160 bulletin: museum of comparative zoology. 



MiMOPS Kraepelin. 



Revis. Scolop., 1903, p. 62. 



This genus has heretofore been known from one species (M. orientalis 

 Kraepelin) based upon a single specimen from China (Province 

 Shensi) . It was a matter of much surprise and interest, therefore, to 

 find in the collection of the M. C. Z. two specimens of a distinct species 

 but fully conforming to this genus in a vial with specimens of Orph- 

 naeus brevilabiatus (Newport) from Rio de Janeiro. The specimens of 

 Orphnaeus had been labeled 0. brasiliensis by Meinert, who seems to 

 have overlooked or to have failed to examine critically the smaller 

 specimens of Mimops. It is, of course, quite possible that the speci- 

 mens were introduced to Rio de Janeiro on ships from the East; but 

 this must remain for the present uncertain. 



MiMOPS OCCIDENTALIS, Sp. UOV. 



The color of the types appears to have been yellowish ; but because 

 of long preservation the original color of the specimens cannot be 

 satisfactorily ascertained. 



Cephalic plate wider than long, nearly in ratio 12: 11. A little 

 overlapping the first dorsal plate. Widest anteriorly, with sides 

 converging caudad; caudal margin mesally a little incurved; the 

 anterior margin incised between bases of antennae. Longitudinally 

 depressed in caudal region each side of middle. (Plate 1, fig. 4). 



Antennae composed of seventeen or eighteen articles, which in the 

 proximal half are as wide as or wider than long, but distad become 

 longer than wide. 



Anterior margin of prosternum nearl}^ straight being but very 

 weakly widely convex ; bearing two moderately high, distally rounded, 

 dental plates separated bj' a median spaces or incision which is rounded 

 at bottom and is deeper than in orientalis Kraepelin. All joints of 

 prehensorial feet unarmed. Claw short and stout and but little 

 curved. (Plate 1, fig. 5). 



First dorsal plate with a transverse sulcus a little caudad of margin 

 of head, this sulcus bending caudad at middle region. Also with a 

 longitudinal furrow each side of the middle extending cephalad from 

 the caudal margin and uniting at an angle w^ith its fellow near the mid- 

 dle of the plate, from where they continue as a single median furrow 

 to the transverse sulcus (Plate 1, fig. 4). Other dorsal plates bi- 



