160 Psyche [October 



darker than rest of body. Seta absent. Dorsal view: Head and anterior margin 

 of prothorax hidden. Knees of first pair of legs visible at sides of prothorax, near 

 posterior margin. Knees of third pair of legs project at sides of second abdominal 

 segment. Prothorax rounded triangular, joined to mesothorax by a straight line. 

 Mesothorax convex, suture separating it from elytra not definable. Anterior margin 

 straight, posterior margin with a median protrusion extending one-third into the 

 metathorax. Metathorax slightly convex, same width as mesothorax, anterior 

 margin following line of joint with mesothorax, posterior margin straight. Formula 

 expressing ratio of lengths of thoracic segments: 37 18 23. Abdomen: First 

 segment slightly longer and wider than metathorax, second segment but half the 

 length of first and of equal width. Segments increase in width to the fifth from 

 whence they taper to the end. Stigmata near the lateral margins. Cerci incon- 

 spicuous. Ventral view: Head semicircular in front surrounded in anterior outline 

 by prothorax and, from vertex to tip of mandibles, slightly more than one-third 

 total length of pupa. Eyes not conspicuous until coloration previous to emergence 

 sets in, when they are seen to be just above base of mandibles. Tip of antenna 

 reaches slightly beyond eye. Mandibles slightly more than one-fourth of length 

 of head, closed but do not overlap. Labrum extends down as far as tip and covers 

 interior halves of mandibles. Labrum notched at tip. Maxillary palps extend 

 slightly below mandibles, the part in view roughly triangular. Labial palps hidden. 

 Legs: First pair. Femora hidden beneath head with exception of tips, which are 

 visible at the sides of the head where the antennae are inserted. Tibise directed 

 posteriorly from this point and reach to the eyes. Tarsi are nearly parallel and 

 reach posteriorly nearly to the tips of the mandibles. Second pair. Femora of 

 second pair of legs completely hidden by head. Tibiae partially hidden by tarsi of 

 first pair, but do appear outside first legs near the eyes. Tarsi parallel and extend 

 below the mandibles a distance equal to that across the tips of the maxillary palps. 

 Third pair. Femora are visible and extend in nearly a straight line at right angles 

 to the body. Tibiae extend inward and posteriorly and end at the posterior margin 

 of the third abdominal segment. Tarsi are parallel and extend almost to the middle 

 of the fifth segment. 



Osborn Zoological Laboratory, 

 Sheffield Scientific School, 



New Haven, Connecticut. 



REFERENCES IN TEXT. 



Janet, C. Etudes sur les Fourmis. 2""'' note. Appareil pour I'Elevage et TObser- 

 vation des Fourmis et d'autres petits Animaux qui Vivent Caches et ont 

 Besoin d'une Atmosphere Humide. Ann. Soc. Ent. France, 1893, vol. 62, 

 p. 467-482, il. 



Dimmock, George and F. Knab. Early Stages of Carabidae. Bull. Springfield 

 Mus. Nat. Hist., 1, 1904, p. 4. 



Hamilton, John. Notes on Coleoptera. No. 7. Canadian Ent., 1891, vol. 23, 

 p. 60-65. 



