THE JUMPING PLANT-LICE OE PSYLLID^ OF THE NEW WOKLD. 51 



Thorax broad, strongly arched, smooth. Forewings about two 

 and one-third times as long as broad, rounded broadly at apex, pale 

 yellow and scarcely shining, moderately transparent; pterostigma 

 long, rather large; first marginal cell about twice as large as second. 



Genitalia. — 2Iale. — Anal valve relatively narrower than in cali- 

 fomica, oblong-oval in profile; forceps similar in shape to calif arnica. 

 Female. — Genital segment a Httle longer than preceding ventral 

 sclerite, very acute; dorsal valve scarcely longer than ventral. 



Described from one male and five females from Wasliington, Dis- 

 trict of Columbia (Schwarz), on RJius glahra, in May. These are 

 apparently paratypes. Recorded also from Massachusetts and St. 

 Louis, Missouri, by Mr. Schwarz. 



Ty^e.—C^t. No. 8148, U. S. Nat. Mus. 



CALOPHYA DUBIA, new species. 

 Fig. 420. 



Length of body 1 .5 mm, ; length of forewing 1 .8 ; width of head 0.68. 

 General color (male) head and thorax black dorsad, venter and abdo- 

 men yellow; legs, genal cones, antennse (except tips) yellow. Female 

 (see note below) honey yeUow, as injlavida. Body rather small. 



Vertex a little more flattened than in Jlavida, more deeply impressed 

 discally, rounded down in front, smooth; genal cones well separated 

 at base, a little longer than basal width, curved outward and sub- 

 horizontal, acute at tip, not pubescent. Antennae nearly as long as 

 width of head, rather thick. 



Thorax arched, strigate dorsad. Forewings clear, or very slightly 

 yellowish, transparent, rounded at apex rather narrowly; pterostigma 

 short and broad; first marginal cell fully twice as large as second, 

 or larger. 



Genitalia. — Male. — Genitalia similar in general to first species; 

 anal valve longer than broad, posterior margm arcuately rounded; 

 forceps as in californica. Female. — Genital segment very short, 

 about as long as preceding ventral sclerite ; dorsal valve a little longer 

 than ventral. 



Described from one pair from Colorado, with no data accompanying 

 them. 



Type. — Cat. No. 18078, U. S. Nat. Mus. Female in author's collec- 

 tion. 



This species seems to be distinct from all others, but it is with 

 hesitation that it is described as new because of the absence of data. 

 There can be no certainty that the female belongs to the same species 

 as the male described above, but in spite of the color differences, 

 the structure seems to indicate that they are the same species. 



