FAMILY LXI. MORDELLID/E. 



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



middle. 2423. MEL.ENA. 



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

 rounded. 2424. SCUTELLARIS. 



t*;. Elytra with distinct yellow or ash-gray spots or markings. 



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



base broadly curved. 2425. OCTOPUNCTATA. 



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



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



pubescence and large black spots. 



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

 confluent. 2426. MAKGINATA. 



<></. Elytra with a narrow sutural line and an oblique stripe from 

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

 //. Antenna 3 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- 

 cent. 2428. SERVAL. 

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



the sides equal. 

 //. Head and thorax black. 



/. Thorax sparsely clothed with yellowish pubescence, more densely 

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

 round black spot, and an interrupted band behind the middle 

 yellowish or ash-gray. 2429. OCULATA. 



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

 j. 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. UNDULATA. 

 ////. Head and thorax partly yellow; elytra with crossbauds of black 

 and yellow. 2431. DISCOIDEA. 



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

 ern States, ' ' and has been recorded from Cincinnati, 



2423 (7779). MORDELLA HELENA Germ., Insect Sp. 

 Nov., 1S24, 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- 

 August 1. Occurs especially on blossoms of 



Fig-- 574. (After Smith.) -, , 



wild rose. 



