\'ol. Xxixl ENTOMOLOGICAL NEWS. 211 



it is very closely related ; differs in being shorter and more 

 compact and in the structure of the male genital claspers. 



$. Length 4.9 mm., width 1.7 mm. Bright red with fuscous and 

 hlackish as exhibited in media, shorter and more compact, the an- 

 tennae shorter also; second antennal segment linear, in length (1.31 

 mm.) less than the width of the pronotum (1.48 mm.) at the base. 



$ . Similar to the male in size and coloration. 



This species was found breeding on a purple flowering weed 

 that grew in clumps along the small stream that flows by He- 

 lotes. Few adults were out at the time of collecting, but the 

 nymphs were found rather plentiful. 



Holotypc: $ , July i. 1917, Helotes. Bexar Co.. Texas (H. 

 H. Knight) ; Cornell University Collection. 



Allotype : Taken with the type. 



Paratypcs: 4 ^ , 5 9 . taken with the types. 



Lopidea robiniae (Uhler). Proc. Ent. Soc. Phila., 1:24, IS'll. 

 (PI. XIII, fig. 2). 



This is a common and well-known species in the Eastern 

 States, breeding on locust (Robiuia pseud n-acacia) from which 

 its name is taken. The writer has examined specimens from 

 Georgia, North Carolina, District of Columbia, Pennsylvania, 

 New York, Connecticut and Massachusetts. 



This species has in the past frequently been confused with 

 coiifl'.tois and even Uhler was willing to place his robiniae as 

 a variety of media Say (Proc. Boston Soc. Nat. Hist., 19: 406, 

 1878). The species is easily distinguished by the male genital 

 claspers (PI. XIII, fig. 2) which are very characteristic; the 

 number of teeth on the basal part of the right clasper and 

 fine spines at the tip of the curved part may vary slightly in 

 number but the general form of the clasper is distinctive. 



Lopidea confluens (Say). Heterop. Hemip. N. Amer., p. 2:5, 1831. 

 (PI. XIII, fig. 3). 

 This species is slightly more ovate and robust than robiniae, 

 is freciuently very similar in coloration but usually more orange 

 or reddisli. It has frequently been labeled robiniae in collec- 

 tions and the only certain way of determining the yellow forms 

 is bv examining the male genital claspers. 



