350 ENTOMOLOGICAIv NEWS [Oct., '15 



(6) The Plecoptera (certain immature forms) and Palaeop- 

 tera (Blattidae) are strikingly similar to the Lepismatidae, 

 and the ancestors of all three must have been very closely re- 

 lated. 



Explanation of Plate XIIT. 

 Fig. I. Terga of pro-, meso- and metathorax and first abdominal seg- 

 ment, seen from above. 

 Fig. 2. Lateral view of anterior portion of the insect. Only the basal 

 portion of the abdomen is shown (as dotted lines). The 

 position of the episternum and epimeron (of meso- and 

 metathorax) indicated by dotted lines, to indicate that 

 they lie below the overlapping terga. 

 Fig. 3. Ventral view, showing sternal plates and one side of the body. 

 All are represented as though stretched out in one plane. 

 All figures are of Grylloblatta campodeiformis E. M. Walker. The 

 figures are somewhat diagrammatic. 



Abbreviations. 

 \-a — First abdominal tergite. mes — Mesonotum. 



bp — ^Basal pleural sclerite. met — Metanotum. 



bs — Basisternite (largest sternite). Pr — Pronotum. 

 ex — Coxa. pt — Pretergite. 



em — Epimeron. s — Spiracle. 



es — Episternum. ss — Spinasternite. 



fe — Femur. ta — Tarsus. 



fs — Furcasternite (in two parts ti — Tibia. 



in prothorax). tn — Trochantin. 



Ic — Lateral cervical sclerites. tr — Trochanter. 



Is — Laterosternite. 



The subscripts i, 2 and 3 indicate that the structure in question be- 

 longs to the pro-, meso- or metathorax. 



Two New Names in the Ascalaphidae (Neur.) 



The genus Ptynx Lefev. was proposed with costatus Burm. as only 

 species ; this species was already the type of Haploglenius, so that 

 Ptynx Lefev. is a synonym of Haploglenius. Neuroptynx McClend. 

 was proposed to replace Ptynx (preoc), and so also falls as synonym 

 of Haploglenius. Therefore, I propose Ascaloptynx n. n. with the 

 generic characters assigned by Weele for Neuroptynx, with Ascalaphus 

 appendiculatus Latr. as its type. 



The genus Orphne Lefev. (Agassiz gives Orphnus also preoc.) was 

 proposed for Ascalaphus appendiculatus, but is preoccupied by Hiibner. 

 Orphne as used by MacLachlan and Van der Weele is thus without 

 a name, and MacLachlan was aware that he was using the name in a 

 wrong sense. Therefore, I propose Ascalorphne n. n. with the generic 

 characters usually assigned to Orphne, and with Ascalaphus macrocercus 

 Burm. as its type. — Nathan Banks, East Falls Church, Virginia. 



