Jan., '07] ENTOMOLOGICAL NEWS. II 



the larval organs of Plusia in its last days and thus preparing 

 them to serve as nutriment for the sexual forms. If this be 

 true, we have in Litomastix a. larval dimorphism comparable 

 to the polymorphism of social insects. The parasitic life, the 

 factor which has acted to push back to the very egg stage the 

 multiplication of the species, has served to bring about the 

 precocious development of caste. 



A new species of the Orthopterous genus Daihinia. 



By A. N. Caudell, Washington, D. C. 



Daihinia phrixocnemoides n sp. 



Female. — Resembles very closely members of the genus Phrixocncmis. 

 but the three segmented first and third tarsi preclude its being placed 

 in that genus. 



Head moderately large and broad; occiput rounded, front broadly 

 convex ; eyes small, not prominent ; palpi with the terminal segment 

 about equal in length to the previous one and concave beneath on 

 the apical third and somewhat swollen. Pronotum rounded above, 

 about as long as broad; lateral lobes very broadly rounded below, 

 descending about the same distance as the descending lobes of the 

 meso- and metanotum. Abdomen rounded above ; ovipositor long 

 and moderately slender, three-fourths as long as the third femora 

 and curved gently upwards, the lower valves armed apically with five 

 large recurved teeth, four ventral and one terminal". Legs stout ; 

 first and intermediate femora armed below on the inner, or front, 

 margin with a small pregenicular spine; third femora unarmed, one- 

 third as broad as long, nearly straight below, above strongly arched, 

 only the apical sixth subparallel : first tibiae stout and apically 

 swollen, convex outwardly, concave inwardly, armed above with one 

 stout, blunt, down-curved calcarium, and below, on the outer side, armed 

 with four stout, blunt calcaria and on the inner side with four sharp 

 spines, the terminal one very long and with a minute spinule 

 just above it; middle tibiae not swollen, armed on the rounded 

 lower side with two rows of very fine spines, three spines 

 on each side; besides these spines there are two long terminal 

 spurs on each side, one above and one below; third tibiae 

 rounded below and sulcate above, considerably deeper and some 

 broader at the middle, below armed on the outer side a short 

 distance from the apex with a single very minute inconspicuous 

 spine and at the apex with a pair of short, stout, black-tipped calcaria ; 

 above armed on the outer margin on the basal two-thirds with a num- 



