CYDNIDAE OF THE WESTERN HEMISPHERE— FROESCHNER 591 



V, 0.61(0.60-0.63). Labial segments: I, 0.44(0.43-0.46); II, 0.87 

 (0.80-0.93); III, 0.55(0.53-0.60); IV, 0.43(0.40-0.46). 



Pronotum: Length-width ratio, 1.48(1.43-1.52) :2.90(2.84-3. 13). 



Scutellum: Length-width ratio, 2.39(2.21-2.60) : 1.85(1.74-2.02). 



Length of body: 5.88(5.55-6.30). 



Type data. — Holotype male and allotype female (both MCZ) 

 labeled "Constanza, Aug. '38, Dom. Rep., 3-4,000 ft., Darlington." 

 Paratypes, 5 males, 7 females, as follows: 



Dominican Republic: Constanza, same data as type, 1 male (RCF), 2 females 

 (RCF; MCZ). Vicinity of Valle Nuevo, cloud forest, 6,000 feet, August 1928, 

 Darlington, 2 males (USNM; MCZ), 2 females (USNM; MCZ). Foothills of 

 Cordillera Central, south of Santiago, June 1928, 1 male, 1 female (MCZ). 



Haiti: Mt. Basil, to 4,700 feet, Sept. 9, 1934, Darlington, 1 male, 2 females 

 (MCZ). 



Discussion. — The distribution of this form undoubtedly will be 

 found to be more widespread than is indicated by the data on the type 

 series. 



Dallasiellus (Ecarinoceps) longirostris, new species 



Plate figures 77, 267 



Diagnosis. — The very elongate labium of which the first segment 

 surpasses the bucculae by about one-third its own length sets this 

 species apart from all others in the genus. 



Description. — From a single male. Elongate, parallel-sided, mod- 

 erately convex above, more strongly so below. 



Head: Width one-fifth greater than length, 1.28:1.00; interocular 

 width, 0.86; anterior outline semicircular, eyes strongly projecting 

 (about two-thirds width); surface convex transversely and longi- 

 tudinally, with numerous punctures except on clypeus; ocelli posterior 

 to line connecting hind margins of eyes, separated from eye by more 

 than transverse ocellar diameter; juga with no submarginal setigerous 

 punctures except the one in front of the eye; clypeus very slightly 

 longer than juga, very slightly narrowed at apex; jugum ventrally 

 polished, impunctate; maxillary plate with several scattered, distinct 

 punctures. Antennal segments: I, 0.36; II, 0.43; III, 0.50; IV, 0.70; 

 V, 0.94. Bucculae about as high as labial II. Labial segments: 

 I, very long, 0.81, surpassing base of bucculae and reaching base of 

 prosternal carinae; II, 1.30; III, 1.00; IV, 1.10. 



Pronotum: Length slightly more than half width, 1.36:2.53; an- 

 terior margin very deeply concave; side margins subparallel on basal 

 two-thirds then more abruptly narrowed; side margin slightly sinuate 

 at ends of submedian transverse impression ; latter marked by irregular 

 wide band of large punctures; anterior lobe with wide band of close-set 

 punctures immediately behind anterior emargination, and a deep. 



