Charles W. Johnson.
A New Species of Criorhina from New England.
Psyche 24(5):153-154, 1917.

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PSYCHE, 1917,
VOL. XXIV, PLATE VIII.




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PSYCHE, 1917.
VOL. XXIV, PLATE IX.
kkRc~~m-Ha&ts of the Sno?.u$y.




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19171 Johnson-A New Species of Criorhinu from New England 153 Speiser? 1899.
~ber Reduction der Flugel bei ectoparasitischen Insekten, Insekten-Borse, XVI, 1899, pp; 117 and 122. Thomas, Fr., 1890.
Massenfang von Chionea araneoides Dalm., Entom. Nachrichten, XVI, H. XX, No. 20, pp. 305-316. Washburn? F. I.., 1907. Chionea valga in Minnesota? Canad. Entom., Vol. 39, p. 103.
Plate VIII.
Fig. 1.
Chionea alpina Bezzi, male, dorsal view. Fig. 2.
Ventral side of another individual, male. Fig. 3.
Head of male, lateral view.
Fig. 4.
Ovipositor of female, dorsal view.
Plate IX.
Fig. I. Chionea alpina, male, habitus. (Freshly killed individ- ual.)
Fig. 2. Antenna of male.
. Fig. 3, Terminal portion of same antenna? slightly turned aside.
Fig. 4.
Antenna of another individual.
A NEW SPECIES OF CRIORHINA FROM NEW ENGLAND. Boston, Massachusetts.
Criorhina intermedia sp. nov.
8. Face covered with white tomentum; facial tubercle, a line above the oral margin (narrowly separated from the tubercle) and the cheeks, shining black, frontal triangle with yellowish tomen- turny antenna1 process, the narrow front and vertex black, occiput grayish pruinose, pile yellowish, antennze black, base of the third joint brownish, arista black. Thorax black, in front of the trans- verse suture grayish pruinose, behind shining black, the long pile in front of the suture, on the pleura, post-alar callosities and scutel- lum, yellow, the remaining pile black, forming a broad band be- tween the wings. Abdomen; the first and second segment gray- ish pruinose, with long yellowish pile, the remaining segments



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154 Psyche [October
shining black, with black pile.
Legs black, tips of the tibiz and
all of the tarsi reddish brown, the upper side of the hind meta- tarsi black, front and middle femora fringed below with long yel- low hairs, posterior tibia strongly curved, under side of the hind tarsi with yellow tomentum. Halteres light brown. Wings hya- line, all the veins margined with brown, most prominent on the cross-vein, stigma yellow, squamz brown, fringed with brownish hairs. Length, 16 mm.
The female has the front about one-fifth the width of the head, dusted with brown and with brownish hairs, face yellowish pol- hose with a wide facial stripe.
One male and six females collected by the writer at Jaffrey, N. H., June 15 and 18, 1917, on the flowers of the choke cherry. One female, Dartmouth, Mass., April 25, 1916 (N. S. Easton). Holotype, allotype and four paratypes in the collection of the Boston Society of Natural History. One paratype in the Museum of Comparative Zoology and one in the author's collection. In one of the specimens from Jaffrey and the one from Dartmouth, Mass., the band of black hairs .on the thorax is absent, while in some of the others it is less prominent than in the holotype. The series vary in size from 12-16 mm.
The species is readily separated from C. gerbom Walker, in hav- ing the tibize black and in the absence of yellow pile on the abdo- men beyond the .second segment. The Jaffrey specimens would indicate that it appears later in the season than C. verbom. My records for the appearance of the latter range from March 13 to April 20. It seems to be more closely related to C. nigriventris .
Walton, from which it is separated by the yellow pile on the abdo- men.




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