558 M. W. R. de V. GRAHAM 



<J. Easily recognized by the characters of the oral fossa, mandibles, ocelli, antennae and 

 propodeum, for which see my key to q* Habrocytus. In other, non-sexual, characters it much 

 resembles the $, but has the head less transverse, the gaster oval and hardly longer than the 

 thorax. 



The $ of this species may be known from those of all the other described species 

 of Habrocytus by the combination of the following characters : low insertion of 

 antennae, very small ocelli, unusually long malar space and small eyes, and the 

 almost undeveloped propodeal nucha. 



Holotype $. Ireland : Co. Down, Glasdrumman, 21.viii.1956 (Stelfox), in 

 Graham collection. 



Paratypes. Ireland : Co. Down, same data as holotype, 1 $ ; Benagh, 1 $, 

 i.vii.1957 (Stelfox) ; Co. Dublin, Swords Estuary, 1 $, 2 $, 26.viii.1954 (Stelfox), 

 in Graham collection. Britain (unlocalized) : 1 $, reared from Gymnetron antirrhini 

 (Paykull) (K. G. Blair), in B. S. Doubleday coll., Hope Department, University 

 Museum, Oxford. 



Species sola 

 Habrocytus janssoni sp. n. 



$. Body green to blue ; disc of gaster purplish. Mandibles testaceous with darker teeth. 

 Antennae black ; scape testaceous at extreme base. Coxae, and femora except their tips, 

 concolorous with the thorax ; trochanters partly pale ; tibiae fuscous, testaceous at base and 

 apex ; fore tarsi mainly fuscous, mid and hind tarsi testaceous at base and becoming fuscous 

 distally. Tegulae partly testaceous. Wings subhyaline ; venation brown or blackish. Length 

 2 to 2-1 mm. 



Head in dorsal view 2-15 to 2-2 times as broad as long ; temples about one quarter as long 

 as eyes, strongly rounded off ; POL about 1 -5 OOL. In frontal view the head is subtrapeziform, 

 with genae slightly buccate. Eyes separated by about 1-4 times their length. Malar space 

 about 0-45 the length of an eye. Clypeus strigose, the strigosity hardly extending on to the 

 face or genae, its anterior margin deeply incised so as to appear almost bidentate. Rest of 

 head moderately shiny, finely reticulate. Lower edge of antennal toruli distinctly above the 

 level of the ventral edge of the eyes ; scape slightly more than three quarters the length of an 

 eye, reaching to about the middle of the median ocellus ; combined length of pedicellus and 

 flagellum about 1 -i times breadth of head ; pedicellus in profile slightly less than twice as long 

 as broad, from slightly to distinctly longer than the first funicular segment ; flagellum nearly 

 filiform ; funicle proximally slightly stouter than the pedicellus ; all the funicular segments 

 subquadrate, or the proximal ones up to 1-3 times as long as broad ; clava about as long as 

 two and a half of the preceding funicular segments ; sensilla fairly numerous. 



Thorax 1-5 to i-6 times as long as broad. Pronotal collar finely though sharply margined 

 throughout, medially extremely short, only one eighteenth to one sixteenth as long as the 

 mesoscutum. Mesoscutum 1 -5 to 1 -6 times as broad as long, moderately shiny, finely reticulate, 

 a little less finely in the middle of its front part. Scutellum convex, slightly shorter than the 

 mesoscutum, about as broad as long, moderately shiny and very finely reticulate, like the 

 axillae. Propodeum medially one third or slightly more than one third as long as the scutellum, 

 much resembling that of microps sp. n. (Text-fig. 371) in shape ; medially hardly produced 

 beyond the bases of the hind coxae ; median area 2 to 2-5 times as broad as long ; median 

 carina distinct ; plicae sharp only posteriorly where they are strongly convergent, otherwise 

 indistinct except near the basal foveae ; nucha a mere transverse ridge ; panels of median 

 area moderately shiny, weakly obliquely strigose-reticulate ; spiracular sulci shallow and 



