100 Eev. T. A. Marshall's monograph of 



complete tlieir transformations inside, and finally emerge 

 through a hole in the 10th — 12th segments. The species 

 has been reared on the Continent from Agrotis agathina, 

 Dup. ; by Brischke from Caradrina alsines, Brahm, 

 Noctua haia, Fab., Eupithecia castigata, Hiib., Antidea 

 ruhidata, Fab., Tortrix rosana, L., and Dictijopteryx 

 Holmiatia, L. Ritsema found it with Rhogas testaceus, 

 Spin., in birds' nests at Haarlem in January, showing 

 that it hybernates as an imago. 



The synonym R. pallidus, Bouche, ought to be erased, 

 as referring to R. testaceus, Spin. The occurrence of 

 the latter species in this country is merely hypothetical. 

 The name was introduced by Haliday, who, relying upon 

 the descriptions of Spinola and Nees, confused it with 

 circumscriptus, and treated that name as a synonym. It 

 is necessary therefore to discard testaceus until some one 

 can produce an authentic British specimen. From a 

 remark of Haliday it seems certain that no specimens of 

 that species were mixed up with those which he examined. 

 Had this been the case he would not have said (Ent. 

 Mag., iv., 102) that the antennae of testaceus possess 

 more joints than those of circumscriptus. Rhogas 

 testaceus (Spin., Ins. Lig., ii., 131 ; Eeinh., Berl. ent. 

 Zeit., 1863, p. 270) has the antennae 33— 35-jointed ; 

 the 1st abdominal segment in the (? is at most as long 

 as its apical breadth ; in the ? , distinctly shorter ; the 

 2d segment in the <? is slightly transverse, in the ? 

 conspicuously so. The colour is uniform testaceous, or 

 the metathorax and 1st abdominal segment are marked 

 with fuscous. It is a parasite of Dicranura vimda, L., 

 bifida, Hiib., Tortrix rosana, L., Depressaria applana, 

 Fab., Cilix glaucata. Scop., Porthcsia auriflua, L., Plusia 

 gamma, L., and Eupithecia sohrinata, Hiib. Compare 

 Eatz., Iclm. d. Forst., ii., 35, pi. ii., fig. 4 (wing). 



11, Rhogas vittiger, Wesm. 

 Aleiodes vittiqer, Wesm., Nouv. Mem. Ac. Brux., 1838, 



p. 112, ? . 

 Rogas vittiger, Reinh., Berl. ent. Zeit., 1863, p. 267, 



<? ? . 

 R. seriatus, Schilff., F. G., clvi., 12. 



Pale testaceous ; occiput, or whole head (except the orbits), disk 

 of the thorax (except the scutellum), a patch beneath the wings, 

 1st abdominal segment almost to its apex, and 3d pair of femora 

 broadly at the apex, black ; tips of the anteuu^e, and two oblong 



