Vol. X,\ix| ENTOMOLOGICAL NKW>. 367 



IV. A NEW SPECIES OF THE GENUS THRH-SAIMIIS GILLETTE. 12 

 In October, 1917, specimens of a species of Thripsaphis 



were received by the writer from Mr. G. F. Ferris of Leland 

 Stanford Junior University. These had been found on the 

 leaves of Carc.v sp. near San Francisquito Creek, Santa Clara 

 County, California. Not being able to identify them with any 

 known species, the writer herewith describes them as a new 

 species, 



Thripsaphis caricicola nov. sp. (Text figs. 2-fi). 



Cotype specimens are in the writer's private collection in 

 Riverside, and in the U. S. National Museftm. Washington, 

 D. C. 



Locality: Santa Clara County, California. Collector: A. P. 

 Batchelder. Date: October 26, 1917. Host: Carc.r sp. 



Alatc znviparous female. General body color yellow and dusky 

 black. Head yellow with margins dusky. Antennae dusky to black, 

 except base of segment three, which is pale. Eyes reddish brown. 

 Beak yellow with tip black. Prothorax dusky with median yellow 

 stripe. Thoracic plates black. Legs yellowish with tarsi and tips of 

 tibiae and of femora black. Abdomen yellow with four rows of 

 darker spots, two lateral and two sublateral. Cauda and anal plate 

 dusky. 



Body rather long and narrow, resembling somewhat that of a thrips. 

 Head about two-thirds as long as wide between the eyes. Front with 

 a prominent semiquadrangular protuberance (fig. 2), which is about 

 as wide as long, and as large as the first antennal segment. Antennae 

 (fig. 4) about three- fourths as long as the body. No antennal tuber- 

 cles. Segment III the longest, being but slightly shorter than IV and 



V, or V and VI combined. V about five-sixths as long as IV, which 

 in turn is slightly shorter than VI. VI base and spur equal. The 

 usual primary sensoria on V and VI and accessory sensoria on VI. 

 Secondary sensoria only on III, being circular, equal-sized, and placed 

 in a more or less straight row on the basal three-fourths of the 

 segment: n to 12 in number Beak short scarcely reaching first coxae. 

 No lateral tubercles on the prothorax or abdomen. Cornicles (fig. 5) 

 merely pores, which are about one-sixth as wide at the mouth as the 

 length of the hind tarsi. Cauda (fig. 5) distinct, knobbed, about two- 

 thirds as long as hind tarsi. Anal plate (fig. 5) large, prominent, deep- 

 ly bilobed. Legs long and slender, normal throughout. Wings (fig. 6) 



12 Gillette, C. P. Two new Aphis genera and some new species. 

 Can. Ent, 49: 193-196. iyi7- 



