1888 THE BUTTERFLIES OF NEW ENGLAND. 



This species is a true Encyrtus and belongs to the chalcostomus group, 

 approachino' very closely to E. lunatus Dalm. It has no connection with 

 E. swederi with which Dr. Packard compares it and which belongs to 

 Comys Foerster. All of the chalcostomus group, including lunatus, are 

 parasites of Coccidae, the only possible exceptions being barbarus and 

 roo-enhoferi, the habits of which are not known. Moreover, all are para- 

 sites of the genus Lecanium. All that we know of E. montinus is that it 

 was "found alive in an old chrysalis case" of Oeneis semidea by Mr. San- 

 born in the White ^Mountains, and there is nothing is this information to 

 contradict the hypothesis that this specimen came from a Lecanium, per- 

 haps on the same plant, and that its presence in the old chrysalis was purely 

 accidental. It may be stated in further support of this view that no true 

 Encyrtus is known in Europe to have been bred from a lepidopteron, and 

 no species of the whole subfamily Encyrtinae from any Diurnal. Encyrtus 

 bucculatricis Howard is the only American exception to the former rule. 

 It is very probable, therefore, that E. montinus is not a butterfly parasite 

 and I introduce the redescription for the reason only that it has been so 

 considered by others. There is, however, still a bare possibility that it 

 may yet turn out to be a parasite of the White Mountain species. 



Genus COPIDOSOMA Eatzeburg. 



Female. — The antennae arise near the border of the mouth; the scape is Ions; and 

 slender ; the sis-jointed f unicle long and slender, or short and comparatively thicker ; 

 the clnb is either long, delicately bent and somewhat rounded at tip, or it is thicker 

 and mai-kedly obliquely truncate. This truncation is produced by the drying of a strip 

 of more delicate membrane upon one side of the club. Front and vertex closely punc- 

 tured, without larger deep punctures. The raesoscutum and often the scutellum have 

 with most species a sculpture which was called by Ratzeburg "schuppig" (scaley), 

 and also a thicker punctuation with round or aciculate punctures. The marginal vein is 

 either lacking, or it is a little shorter than the stigmal. The wings are hyaline. The 

 ovipositor is very long, but may also be entirely hidden. 



ilfaic. —The male resembles the female in the form of the body, in the punctuation, 

 and also in the relative proportion of the wing veins, diflfering to a marked degree 

 only in the antennae. These are given off near the border of the mouth as with the 

 female; the scape is long and slender, the pedicle shorter than the first f unicle joint; 

 the funicle is rather thickly covered with short hairs (the hairs shorter than the 

 joints), with the joints separated above more than below ; the club is about as thick as 

 the funicle. The base of the scutellum has a more or less delicate longitudinal carina, 

 but no furrow. 



Copidosoma turni (Packard). PI. 89, fig. 5. 



Encyrtus turni Packard. 



PcmaZc— Antennae short and curved ; club large and strongly truncate obliquely from 

 tip nearly to base ; first funicle joint much shorter than pedicel and as thick as long ; 

 succeeding funicle joints widen to joint 6, which is considerably wider than long. 

 Punctation of face very delicate ; mesoscutum delicately shagreened ; mesoscutellum 

 With a delicate scaly sculpture. Marginal vein of fore wings slightly shorter than the 

 stigmal. Color : Head and mesoscutum bright metallic green or blue, somtimes head 

 appearing blue and scutum green; pronotum and mesoscutellum copper-bronze; ab- 



