NEUROTERUS FUMIPENNIS. 133 



drying up or becoming rotten. By the middle of 

 June most of the females have laid their eggs on the 

 under side of tender and youngish leaves of the oak. 

 Widely distributed. 



2. Neuroterus punotatus. 



Spathegaster punctahis, Bignell, E. M. M., iii (2), 176. 



"Black ; legs flavous, upper side of bind coxae, antennas except the 

 first two or three joints, which are lighter fuscous. Eyes not so large 

 nor so prominent as those of baccarum. Thorax: the mesonotuin 

 trilobate, with deep furrows continued to the scutellum, where the 

 punctures are very shallow, the sides closely punctured. Wings 

 hyaline. 



" Length 2*5 mm. 



" At first sight it has all the appearance of Spathe- 

 gaster baccarum, but when closely examined the sculp- 

 ture of the thorax separates it from that species, and 

 the wings are free from fuscous clouds. 



" In baccarum the mesosternum is separated from 

 the mesonotum by a raised rounded ridge, much more 

 prominent than that of the species now described, and 

 the furrows on the mesonotum are much shallower 

 and shorter (Bignell, 1. c.)." 



Bred by Mr. Bignell from oak buds which appa- 

 rently were not expanded or distorted. 



The inquiline is Saphylotus connatus. 



Plymouth. 



3. Neuroterus fumipennis. 



PI. I, figs. 1 {tricolor) and 1 a {fumipennis) ; PI. XVI, 



fig. 5. * 



Neuroterus fumipennis, Htg., Germs. Zeits., iii, 339; Tasch., 

 Hym. Deut., 137 ; Mayr, Eichen- 

 gallen, 45, pi. ii, fig. 64 ; Europ. Cyn., 

 38; Thorns., Opusc, 789; Adler, 

 B. E. Z., xxi, 232 ; Zeits. wiss. Zool., 

 1880, 164, pl.x, fig. 4; Licbt., Cyn., 

 18, pi. i, fig. 4. 



