MICniGAX STATE POMOLOGICAL SOCIETY. 333 



as Mr. Cresson informs me, Westmael in his Braconides de 

 Belgiquc give ouly two, which is the number in our insect. 



SiGALPHTJs CuRCULiOKis, Fitch— //ttfl^ro— (Fig. 4, « male ; b female) 

 Head black, sub-polished and sparsely covered on the face with short 

 whitish hairs ; ocelli touching each other ; labrum and jaws brown ; 

 palpi pale yellow : antennae (Fig. 4,c) 27-jointed, filiform, reaching, when 

 turned back, to middle joint of abdomen or beyond, the bulbus and 

 small second joint rufous and glabrous, the rest black or dark brown, 

 though 3-10 in many specimens, are more or less tinged with rufous ; 3-14 

 very gradually diminishing in size ; 14-37 sub-equal. Thorax black, 

 polished, the metathorax distinctly and broadly punctate, and the rest 

 more or less distinctly punctate or rugose, with the sides sparsely pubes- 

 cent. Abdomen pitchy-black, flattened, the dorsum convex, the venter 

 concave, and the sides narrow-edged and slightly carinated ; the three 

 joints distinctly separated and of about equal length ; the first joint hav- 

 ing two dorsal longitudinal carina? down the middle ; all densely marked 

 with very fine longitudinal impressed lines, and sparsely pubescent. 

 (Dr. Fitch in his description published in the Country Gentleman, under 

 date of September, 1859, state, that these lines leave " a smooth stripe 

 along the middle of its second segment, and a large smooth space on the 

 base of the third ;" which is true of a few specimens, but not of the 

 majority, in which the impressed lines generally cover the whole abdo- 

 men.) Ovipositor longer than abdomen, but when stretched in a liae 

 with it, projecting backwards about the same length beyond ; rufous, 

 with the sheaths black. Legs pale rufous with the upper part of hind 

 tibiai and tarsi, and sometimes the hind femora, dusky. Wings subhya- 

 line and iridescent, the veins pale rufous, and the stigma black. Length 

 female 0.15-0.16 inch, expanse 0.30 ; male diifers only in his somewhat 

 smaller size and in lacking the ovipositor. In many specimens the 

 mesothorax and the eyes are more or less distinctly rufous. 



Described from 50 females, 10 males bred June 23d-July 29th, 1870, 

 from larvae of Conotrachelus nenuphar, and two females obtained from 

 Dr. Fitch. 



Larva (Fig. 5, a) — white, with translucent yellowish mottlings. 



Papa (Fig. 5, c) — female — 9.17 inch long; whitish, the members all 

 distinct, the antennae touching hind tarsi, the ovipositor curved round 

 behind, reaching and touching with its tip the third abdominal joint, 

 which afterwards forms the apical joint of imago; five ventral joints, 

 which in the imago become much absorbed and hidden, being strongly 

 developed. 



Cocoon (Fig. 5, b) — Composed of one layer of closely woven yellowish 

 silk. 



