No. 34-] HEMIPTERA OF CONNECTICUT I MIRIDAE. 551 



scutellum, hemelytra except outer margins, and genital segments, 

 black ; legs black, coxae reddish, femora more or less pale at base. 



New York. 

 O. clandestina van dorsalis Knight. 



Bull. Brook. Ent. Soc, xiii, 115, 1918. 



Length 7.1mm., width 2.8mm.; black; base of head, juga, 

 lora, genae, sides of pronotum, median vitta on basal half of 

 scutellum, and venter except genital segments, orange colored; 

 bases of middle and posterior femora pale to orange. 



This variety is a pest on lima beans in Louisiana. 



New York, Ohio. 

 O. clandestina var. ventralis Knight. 



Bull. Brook. Ent. Soc, xiii, 115, 1918. 



Similar to variety dorsalis except that the venter is fuscous to 

 black ; orange color being replaced by yellowish to pale. 



New York. 



Platytylellus Renter. 



Key to Species. 



1. Length of antennal segment i not equal to width of vertex 2 



Length of antennal segment i equal to or greater than width of 



vertex 3 



2. Pronotal disk with median red vitta extending to join with red 



scutellum ; antennal segment i, in length, not equal to more than 



one and one-half times the lateral width of an eye 



(p. 552) rubrovittatus 

 Pronotal disk without median red vitta ; antennal segment i, in 

 length, equal to twice the lateral width of an eye. . (p. 553) nigricollis 



3. Pronotum uniformly orange or fulvous, hemelytra black 4 



Pronotum with black, sometimes bright red but in such case the 



hemelytra red or pale on lateral margins 6 



4. Scutellum orange-yellow ; tibiae clothed with short hairs, length 



of hairs not equal to thickness of segment; male genital segment 



without tubercles 5 



Scutellum black; tibiae thickly clothed with prominent long hairs, 

 length of certain hairs greater than thickness of segment; male 

 genital segment with a prominent tubercle at base of each clasper 



(p- 557) nigroscutellatus n. sp. 



5. Width of pronotal collar slightly greater than width of head; 



larger, length 8.7 mm (p. 556) insitivus 



Width of head greater than width of pronotal collar ; smaller, 

 length 6.8-8 mm insitivus var. angusticollis n. var. 



6. Male with a prominent lateral tubercle near base of left genital 



clasper ; pronotal disk uniformly red, or red and black, in the 

 latter case the black always formed along median line but some- 

 times spreading to cover all but narrow lateral margins ; lateral 



margins of hemelytra frequently red 7 



Male without tubercle near base of left genital clasper; pronotal 

 disk black, or frequently with red but in that case the red color 

 developing along median line, thus leaving a black ray each side 

 or even reduced to form spot near basal margin ; lateral margins 

 of hemelytra sometimes red but in that case the median line of 

 pronotum also red 8 



