MORGAN HEBARD 173 



Specimens Examined: 17; 6 males, 1 female, 10 immature individuals. 

 Rosario, Sinaloa, 3 juv. d^, 4 juv. 9- 



Venvidio, Sinaloa, VI, 28 to VII, 22, 191S, (J. A. Kusche), d", 1 9,t!jpe, 

 (lUutypc and paratypes, 1 large juv. cf , 2 large juv. 9 . 



BLATTINAE 



Neostylopyga rhombifolia (.Stoll) 



1813. [lUiillu] rhombifolia Stoll, Natuur. Afbeeld. Be.sehr. Spooken etc., 

 Kakkerhikken, p. 5, register p. 14, pi. Illd, fig. 13. [Apparently an im- 

 mature female, no locality given.] 



Rosario, 1 juv. cT. Mazatlan, XII, IG to 31, 191G, 2 juv. cf, 

 4 juv. 9 . Los Mochis, II, 2, 1918, 1 juv. 9 . 



We have previously recorded this species from Escuiiiapa, 

 Sinaloa. 



Periplaneta americana (Linnaeus) 



17.")8. [Hliitta] (imcrirana Linnaeus, Syst. Nat., Ed. X, p. 424. [America.] 

 Rosario, 1 9. Mazatlan, XII, IG to 31, 191G, 14 d', 4 9, 

 1 juv. 9 . Los Mochis, I, 1 to 2, 1918, 1 cf , 1 very small juv. 



Periplaneta australasiae (Fabricius) 



1775. [Bldtta] uudrahinidc Fabricius, Syst. Ent., p. 271. ["In nave e mare 

 Pacifico et regionibus incognitis revertente."] 



Mazatlan, XII, IG to 31, 191G, G cf , 1 9,1 juv. d". 



PANCHLORINAE 



Pycnoscelus surinamensis (Linnaeus) 



1767. [BUttta] surinamttifiis Linnaeus, Syst. Nat., Ed. XII, j). 687. [Suri- 

 nam.] 



Rosario, 1 9. Mazatlan, II, 21, 1918, 1 9 ; XII, IG lo 31, 

 191G, 81 9, 7 juv. 9. Venvidio, VI, 30 to VIII, 1918, 119, 

 Ijuv. 9. Los Mochis, II, 2, 1918, 2 9. 



In over a thousand American specimens we have examined, 

 no males have l)een found. Mr. Wm. T. Davis, however, has 

 secured a single male from the colony at the New York Zoological 

 Park. 



It would appear certain that the species is, in America, almost 

 always parthenogenetic. 



Panchlora cubensis (Saussure) 



1862. l'[anchlora\ cubensis Saussure, Rev. et Mag. de Zool., (2), xiv, p. 230. 

 [ 9 , Cuba.] 



Venvidio, VI, 31 to VIII, 10, 1918, 8 d^, 1 9. 



TRANS. AM. ENT. SOC, XLVIII. 



