1312 



FAMILY LX1. — MORDELLID.E. 



d. Deep black, finely pubescent; base of thorax broadly rounded at 



middle. 0(f>0 



W. Dull black, pubescence brownish; base of thorax much less 

 rounded. , , 



, -424. SCUTELLARIS. 



Elytra Wlth distinct yellow or ash-gray spots or markings. 



e. Elytra each with four spots of yellowish pubescence, the one at 



base broadly curved. 2425 . ctofdkctata 



ee. Elytra with stripes or with more than four spots. 



/. Antennae and front legs black ; thorax marked with ash-gray 

 pubescence and large black spots. 

 g. Elytra with small silver gray spots, usually more or less 

 confluent. Aoa 



2426. MARGIXATA. 



ffff. Elytra with a narrow sutural line and an oblique stripe from 

 humerus toward the middle, ash-gray. 2427. lunulas 

 ft Antenna? and front legs dull yellow; thorax and elytra speckled 

 with small, unequal yellowish spots; elytra with an inter- 

 rupted band behind middle and the tips also yellowish pubes- 



-j- , '. . Cent 2428. serval. 



00. Last joint of maxillary palpi either broadly hatchet-shaped or with 

 the sides equal. 

 h. Head and thorax black. 



i. Thorax sparsely clothed with yellowish pubescence, more densely 

 at base ; elytra with a broad basal band, enclosing on each a 

 round black spot, and an interrupted band behind the middle 

 yellowish or ash-gray. 2429- 0CULATA> 



«. Thorax marked with ash-gray pubescence and large black spots. 

 ./. Elytra with a broad basal band, including on each side two 

 spots, and two oblique undulated bands of yellowish or ash- 

 gray pubescence. 2430 TRILOBA. 

 ././. Elytra with a broad basal band, including each side a very 

 large black spot, a band just behind middle and the tips ash- 

 gray. 



' L NDULATA. 



Mi. Head and thorax partly yellow: elytra with crossbands of black 

 and yellow. | 01 



2431. DISCOIDEA. 



M. borealis Lee., length 3-4 mm., is said to occur in the " North- 

 ern States." and has been recorded from Cincinnati.. 



2423 (7779). Mobdella mkl/ena Germ.. Insect Sp. 

 Nov.. 1824, 169. 

 Deep velvety black : pubescence at base of ely- 

 tra and on sides of under surface often more or 

 less iridescent; base of pygidium usually silvery 

 pubescent. Length 5-7 mm. (Fig. 574.) 



Throughout the State; frequent. June 9- 



» Fig. 574. (After MiL 1 0CClirS eS P eciall y °U blossoms of 



wild rose. 



