154 BRITISH ICHNEUMONS. {Hemiteles. 



This species was first brought forward as British by Rev. '1'. A. Marshall 

 (in Ent. Ann. 1874, p, 142) on the strength of a single female taken at 

 St. Albans : he says it is one of the largest species of the genus. Brundall 

 in Norfolk, in May (Hridgnian) ; a male at Plumstead early in August, 

 1897 (Beaumont). 



38. hemipterus, Fab. 



Ichiieuinoii liemiplertis. Fab. E. S. ii. 190; Crypius hemipleriis. Fab. Piez. 91 ; Pezo- 

 machiis hciiiipleriis, (Jr. I. E. ii. 874, 9. Aptesis heiniptera, Furst. Wiegin. Arch. 1850, 

 p. 87, 9 ; Bridg. Trans. Ent. Soc. 1887, p. 364, i . Hemiteles hemiplertis. Thorns. 

 O. E. X. 993, excl. i ; Schm. Term. Fiiz. 1897, p 554, (5 9. H. dissiiniiis, Gr. I. E. 

 ii. 842; Tasch. Zeits. Ges. Nat. 1865, p. 135; Schm. Term. Fiiz. 1897, p. 530, i. 

 Var. macropt. Marsh. E.M.M. v. p. 157, 9. Cf. Phygatleuon nauoptenis. Kief. Hym. 

 u. Dip. 1903, p. Ill, 9 . 



$ . Head black, transverse, smooth, with a few obsolete punctures, and 

 contracted posteriorly ; clypeus discreted and more nitidulous than the 

 face. Antennae stout, setiform and two-thirds the length of the body, 

 with the joints not discreted. Thorax short and immaculate, not broader 

 than the head ; mesonotum nitidulous, obsoletely punctate with distinct 

 notauli ; metathorax somewhat short, coarsely rugose, with scattered 

 pubescence ; costae strong and entire with the areola smooth and somewhat 

 regularly hexagonal, with distinct costulae ; petiolar area rugulose and 

 discreted ; apophyses acute. Abdomen sub-ovate, black, with scattered 

 pubescence ; sides and sometimes disc of the second segment castaneous, 

 the third dark red with the apical angles black ; basal segment somewhat 

 slender with normal tubercles ; post-petiole quadrate, parallel-sided, 

 strongly rugose longitudinally, the second and sometimes the third dis- 

 tinctly aciculate with obvious spiracles. Legs somewhat slender, black, 

 with the anterior tibiae, tarsi and apices of femora, red ; hind tibiae and 

 sometimes femora obscurely ferrugineous basally. Wings distinctly 

 clouded with the stigma black and basally stramineous ; radix testaceous, 

 tegulae black ; areolet pentagonal and externally imperfect, discoidal cell 

 acute below ; nervellus sub-opposite and intercepted below the centre. 

 Length, 5-7 mm. 



? . Black with the seven or eight basal antennal joints red. Meta- 

 thorax rugose, distinctly areated, apophyses acute. Scutellum small and 

 gibbulous. Basal segment longitudinally rugose, apically red ; second and 

 third pale red ; sixth and seventh white-margined ; terebra nearly as long 

 as abdomen. Legs red, apices of hind femora and tibiae piceous. Wings 

 short, narrow, reaching beyond base of metathorax, infumate with half the 

 stigma, two transverse fasciae and often the apex binotated with, white ; 

 tegulae black, radix white, areolet incomplete and pentagonal. Length, 

 4-6 mm. 



The slender petiole and aciculate second segment of the $ appear to 

 ally it with the species of Fanargyrops, but the stout antennae and acute 

 apophyses render the present position of this species the more tenable, 

 especially since the $ is a robust insect. Marshall says that in its ma- 

 cropterous form, of which there are several in his collection (in Brit. Mus.), 

 the $ has the wings longer than the abdomen, with the neuration of 

 Heinitehs ; they are infuscate with half the stigma, a fascia beneath it and 

 an apical spot, white. 



It is very satisfactory to at length determine the true position of this $ , 



