356 ENTOMOLOGICAI, NEWS [Oct,, '15 



A new Species of Campoplex (Hym., Ichneumonidae). 



By Henry J. Franklin, Superintendent of the Cranberry 

 Station of the Massachusetts Agricuhural Experi- 

 ment Station, East Wareham, Mass. 



Campoplex variabilis n. sp. 



2 — Length 8 mm. ; greatest diameter of lateral ocelli of approxi- 

 mately the same length as the shortest distance between those ocelli 

 and the nearest eye-margin. 



Head and thorax black and thinly clothed with silvery pubescence. 

 Abdomen with first segment black ; second dorsal segment dark brown, 

 but shading into ferruginous toward the apical margin ; second ven- 

 tral segment entirely stramineous ; third and fourth segments entirely 

 ferruginous ; fifth segment with basal portion ferruginous and apical 

 part black, the line of demarcation between the two colors being very 

 irregular and rather indefinite ; the remaining segments entirely black. 



Antennae dark brown. Mandibles dark, but slightly tinged with 

 reddish brown. Palpi dark brown. Tegulae dark brown. All the coxae 

 and trochanters black; front femora mostly yellowish-ferruginous, but 

 somewhat darkened toward their bases ; middle femora dark brown for 

 the most part, but light ferruginous or stramineous apically ; fore tibiae 

 and tarsi stramineous ; middle tibiae stramineous, but somewhat dark- 

 ened toward their bases ; middle tarsi dark ; hind legs entirely dark. 

 Wings hyaline and slightly darkened. 



Type. — The specimen from which the above description 

 was made came from Wareham, Massachusetts, and is de- 

 posited in the collection of the Massachusetts Agricultural 

 College. This specimen and six others of the same species 

 were bred by the writer from the larvae of Epelis truncataria 

 var. faxonii Minot, from 25 to 30 per cent, of the Bpelis larvae 

 being infested with this parasite. They emerged from their 

 host larvae and formed their cocoons between July 23 and 

 August 8, 1913. The cocoons were elliptical in shape and 

 coffee-brown in color and ranged from 6.5 mm. to 7.5 mm. in 

 length. The adult parasites emerged on dates ranging from 

 June 12 to June 2y, 1914. These specimens showed much 

 variation in coloration, and three color variants based on this 

 variation are here described : 



Color Variant 1. — Like the typical form, but with entire apical half 

 of second dorsal abdominal segment ferruginous, basal two-thirds of 

 fore femora darkened, middle femora entirely dark, basal halves of 

 middle tibiae dark, and apical segments of fore tarsi brown. 



