with 

 less intense metallic tints which tend towards bronze, especially on the mesepimeron ; gaster 

 tinged with greenish and bronze. Mandibles reddish with darker teeth. Antennae black, the 

 scape and pedicellus with a metallic gloss. Legs mainly blackish, the coxae, femora and parts 

 of the tibiae with a greenish or bronze tinge ; trochanters partly, knees, and tarsi except their 

 tips, testaceous ; the fore tibiae have a testaceous stripe on their inner aspect, or are wholly 

 testaceous ; the hind tibiae sometimes have a reddish stripe along their flexor surface. Tegulae 

 black with a metallic gloss. Wings hyaline ; venation brown. Length 1 -8 to 2 mm. 



Head hardly 1-2 times as broad as the mesoscutum, in dorsal view twice as broad as long or 

 very slightly more, with temples converging somewhat and hardly one quarter the length of 

 the eyes, POL about 1 -4 OOL, the hind ocelli separated by about twice their own length from 

 the eyes. Head in front view oval, about 1-3 times as broad as high, the genae converging 

 moderately strongly and having a slightly curved outline ; eyes separated by 1-25 times 

 their own length ; malar space only about one quarter the length of an eye ; breadth 

 of oral fossa somewhat more than three times the malar space ; clypeus alutaceous, anteriorly 

 with a shiny depression, its anterior margin with a bifid tooth on the left side and a large 

 simple tooth on the right side, separated by a deep incision. Mandibles similar in shape, 

 moderately large, their lower margin sinuate, both with three teeth of which the inner one is 

 broadly rounded or subtruncate. Antennae (Text-fig. 166) inserted distinctly above the ventral 

 edge of the eyes ; scape not nearly reaching the median ocellus, its length about equal to the 

 transverse diameter of an eye ; combined length of pedicellus and flagellum virtually equal 

 to the breadth of the head ; pedicellus nearly twice as long as broad, about equal in length 

 to the anelli plus the first funicular segment ; funicle proximally not or hardly stouter than the 



