Echthrus.] BRITISH ICHNia'MONS. 



Gravenhorst says that the size and shape of this species are similar 

 to Xyhphrunis latia'fer, but that the front tibiae of the 9 are somewhat 

 more slender. 



I possess a female witli the sixth to ninth flagellar joints pure white 

 above ; the two basal and the scape beneath, the facial, vertical and a 

 broad apical mark at the external orbits, the epistoma and clypeus 

 centrally, mandibles except at apex and the palpi, clear red ; linear 

 callosities above the front coxae, beneath the front and hind wings and all 

 the coxae more or less beneath, concolorous ; the wings hardly infumate 

 with a determinate fascia beneath the stigma, but no apical mark, 

 infuscate. 



Bridgman introduced this species as British flue. ci/.J and savs that 

 ]\Ir. G. C. Champion has taken a female at Aviemore. It is evidently 

 widely distributed, though probably rare with us, since the only specimen 

 I have seen was given to me by ]Mr. Frank Morey, who captured it some 

 years ago in the Isle of \\'ight ; it is, however, as above mentioned, 

 decidedly untypical. Giraud raised it in France from the Longicorn, 

 Saptrda popidnea (Ann. Soc. P" ranee, 1877, p. 410; cf. Trans. Ent. Soc. 

 1907, p. 31). 



POEMENIA, Holmgren. 



Holragr. Sv. Ak. Handl. 1860, n. 10, p. 66; Phthinodes, Tschek, Verb, z -b. 

 Ges. 1868, p. 272 ; (?) Calliclisis, Forst. Verb. pr. Rheinl, 1868, p. 169.* 



Head hardly buccate, with the face very slightly narrowed towards the 

 mouth; clypeus a little deflexed before the aj)ex and slightly emarginate; 

 the apical mandibular teeth of distinctly unequal length. Antennae 

 filiform and porrect, with the scape externally excised. Thorax cylin- 

 drical, with the notauli deeply impressed ; metathorax longer than high, 

 with the areae obsolete, its spiracles circular and a little before the centre. 

 Abdomen subpetiolate, linear-cylindrical and smooth with the six, or in 

 (J seven, basal segments elongate ; basal segment narrow, gradually and 

 but slightly explanate towards its apex, with no carinae nor canalicula- 

 tions ; two apical segments of 9 longitudinally cleft with the hypopygium 

 small and covering the base of the terebra, which is as long as or a little 

 shorter than the abdomen. Legs slender ; the hind ones somewhat long 

 with their coxae elongate ; tarsal claws in both sexes simple. Wings not 

 broad, with the areolet triangular and the nervellus emitted from above 

 the centre. 



This genus is placed in its present position by Thomson (O. E. viii. 

 774), who says its conformation is similar to that of Ephiallcs, though 



♦ Beyond the diagnosis (head cubical ; mandibles prominent and forming with the apex of the 

 almost entirely deflexed clypeus a kind of mouth ; face neither square nor protuberant ; antennae 

 not short and straight ; abdomen petiolate, not laterally compressed nor dorsally aciculate-rugose ; 

 second segment not bicarinate; hind legs not both elongate and incrassate at once) of his family 

 Xoridouiae, Foister simply indicates his genus by: — Mandibles of unequal length ; frons not dentate ; 

 front tibiae not incrassate ; hind femora not dentate beneath ; and the entire and pentagonal areolet. 

 Elliott remarks, III /i/., " There are so few characters in common to the descriptions of these two 

 genera that it is difficult to compare them, but I should say that they are not the same on these 

 grounds: — Phthiuodes has the clypeus hardly deflexed apically, and the areolet triangular; 

 Calliclisis has the clypeus deflexed throughout (a family character), and the areolet pentagonal. I 

 note that Forster distinctly says " Areolet live-sided," whereas Ashmead places it in the section with 

 ' Areolet in front wings wanting, or small, triaii^ular, or rhomboid, never large or pentagonal." As 

 to the now comparatively unimportant matter of priority, should they be synonymous, Tschek's paper 

 was read on Match 4th, 1868 ; Forster's preiace is dated February 18th, i86b; but 1 aiu not aware 

 which was first published. 



