SUBFAMILY I. — PENTATOMIN^E. 115 



country only from Florida, Texas and Arizona. Barber records 

 it from Key Largo, Fla., and states: "I believe that this species 

 is confined to the extreme southernmost part of Florida, al- 

 though I have seen records from other parts of the State." The 

 Arizona specimens at hand do not have the spiracles black or 

 the edge of the abdomen with conspicuous black points as men- 

 tioned by Van Duzee (1904, 53). In the Florida ones the 

 points are present and there is a black dot behind each spiracle. 

 Stal (1872, 34) records perditor from Mexico, Texas, Columbia 

 and the East India Islands. It has been recorded by Uhler and 

 others as far north as Savannah, Ga., and even North Dakota, 

 but both Barber (1911, 109) and Van Duzee (1917, 52) state 

 that these northern records probably refer to varieties of cus- 

 tator. 



72 (158). Thyanta custator (Fabricius) , 1803, 164. 



Elong'ate-oval, subconvex. Color exceedingly variable, olive-brown, 

 pale green or greenish-yellow; antenna? with joints 1 — 3 pale green, 

 often tinged with reddish, 4 and 5 usually more or less fuscous; pronotum 

 with or without a reddish-purple band between the humeri, its front 

 side margins, basal half of elytral costal border and tip of scutellum, 

 pale green, yellowish or purplish red; membrane surpassing the abdo- 

 men, pale hyaline, rarely with a few fuscous dots near base; connexivum 

 narrowly or not at all exposed, pale green or yellow, rarely alternated; 

 under surface with sides green, the middle of abdomen and coxa? usually 

 dull yellow; legs dull green, the tarsi and apex of tibia? often fuscous; a 

 black dot behind the spiracles and a black point on incisures of ends of 

 ventrals often present. Head flat, about as wide across the eyes as long ; 

 tylus feebly convex, usually slightly longer than cheeks ; antenna? slen- 

 der, pubescent, joints 2, 4 and 5 subequal, each nearly one-third longer 

 than 3. Pronotum with front half strongly declivent, side margins 

 straight or very slightly concave, their edges a little roughened; humeral 

 angles usually obtuse; disk uniformly densely confluently punctate. Scu- 

 tellum as in key, its punctures arranged somewhat in a transverse row 

 with very fine ruga? between them. Thoracic pleura coarsely irregularly 

 punctate. Genital plate of male broadly emarginate, its lateral lobes 

 somewhat flattened and divergent, their tips rounded, the small median 

 lobe nearly straight-edged. Length, 10 — 12 mm.; width, 5 — 6.5 mm. 



Frequent throughout Indiana, Jan. 16 — Oct. 18. In spring 

 and summer occurs on clover, grasses and other low herbs 

 along the borders of meadows and cultivated fields, in autumn 

 on the flowers of goldenrod and other Compositse, especially 

 those growing in moist grounds. In Vigo Co., on three oc- 

 casions, it was taken in January from beneath the root leaves 



