BioStor
Sign in using Mendeley
THE CANADIAN ENTOMOLOGIST 19 two lateral, rosette-like groups of spines; abdoniinal s[)iiies directed posteriori}-; all spines bearing long hairs; entire dorsal surface bears smaller spines inter-n^.ixed with those mentioned above. Adult.-— Mycotretus piilchra. This was described by Sa\-in 1<S2() (Jour. Phil. Acad. Nat. Sci. V, 301; ibid. II, 345) under the generic name Tritoma. It is about 3 to 3.5 mm., long, ovate, with the head, thorax and scutellum black, the elytra red with the apical third obliquely black, the black extending forward on the sides almost to the humeri. The head and thorax are finely and sparsely punctured, the punctures of ehtral strict are fine, the intervals finely punctate. Smith-records it from Hudson County and Woodside, N.J., with the state-ment that it was once common. Blatchley^ states that it is frequent in Marion, Vigo, Knox and Posey Counties, Indiana, April 9-June 19, and in Chagnon's Coleoptera of Quebec^ it is listed from Rouville Co., June, Montreal Isl., June and La\al Co., August. A NEW GENUS AND SPECIES OF APHID FROM JAPAN. (HEM.) BY RYOICHI TAKAHASHI. Forest Experiment Station, Meguro, Tokyo, Japan. This interesting aphid, which is found in the leaves of Podocarpus macro-phylla, is rather inactive in habit. Both winged and wingless forms appear in May and later, in the second and subsequent generations. The sexuparse are wingless, but most interesting is the fact that the oviparous female, as well as the male, is winged, these forms appearing during the month of September. As is common for species belonging to the Siphonophorina, wingless viviparous females may give birth to both winged and wingless progeny, but winged females produce only wingless forms. Neophyllaphis, new genus. This genus is closely related to Phyllaphis Koch, but differs from it aS follows: 1. Sensoria on the third segment very peculiar in shape, being trans-versely narrow. 2. Body of the wingless form covered with white secretions which are not thread}-. 3. The oviparous female is winged. Winged female. — Body rather narrow and without hairs. Frontal tubercles absent. Antenuit nearly as long as body, six-segmented, spur of last segment \-ery small, sensoria on third segment transversely narrow (ring-like in the ovi-parous female). Ocelli prominent. Abdomen without tubercles. Wings hyaline, the third oblique twice branched. Cornicles very small and much wider than long. Cauda not globular, but is constricted at base and slightly so at middle. Anal plate slightly sinuate. Empodial hairs absent. Wingless female. — Similar to the winged female. Body with a white pulverulence. Eyes very small. Third antennal segment without sensoria. Type. — Neophyllaphis podocarpi, n. sp. 2. Insects of New Jersey (X. J. St. Miis. Rept. 1909). •S. Coleoptera of Indiana, p. .546. 4. Prelim. List Ins. Prov. Qiiebcr, Colcop. (1917, Siippl. Kept. Quebec Sec. Protec. Plants.) January, 192(J

Identifiers

Export

A new genus and species of Aphid from Japan (Hem.)

R Takahashi
Canadian Entomologist 52: 19-20 (1920)

Reference added over 3 years ago

Tweet

Viewer

Page 19
Page 20
Title
áàåäçéèÉöøüæœß
Authors
One author per line, "First name Last name" or "Last name, First name"
Journal
ISSN
OCLC
Series
Volume
Issue
Starting page
Ending page
Date
Year
URL
DOI
 Update 
blog comments powered by Disqus
Page loaded in 0.506 seconds