222 M. W. R. de V. GRAHAM 



aconitophila Hendel, Preisberg near Berchtesgaden, Germany (F. Groschke), in coll. 

 Delucchi. 



? Britain ; Germany. 



Delucchi's original host-record was Phytomyza aconitophila Hend. on Aconitum. 



The British specimens presumed to be groschkei were reared from Agromyza 

 spiraeae Kalt. on Filipendula ulmaria (L.), Phytomyza sphondylivora Spencer, and 

 Calycomyza artemisiae (Kalt.) on Eupatorium cannabinam L. (G. C. D. Griffiths) ; 

 material in BM(NH)). Imagines June-August. 



Stictomischus lamprosomus sp. n. 



(Text-figs. 172, 175) 



$. Body green, more or less tinged with golden in places, especially on the vertex and the 

 sides of the mesoscutum. Mandibles reddish to brown, with fuscous teeth and base. Antennal 

 scape testaceous, its tip fuscous ; pedicellus and flagellum blackish. Coxae concolorous with 

 the body ; rest of legs testaceous, with the fore femora broadly banded with blackish medially, 

 the mid and hind femora slightly brownish medially in one specimen, the fifth segment of the 

 mid and hind tarsi and the pretarsi of all the legs, brown. Tegulae blackish with a metallic 

 gloss. Wings subhyaline ; venation brownish, with the submarginal vein, parastigma and 

 stigma fuscous. Length 3 to 3-2 mm. 



Head about 1-25 times the breadth of the mesoscutum ; in dorsal view about 2-25 times as 

 broad as long with temples converging rather strongly behind the eyes, and from hardly one 

 fifth to nearly one quarter the length of the eyes, POL approximately equal to OOL ; head in 

 front view subtrapeziform with the genae converging in straight lines towards the mouth ; 

 eyes separated by about 1-35 times their length, their inner orbits virtually parallel ; malar 

 space virtually one third the length of an eye ; breadth of oral fossa three times the malar 

 space ; clypeus shiny, nearly smooth, its anterior margin deeply incised medially, with a double 

 tooth on the left side and a large single tooth on the right side of the incision, the clypeus above 

 the incision with a median depression ; mandibles rather large, their lower margin sinuate, 

 the left with three and the right with four teeth, the outer tooth of each acute, the inner one 

 truncate, the intervening ones subobtuse ; the head apart from the clypeus is very finely 

 reticulate, the sculpture slightly raised above the surface ; antennal toruli separated from eyes 

 by about 1-5 times their distance apart. Antennae (Text-fig. 172) inserted well above the level 

 of the ventral edge of the eyes ; scape short, its length somewhat more than half the length, and 

 less than the transverse diameter of an eye, not reaching the median ocellus ; combined length 

 of pedicellus and flagellum about 1 -5 times the breadth of the head ; pedicellus in profile barely 

 1 -5 times as long as broad, about half the length of the first funicular segment ; funicle slender, 

 proximally slightly stouter than the pedicellus, filiform or even tapering very slightly distad, its 

 first segment 2 to 2-2 times, the sixth i-6 to 1-75 times, as long as broad ; the funicular seg- 

 ments are distinctly separated from each other while each is a little swollen proximally and 

 tapers slightly distad ; clava hardly broader than the sixth funicular segment, slightly more 

 than three times as long as broad, its length about equal to that of the two preceding funicular 

 segments together, its first segment distinctly elongate and somewhat less than half the total 

 length of the clava ; there is a patch of micropilosity on the third claval segment, and a few hairs 

 of the same type on the distal part of the second segment ; sensilla numerous, relatively short, 

 arranged in three irregular rows on each funicular segment, and in two rows on each claval 

 segment. 



Thorax about 1 -8 times as long as broad, therefore relatively elongate for the genus, only 

 moderately arched dorsally, the dorsellum and propodeum sloping at an angle of about 45 to 

 the tangential plane of the mesoscutum and scutellum. Pronotum narrowing forwards, not 



