SUBFAMILY I. PSEUDOMOPIX.E. 73 



V. BLATTELLA Caudell, 19()3b, 234. (L., "small" + Blatta.) 



Rather small, narrow species having the head long, almost hid- 

 den by the small, suborbicular pronotmn; eyes well separated, 

 interocnlar area not flattened, ocellar spots distinct; tegmina 

 delicate, narrow, not abbreviated; wings hyaline; snbgenital plate 

 of male asymmetrical, of female large, convex, truncate; lower 

 front margin of fore femora armed beneath as described in "aa" 

 of generic key, and with three longer, unequal spines near apex; 

 tarsal joints elongate, arolia very small. 



17. BLATTELLA GEKMANICA (Linnaeus), 1767, 668. German Cockroach. 



Dull brownish-yellow, the females often darker; all the limbs much 

 paler than the body; disc of pronotum with two dark brown, longitudi- 

 nal stripes separated by a yellowish one; antenna? dark brown, exceeding 

 slightly the tips of the closed tegmina. Tegmina and wings of male ex- 

 tending to end of abdomen, those of female slightly longer. Body of male 

 longer and narrower than that of female; middle of sixth abdominal seg- 

 ment with two deep, rounded fossae separated by a narrow ridge on basal 

 portion and deeply concave behind; styles very minute, the left one the 

 larger, small, rounded, decurved. Length of body, $ , 10.5 11.4, 9 11 

 12.8; of pronotum, $, 2.42.8, 9, 33.3; of tegrnina, $, 9.710.2, 9, 

 10.811.9 mm. Width of pronotum, $, 3.13.7, 9, 3.84.2 mm. (Fig. 35.) 



Abundant throughout Indiana, especially, in the cities and 

 towns; Moore Haven and Sarasota, Fla., Jan. 25 Feb. 21 (W. 8. 

 B.}. Recorded also from Gainesville, Miami, Big Pine Key and 

 Key West, Fla., at the latter place swarming in a hotel cupboard 

 (Hebard. 1917a, 59). Ranges throughout the United States and 

 the greater part of Canada, being most abundant in the Central 

 States. In addition to the two common names already given it is 

 known as the "Water Bug," and Burr (1897, 24) states that in 

 Russia it is called the "Preussenschabe" or Prussian Roach, while 

 in Germany it is known as the "Russen" or Russian Roach. Piers 

 (1918, 247) says that the local name in Nova Scotia is the "Yan- 

 kee settler." 



In Indiana and the Eastern United States it is best known as 

 the "Croton bug," so called because it made its appearance in New 

 York City in numbers about the time the Croton Aqueduct was 

 completed. It is a native of Central Europe, but like the Oriental 

 roach, has become cosmopolitan. In Europe it is found in woods 

 as well as in houses. In America it seldom, if ever, occurs in 

 numbers in the country, but is one of the worst insect pests with 

 which the inhabitants of the larger cities of the United States 



