THE CANADIAN ENTOMOLOGIST 183 



4. Mordella obliqua Lee. 



The writer is of the opinion that this species, being valid, was wrongly 

 placed by Smith^ in the synonymy of M. limulata. Three specimens agreeing 

 closely with the original description^ have been examined; two of these are 

 topotypes, collected by Mr. H. Dietrich at Odenton, Maryland, on June 16; 

 the third was collected by Mr. T. H. Hubbell at Sawyer Dunes, Berrien County, 

 Michigan, on July 9. These three differ from specimens typical of Helmuth's 

 lunulata,'' in the form of the body, and of the anal style; in the relative lengths 

 of the antennal segments; in the character of the pubescence, and in the marking 

 of the elytra. As originally stated, M. ohliqua bears considerable resemblance 

 to M. marginata. 



Mordella obliqua may be redescribed, on the basis of the material at hand, as 

 follows: 



Body short, elongate-oval in form. Color as originally described, except 

 that the pubescence of the under surfaces is cinereous, and that the pubescence 

 at the sides of the abdominal segments and of the pygidium is silvery; antennae 

 and palpi, dark brown, palpi the lighter of the two. Antennae with third joint 

 very little shorter than the fourth, and less dilated at apex; fifth joint one-third 

 longer than the fourth and twice as broad at apex ; sixth to tenth joints each 

 about one-fourth shorter than the fifth, all moderately serrate. Last joint of 

 maxillary palpi with the inner and outer sides nearly equal in length, the basal 

 side one-half shorter. 



5. Mordellistena quadrinotata, sp. nov. 



Hind tibia with two oblique parallel ridges, the anterior one extending en- 

 tirely across the outer face of the tibia; first joint of hind tarsus with three, second 

 with two ridges ; all ridges strongly marked. 



Form nearly linear. Head testaceous, sparsely covered with cinereous pu- 

 bescence; antennae testaceous, becoming a little fuscous on the four terminal 

 joints ; palpi a little darker than the head ; eyes black ; prothorax black with long 

 flavo-testaceous pubescence, and a small ferruginous spot at the apical angle on 

 each side; elytra black, with an oblique, oblong oval testaceous spot, extending 

 from the humeral angle one-third of the distance to tip of elytra, but not reaching 

 the suture, and one small pale spot, located in the middle of each elytron, one- 

 third of the distance from its apex to base ; surface of elytra covered with long 

 stiff flavo-testaceous pubescence ; under surfaces black, except on the two last 

 segments of the abdomen (which are testaceous), with pubescence like that of 

 the elytra; anterior legs testaceous, femora and tibia of posterior legs black, the 

 tarsi fuscous ; anal style testaceous. Head a little narrower than the prothorax, 

 finely punctured Antennae filiform; covered with bristle-like hairs; the first 

 p.nd second joints equal in length, rather robust; the third and fourth joints 

 each one-third shorter and a little narrower than the second; the fifth to tenth 

 joints about eq^al in length, each one-third longer and wider than the fourth ; 

 eleventh joint oval, longer than the tenth. Palpi with the last joint nearly oval. 

 Prothorax finely and sparsely punctured ; about as long as wide, widest a little in 

 advance of the base, which is truncate in front of scutellum; its sides slightly 



2 Trans. Am Ent. Soc. X. 1882, pp. 81, 83. 

 ;jProc. Amer. Philos. iSoc. XVII.. 1878. p. 428. 



•4 Specimens examined from Iowa, Illinois, Ohio, Maryland, New Jersey, New 

 York and Massachusetts. 



