298 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 45. 



small, approximate, hind coxae transverse, femora moderately stout 

 subclavate, tibiae simple, straight, the anterior shortest, middle a 

 little longer, posterior still longer, spurs entirely wanting, hind tarsi 

 more slender than the others. First abdominal segment longest, 

 the three following subequal among themselves, fifth short, sutures 

 nearly straight. Under side of head granulate, more densely toward 

 the sides, under surface of pro- and mesothorax similarly but more 

 strongly and less densely sculptured, metasternum and abdomen 

 still less granulate. Elytra only showing for a short distance along 

 one edge and not displaying any markings. Length, from front of 

 labrum to abdommal apex, 7.60 mm. Widtjh, at point half way 

 between the middle and hind coxae, 2.40 mm. 



Type.— Cat. No. 59663, U.S.N.M. 



Kjiown from a well-preserved specimen in reverse, showing the 

 under side only, the granules, therefore, represent punctures. In 

 this punctuation the insect bears a rather close resemblance to 

 Stenosis Irentoides Rossi (angustata Herbst), of southern Europe, a 

 Corsican specimen having served as the basis of comparison. It 

 seems that Miostenosis must be an intermediate or ancestral type, 

 with affinities toward the Stenosi;jii on one hand and the Daco- 

 derini on the other. It has the eleven jointed antennae of the 

 Stenosiini, with a coxal structure somewhat approaching Dacoderus 

 as far as the front and middle members are concerned, but differs 

 from both in the hind pair. It is evidently heteromerous, though 

 the claws do not show on any of the tarsi. The eyes are distorted 

 and give no good clue to the affinities. The Stenosiini proper are 

 not represented by recent North American species though they are 

 abundant in Europe, Asia, and the Mediterranean region of Africa, 

 with a few generic types occurring in Madagascar, South America, 

 and Australia. The genus ArseoscJiizus , fairly well represented to-day 

 in our Southwestern States, has been separated from this group by 

 Colonel Casey, to form a distmct tribe, the ArseoscJiizinse. I think 

 that Miostenosis is not as closely related to Arseoschizus as to Stenosis. 

 It differs from my examples of both genera in the short terminal 

 segment of the abdomen and in the relatively long penultimate 

 segment. 



This very interesting insect is dedicated to the great French 

 master, Lacordaire. 



Genus BLAPSTINUS Latreille. 



BLAPSTINUS LINELLII, new species. 

 Plate 26, figs. 6-9. 



Represented by a specimen in dorsal aspect. Form rather elon- 

 gate for tliis genus, subparallel. Head somewhat distorted in shape, 

 the labrum bent up so as to be freely exposed, this part broader than 



