British Braconidse. 49 



hind coxae blackish ; abdomen much shorter, 1st segment . entirely 

 black ; the following brown with only the 2nd suture pale. 

 9 Length, IJ ; exp. 2 J : $ length, IJ ; exp. 2 lines. 



Parasite of Schizoneura ulmi, L., the puceron of the elm, 

 Ulmus campestris. Bignell has reared both sexes. 



15. Aphidius pascuorum, Marshall. 

 A. pascuorum, Marsh,, lih. cit., p. 577, $ . 



9 Black ; abdomen piceous, testaceous above at the apex. Oral 

 parts and palpi fuscescent. Antennae 17-jointed, shorter than the 

 body, black, with the two basal joints brown. Mesothoracic furrows 

 effaced ; metathorax carinated, areated. Wings hyaline, with very 

 fine and indistinct'neuration ; squamulse and radicles impure whitish ; 

 stigma colourless, hyaline ; nervures pale brownish, bvxt visible only 

 in the basal region, except the commencement of the radial, and the 

 fragment of the cubital which forms the underside of the 1st cubital 

 areolet. Legs fuscous, including all the coxse ; trochanters and 

 knees pale. Abdomen lanceolate, longer than the head and thorax ; 

 1st segment piceous, rather stout, twice as long as broad, its tubercles 

 effaced. Valves of the terebra black. $ Unknown. Length, | ; 

 exp. 1^ lines. 



Parasite of Siphonophora longipenoiis, Buckton, the 

 puceron of Poa annua, annual meadow-grass : reared by 

 Bignell. In some of his trials he obtained only two red- 

 headed species of Allotria, one being A. vidrix, Westw., 

 and the other ticketed erythrocephala, Jurine ; this latter 

 is now indeterminable. Both were probably hyperpara- 

 sites of A. pasc'uorwn. 



16. Aphidius pterocommx, Marshall. 



A. pterocommx, Marsh., lib. cit., p. 578, $ . 



$ Fuscotestaceous, head and thorax black above ; face and pectus 

 testaceous, the latter black posteriorly. Head wider than the 

 thorax ; oral parts, palpi, and sometimes the occiput, testaceous ; 

 palpi white (in one specimen) ; mandibles black at the points. 

 Antennae almost as long as the body, 19-20-jointed, black, with the 

 1st joint, the apex of the 2nd, and the extreme base of the 3rd, 

 testaceous. Prothorax and sides of the mesothorax rufotestaceous ; 

 mesothoracic furrows effaced ; metathorax carinated, areated. 

 TRANS. ENT. SOC. LOND. 1899. — PART I. (APRIL) 4 



