Mr. R. Shelford’s Studies of the Blattide. 501 
wings and tegmina and the truncate or shortly produced 
posterior margin of the pronotum; they are smooth shin- 
ing insects somewhat ovate in form. 
Sub-fam. BLATTIN A. 
47, Methana oculata, W\k. 
Periplaneta oculata, Walker, |. c. p. 152 (1869). 
?. AUSTRALIA. 
Synonymous with Methana soror, Sss. 
48. Pelmatosilpha aterrima, Wk. 
Periplaneta aterrima, Walker, |. c. p. 151 (1869). 
Pelmatosilpha prestans, Dohrn. Stett. Ent. Zeit. xlviii, 
p. 411 (1887). 
g. PERU. 
Kirby regards P. aterrima, Wlk., as synonymic with 
Nyctibora tenebrosa, Wik. (Syn. Cat. Orth. I, p. 108, 1904); 
this is certainly erroneous, as tenebrosa is a true Nyctibora. 
49, Thyrsocera speciosa, W1k. 
Ellipsidiwm speciosum, Walker, |. c. p. 214 (1868). 
Thyrsocera speciosa, Shelford. Trans, Ent. Soc., 1906, 
p. 249; Pl. xiv, fig. 5. 
9. “ EASTERN ARCHIPELAGO” (Wallace). 
Sub-fam. PANCHLORIN AL. 
50. Leucophexa conferta, W1k. 
Ischnoptera conferta, Walker, |. c. p. 148 (1869). 
¢. CHAN-TI-BON, Stam (Mowhot). 
Testaceous. Head with large castaneous marking on the front, 
extending to base of clypeus. Pronotum punctate, disc with a large 
castaneous lyrate mark, margins hyaline. Tegmina serio-punctate 
at base, testaceo-hyaline, veins castaneous ; both tegmina and wings 
extend considerably beyond apex of abdomen. Sub-genital lamina 
shortly transverse, an asymmetrical projecting lobe on the right side, 
Legs testaceous, femora marked with castaneous towards apex. 
