Insects. 



8307 



And now as to the female, the following will be found to be the dis- 

 tinctive characteristics of the two species. The head is generally 

 speaking darker, and not only brown but brownish black, without any 

 paler spots below the eyes or above the trophi. The antennae also are 

 darker, bluish black even, with the exception of the two basal joints, 

 which have a yellow tint ; the antennae are also somewhat thicker in 

 the middle and at the end. The breast of the thorax has almost 

 always a black shining spot ; the scutellum is almost entirely yellow. 

 The legs are of a more obscure yellow, that is to say a yellow mixed 

 with gray or brown, the extremities being of a somewhat darker reddish 

 brown. 



The saw and ovipositor (fig. 6) are nearly the same as in the female 

 of L. Pini ; only it appeared to me that the teeth of the saw in this 

 species were generally smaller. 



I am not aware of the appearance of the egg nor of the place in 

 which it is deposited ; it is probably laid in a slit in a pine leaf, as in 

 the case of the allied species. 



This species is observed in Germany and the Netherlands. There 

 is no reason for supposing it may not be found in other contiguous 

 European countries or in countries having the same mean temperature, 

 although I am not acquainted with any record of its appearance there. 

 Dahlbom and Lepeletier make no mention of this species. 



In May, 1856, and April, 1857, two ichneumons appeared from 

 cocoons of this insect which my friend Wttewaal had in his house, 

 that on the latter date being Tryphon marginatorius, F. (Grav. Ichn. 

 ii. p. 191), and that on the former date a species of Tryphon, which 

 appears to me to be undescribed. Hartig does not mention that he 

 reared any parasitic Hymenoptera from the cocoons, but says that some 

 maggots made their appearance which afterwards produced Tachina 

 bimaculata. Ratzeburg, however, in his ' Wirths-System,' gives the 

 names of three species of ichneumon which had lived in the larvae of 

 Lophyrus similis, namely, Campoplex argentatus, a very common 

 species in various sawfly larvae, Entodon canaliculatus and Torymus 

 minor. I have had no opportunity of determining which species of 

 Pteromalinus I obtained from the larvae which I first found (1837 or 

 1838). 



