1348 



FAMILY LXIII. — PYROCHROIDJE 



2503 (7990). Ischalia costata Lee. New Sp. N. Am. CoL. I, 1806, 142. 



Oval, subdepressed. Dull brownish-yellow; head, abdomen and an- 

 tenna-, except the last two joints, brownish-fuscous ; elytra dusky with a 

 long stripe on side and tips pale. Thorax bell-shaped, without punctures 

 sides thickened and reflexed ; hind angles acute; disk with a strong median 

 carina ending in a point at the base. Elytra elongate-oval, very coarsely 

 punctured; each with a high ridge extending from humerus nearly to tips 

 and another, much feebler, very near the margin and reaching from near 

 the base to the tip. Length 4.5-5 mm. 



Marshall County; rare. May 3. One specimen from decaying 

 cottonwoocl. 



II. Pyrocpiroa Geoff. 1764. (Gr., ''fire + color.") 



Four species of large black and yellow forms belong here. Two 

 of the four occur in the State. 



2504 (7991). Pyeocheoa flabellata Fab., Ent. Syst Supp., 1798. II. 105. 

 Elongate, subdepressed. Reddish-yellow; antennae, except the two basal 



joints, piceous; elytra black, sparsely clothed with short, suberect pubes- 

 cence. Thorax twice as wide as long, distinctly wider than head; sides 

 and angles rounded, disk smooth, with a broad median impression at base. 

 Elytra distinctly wider behind the middle, finely and densely granulate- 

 punctate. Male with head broadly concave between the eyes and antenna? 

 with joints 5 to 10 more strongly pectinate than in female. Length 15- 

 17 mm. 



Throughout the State, frequent in the southern counties ; much 

 less so northward. June 2-July 7. Occurs on foliage, especially 

 that of ironwood, in open woodland ; also often beneath chips and 

 bark. A half dozen specimens were, on one occasion, found feeding 

 on a pungent, sourish sap which was exuding from a crevice in a 

 white oak stump. 



2505 (7992). Pyeocheoa femoealis Lee, Proc. Phil. Acad. Nat. Sci. YII 



1855, 274. 



Resembles the preceding in form and color except that the under sur- 

 face, palpi, all the tibiae and tarsi and part of middle and hind femora are 

 blackish. Thorax much narrower than in flabellata, scarcely wider than 

 head. Male with a very deep double fovea between the eyes and with the 

 branches of antenna 1 joints much longer and more slender. Females with 

 a broad, shallow excavation between the eyes and the antenna? about as in 

 the males of flabellata. Length 14-16.5 mm. 



Marion, Crawford and Perry counties ; scarce. May 14-June 5. 

 The elytra are much more shining and less rough than in flabellata. 



