Insect Enemies of Greenhouse and Ornamental Plants 15 



COCOON. 9 mm. long (about % inch), thickness about 5 mm., 

 oval in shape, tough leathery and fairly smooth. Color, sepia. 



MALE. Wing-spread, 14 mm. (.9/16 inch). Length, 7 mm. 

 Large pectinate antenna?. Head and pronotum coarsely punctured. 

 Head, antennas and body, black. 'Cerci and tip of the last abdominal 

 segment, orange. Legs yellow, with the trochanters and basal two- 

 thirds of the femora, brownish black. 



FEMALE. Wing-spread, 20 mm. (little over % inch). Length, 

 8 mm. (5/16 inch). Robust, head and antenna? black. Thorax 

 coarsely punctured, yellow with a large shield-shaped black spot on 

 meso-thorax, extending from the anterior margin and covering about 

 two-thirds of the space between the parapsidal grooves. On either 

 side are a pair of L-shaped black marks which approach each other 

 posteriorly. Posterior margin of the mesothorax, postscutellum and 

 prosternum, black. Abdomen yellow with dorsal surface of 3rd, 4th, 

 5th, 6th, and the anterior portion of 7th segment, black. Legs yellow 

 with the outer surface of hind femora, the apex of the middle and hind 

 tarsi, dark. 



In New Jersey, spraying with arsenate of lead has proven sat- 

 isfactory ; also, during the summer of 1916 the pupre were heavily 

 parasitized by Monodontomerus dentipes Boh. 



An Orchid Plant Bug 



Tenth ccoris bkolor Scott 16 (Fig. 26, 27) 



This blue and red member of the family Miridce is occasionally 

 met with in orchid houses and it is a common occurrence to find 

 the leaves of Cattleya orchids imported from South America covered 

 with irregular, white spots 1 to 2 mm. in diameter, due to the ab- 

 straction of chlorophyll by these bugs. The adult is an attractive 

 bug 1 mm. long, having the head, pronotum and external edge of 

 the upper wings of a pronounced brick red color and the thorax 

 and the remainder of the upper wings a bright blue. The adults 

 and nymphs live on the under-sides of the leaves, sucking the juices. 



Cattleyas are especially subject to attack and Lallias and 

 Sophronitis often show the characteristic spotting of the leaves. 



Three Orchid Weevils 



(Fig. 28 to 32) 



The following notes relate to species which have been found 

 associated with orchids growing in New Jersey greenhouses. Inas- 

 much as their life histories are imperfectly known, it is impossible 

 to devote more than a few lines to each one. 



ISFrom Weiss, H. B., 1917. Some unusual orchid insects. In Ent. News, 

 v. 28, p. 24. 



