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NEW YORK STATE MUSEUM 



then their natural enemies would be sure to find them out promptly, 

 and not leave them to be discovered and destroyed by spiders. 



We ma} T safely conclude that spiders are of inappreciable service to 

 us in the war we are compelled to wage against the aphides. We 

 would gladly welcome them as allies in this contest, if there was any 

 evidence of their service. That some of them may feed at times on 

 some of the smaller Hemiptera would appear from the following: 



In the Entomologist, London, for July, 1894, Prof. T. D. A. Cockerell, 

 of the New Mexico Agricultural Experiment Station, has recorded his 

 finding a little Attid spider in some numbers on a grapevine in Las 

 Cruces, N. M., to the foliage of which a small leaf -hopper of the genus 

 Typlilocyba was quite injurious. Although the spider was not observed 

 actually preying upon the leaf-hopper, Prof. Cockerell entertained no 

 doubt that it fed upon it. 



The Attidce are known as " j umping spiders.'' They spin no web, but 

 capture their prey by leaping upon it, either from ambush or by 

 approaching under cover until sufficiently near for the leap. 



The Typhlocibina belong to the Hemiptera, and some of the species 

 do not exceed the Aphididce in size. 



Pentatoma juniperina (Linn.). 



The Juniper Plant-bug. 

 (Ord. Hemiptera : Subord. Heteroptera : Fam. Pentatomid^e.) 



LlNNJEUS: Systema Naturae, i, pars ii, 1767, p. 722, no. 48 (original description 



as Cimex juniperinus). 

 Amyot-Serville : Hist. Nat. des Insectes — Hemipteres, 1843, p. 132 (brief 



description). 



Glover : " Manuscript Notes from My Journal. Order Hemiptera," 1876, pi 



7, f . 21, p. 57 (listed). 

 Provancher : Petite Fauna Entomologique du Canada — Hemipteres, iii, 1886, 



pp. 41-2, pi. i, f . 4 (as Lioderma ligata). 

 Saunders: Hemiptera Heteroptera of the British Islands, 1892, pp. 28-29 



(description). 



Van Duzee : List of Hemiptera of Buffalo and Vicinity; in Bull. Buff. Soc. 

 Nat. Hist., v, 1894, p. 171 (fooi-plants). 



A correspondent at Brockport, N. Y., has sent me (June 14) several 

 examples of a plant-bug which he states had nearly destroyed his crop 

 of peaches in 1892, by puncturing them and sucking their juices until 

 they became rough and pithy and entirely worthless: 



