342 M. W. R. de V. GRAHAM 



that it is identical with his genus Macroglenes ..." Curtis's description and figures 

 (i860 : 283 and Plate J, figs. 3 [$], 4 [$]) are good enough to identify his penetrans as 

 being the present one. In view of these facts, it is possible that the female in 

 Westwood's collection is the type of penetrans. Unless contrary evidence is forth- 

 coming it seems appropriate to regard it as such. 



Macroglenes oculatus Westwood. A male stands below a pink label " MACRO- 

 GLENES Westw. in Phil. Mag." and above a white label " MACROGLENES 

 oculatus Westw." It is mounted on a card and bears a pink label " oculatus Westw." 

 All these labels are written in Westwood's handwriting. This male is designated 

 LECTOTYPE ; it lacks the antennae, apart from the scape of the left antenna, but 

 is otherwise intact. Some other Pirene, including two males of oculatus, stand below 

 the lectotype, and might be syntypes (hence the labelled male is designated lectotype 

 although it might actually have been the holotype). 



Macroglenes brevicornis Thomson. In Thomson's series, only 3 specimens (1 $, 

 2 $) are labelled with the correct locality (Ringsjon). The male disagrees with the 

 description and is a Stenophrus. One female has the body hardly metallic and the 

 ovipositor sheaths not projecting far enough. The other female is greenish-tinged 

 and has a more strongly exserted ovipositor, hence it is designated LECTOTYPE ; 

 it bears a label " Rsio " (Ringsjon) . The head of the lectotype is broken off, but the 

 specimen shows a combination of small characters which indicate that it is certainly 

 the same as penetrans (Kirby). 



In the male of penetrans the hind tibial pecten (Text-fig. 282) extends virtually or 

 quite to the base of the tibia, and is composed of numerous regularly disposed hairs 

 which stand out nearly at right angles. In the female the pecten is absent in the 

 basal third or so of the tibia, and its hairs are rather less regularly disposed. 



Europe (widely distributed and common) ; Canada. 



Biology. Originally reared from Contarinia tritici (Kirby) ; in the BM(NH) 

 there is a series bred in 1936 from the same host in Southern Sweden by E. Johansson ; 

 reared from Sitodiplosis mosellana (Gehin) in Southern Sweden by E. Johansson 

 1936) and from the same host in Ottawa, Canada (see Peck, 1963 : 637). Johansson 

 gave some notes on the life-history. Imagines appear June-August ; they often 

 visit the flowers of Angelica sylvestris L., Rubus spp., and other plants. 



Pirene decipiens sp. n. 



$. Colour as in conjungens sp. n., but the marginal, stigmal and especially the postmarginal 

 veins are paler brown, although the stigma itself tends to be fuscous. The mid and hind tarsi 

 are blackish, or obscurely testaceous medially. The metallic (bluish) tinge of the head and 

 thorax is very weak. Length 1-3 to 1-5 mm. 



Head in front view slightly broader than high ; eyes large, separated by a distance which 

 is hardly equal to half their own length, 1-35 to 1-5 times as long as broad ; the facets in about 

 the upper half, or hardly more, of the eye are large, the remaining facets are small ; ocelli 

 placed in a nearly equilateral triangle, the posterior ones almost touching the eyes ; malar 

 space nearly one third the length of an eye. Antennae similar to those of conjungens (cf. Text- 

 fig. 279). 



