The cockroaches of Balta Tepper from China, with the description of four new species (Blattodea, Ectobiidae, Pseudophyllodromiinae) Author Qiu, Zhi-Wei Author Che, Yan-Li Author Zheng, Yu-Hong Author Wang, Zong-Qing text ZooKeys 2017 714 13 32 http://dx.doi.org/10.3897/zookeys.714.14041 journal article http://dx.doi.org/10.3897/zookeys.714.14041 1313-2970-714-13 BD6F82D9CA6F46338BA8C132E5AE35BC BD6F82D9CA6F46338BA8C132E5AE35BC Balta crena sp. n. Figs 1, 2, 15-27 Type material. Holotype: China, Yunnan: male (IESWU), Xishuangbanna, Menglun Botanical Garden, Lvshilin, 640 m, 21°54.600′N , 101°17.084′E , 17 November 2009, coll. Guo Tang and Zhiyuan Yao. Paratypes: 1 male, same collection event as holotype; 10 males and 14 females, Xishuangbanna, Menglun, G213 (National road) secondary forest, 644 m, 21°54.439′N , 101°17.755′E , 20 November 2009, coll. Guo Tang and Zhiyuan Yao; 4 males and 1 female, Mengla County, Bubeng monsoon forest, 690 m, 21.61379°N , 101.58079°E , 10 August 2012, coll. Guo Zheng, Xue Li and Wenyue Zhu. Differential diagnosis. This species resembles Balta notulata ( Stal , 1860) in appearance, but can be distinguished from the latter by the following characters: 1) hind margin of subgenital plate concave and without produced medial lobe (Fig. 24) while that in B. notulata with produced medial lobes; 2) some fine spines present on either apex of lateral lobes of subgenital plate (Fig. 24), which are lacking in B. notulata . Description. Male. Body brownish yellow (Figs 1, 2). Third and fourth maxillary palpomeres almost the same length, both distinctly longer than the fifth (Fig. 16). Tegmen with M and CuA oblique (Fig. 18); hind wing with M simple; CuA with three or four complete branches and without incomplete ones (Fig. 19). Front femur type C2 (Fig. 20), tarsal claws strongly asymmetrical and unspecialized (Fig. 21). Abdominal tergites unspecialized. Figures 1-14. 1-2 Balta crena sp. n., male: holotype 1 dorsal view 2 ventral view 3-4 Balta maculata sp. n., male: holotype 3 dorsal view 4 ventral view 5-6 Balta tangi sp. n., male: holotype 5 dorsal view 6 ventral view 7-8 Balta yaoi sp. n., male: holotype 7 dorsal view 8 ventral view 9-10 Balta hwangorum Bey-Bienko, 1958, male 9 dorsal view 10 ventral view 11-12 Balta nodigera (Bey-Bienko, 1958) comb. n., male 11 dorsal view 12 ventral view 13-14 Balta valida (Bey-Bienko, 1958), comb. n., male 13 dorsal view 14 ventral view. Figures 15-27. Balta crena sp. n. 15 head 16 maxillary palps 17 pronotum 18 tegmen 19 hind wing 20 front femur 21 tarsal claws and arolium 22 supra-anal plate and paraprocts, ventral view 23 subgenital plate, ventral view 24 subgenital plate, dorsal view 25 right phallomere 26 median phallomere 27 left phallomere. Scale bars: 0.5 mm (15-17, 20-27), 2.0 mm (18, 19). Male genitalia. Supra-anal plate with posterior margin distinctly produced and concave in U-shape in the middle, right and left paraprocts simple (Fig. 22). Subgenital plate with hind margin strongly concave medially; two lateral lobes with styli on either apex direct dorsally and with fine spines (Figs 23, 24). Hook-like phallomere on right side and with preapical concavity (Fig. 27). Median phallomere with base acuminate, apex blunt with some long setae, median phallomere appendage with some fine spines (Fig. 26). Left phallomere complex, consisted of several irregular sclerites (Fig. 27). Female. Both tegmina and hind wings slightly beyond the end of abdomen. Subgenital plate with hind margin rounded. Measurements (mm). Overall length: male 13.5-14.0, female 9.5-10.0; tegmen length male 11.0-12.0, female 7.9-8.2; pronotum length x width male 2.5-2.7 x 3.5-3.8, female 2.5-2.7 x 3.4-3.7. Etymology. Latin word crena means "nick" , referring to subgenital plate with its hind margin strongly concave medially. Distribution. China (Yunnan).