I 



I 



Dec, 1914] Leng: New Species of Arthromacra. 285 



) 



Eyes distinctly separated; antennje slender, in length equal to about 1.5 

 times that of head and thorax combined, joints eleven to fifteen much elon- 

 gated, the hairs on basal half of flagellum about equal in length to the joints 

 on which they are situated. Mesonotum with numerous short setulose hairs 

 on disc, the posterior half with two rows of three distinct bristles, situated 

 on the lines generally occupied by dorso-centrals ; the group of bristles in 

 front of wing-base strong; scutellum short, its margin with about six bristles. 

 Surface of abdomen with very short hairs. Legs of moderate strength, fore 

 femora slightly thickened ; thorns on femora as follows : fore, five or six ; 

 mid, one or two ; hind, five or six ; dorsal surface of hind tibias with the hairs 

 setulose; basal joint of hind tarsi almost as long as remaining joints together; 

 fourth joint very short, not over half as long as fifth, the latter without ventral 

 spines ; claws equal, rather short, about half as long as fifth joint, each with 

 a distinct central tooth on inner side at middle. Third vein extending more 

 than two thirds of the wing-length ; first vein extending two fifths of the length 

 of last section of third ; media forking at cross vein, the base of posterior 

 branch indistinct ; cubitus forking slightly distad of the cross vein. 



Male. — Similar to the female in color. Plumes of antennae golden yellow, 

 joints eleven to fifteen with short white hairs. Thoracic pruinescence very 

 sparse. 



Eyes narrowly separated ; length of antenna about twice that of head and 

 thorax combined. Bristles on posterior half of thorax stronger than in female. 

 Hypopygium large, basal portion of lateral arm much swollen and nearly twice 

 as long as the small clawlike apical portion. Legs more distinctly setulose 

 than those of the female, all the tibiae with series of distinct setulae ; tarsi as 

 in female ; claws equal, simple. Venation as in female. Length, 1.75-2.5 mm. 



Type locality: Monticello, 111., June 21-28, 1914 (J. R. Malloch). 



The spines on mid femora are often difficult to see and for this 

 reason I have inserted this species in the sections of table dealing with 

 species '" with " and also " without " spines. 



I 



A NEW SPECIES OF ARTHROMACRA WITH NOTES 

 ON OTHER SPECIES OF LAGRIID^. 



By Charles W. Leng, 

 West New Brighton, N. Y. 



Col. Wirt Robinson has collected in Nelson Co., Virginia, a con- 

 siderable number of a species of Arthromacra which differs from the 

 previously described species by the vivid green color, the smooth, shin- 

 ing, distantly punctate thorax and especially by the great length of the 

 last joint of the antennas of the male. This species should be dedi- 

 cated to him in recognition of the work he has done, though busy 



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