MORGAN HEBARD 159 



Of the thirty-one species recorded, other than those carried 

 by commerce, eleven are at present known only from this region, 

 while three or more are known elsewhere only from extreme 

 southern Baja California and southern Sonora. 



The material here recorded, unless otherwise stated, is in the 

 author's collection. 



DERMAPTERA 

 Labiduridae 

 Euborellia annulipes (Lucas) 



1847. Furjicdisa annulipes Lucas, Bull. Soc. Ent. France, (2), v, p. l.xxxiv. 

 [Jardin des Plantes, Paris, (probably introduced from North America).] 



Las Mochis, II, 2, 1918, 1 cT, 2 9. Mazatlan, XII, 16 to 

 31, 1916, 9 (^, 10 9,8 juv. 



Labiidae 



Vostox brunneipennis (Serville) 



1839. Psalidophora brunneipennis Serville, Hist. Nat. Ins., Orth., p. 30. 

 [Philadelphia, Pa.] 



Venvidio, VI, 30 to VIII, 3, 1918, 1 9 } 



This specimen differs from the series before us, from the 

 United States, in having the tegminal shoulders very slightly 

 and inconspicuously paler than the other portions-, and the 

 internal faces of the forceps strongly hirsute. 



Prosparatta sinaloae new .species (Plate VI, figures 1, 2 and 3.) 



This insect represents a simplified type, showing least special- 

 ization of the species of the genus. In its slender form it agrees 

 with the genotype, P. iricerta (Borelh), the other species P. 

 humilis Hol^ard and P. flavipennula (Rehn) being distinctly 

 more robust. 



'In addition we have examined the following material: 

 Cordoba, Vera Cruz, II, 24, 1908, (F. Knab), 2 d", [U. S. N. M.]. These 

 specimens differ, from the other material at hand, in having the forceps with 

 the usual median tooth situated at end of proximal third of the internal 

 margin heavier, and in being furnished with a much smaller but distinct 

 dorsal tooth at base of distal third. The specimens are richly color(>d. 



2 See discussion of this feature for the species. Trans. An.er. Fint. Soc, 

 xun, p. 307, (1917). 



TR-\NS. AM. ENT. SOC, XLVHI. 



