203 



ing short of apices of mid pair. Two thorns on each side of third 

 segment in Hne with apices of tarsi ; 6 thorns on other segments, the 

 lateral one of each series weakest; apical segment as in Figure i8, 

 Plate XXXII. 



This is the species described by C. A. Hart as Species (e) m the 

 paper previously referred to. It occurs in humid earth and especially 

 under logs or leaves. In addition to Hart's material I have before me 

 two specimens from St. Clair Co., 111. (Nov. 26, 1886). 



TiPULA ELUTA Loew 



Tiptila eluta Loew, Bull. Ent. Zeitschr., 1863, p. 290. 



The external characters of this species have been very fully de- 

 scribed by C. A. Hart in his paper on the "Entomology of the Illinois 

 River and Adjacent Waters"*. The details given here are merely 

 supplementary. 



Larva (PI. XXIX, Fig. i). — Antennae about 4 times as long as 

 basal width, slightly tapering apically ; maxillary palpi longer than 

 broad ; labial plate with a large rounded central tooth, and 2 much 

 smaller lateral teeth and 2 poorly developed protuberances on each 

 side; hypopharynx similar to that of Species 4 (PI. XXXI, Fig. 15). 

 Lateral abdominal bristles as shown in Figure i, Plate XXVIII. 



Pupa (PI. XXIX, Fig. 2). — Thorax with the postspiracular, 

 medio-dorsal, and postero-dorsal protuberances small but distinct. 

 Legs in female extending to apex of first abdominal segment beyond 

 apices of wings, in male to middle of the next segment. Armature 

 of ventral abdominal segments similar to that of Species i except that 

 the second visible segment has the widely separated anterior pair of 

 thorns reduced to mere hairs, and the other segments have these same 

 thorns simple, with a small hair at base instead of 2 thorns as in that 

 species; apical segment of sexes as in Figures 11, and 13, Plate 

 XXVIII. 



These descriptions and the figures are made from specimens 

 used by Mr. Hart as a basis for his descriptions of cluta in the paper 

 above referred to. The specimens were obtained from the Illinois 

 River at and near Havana, 111. The larva is usually found burrow- 

 ing in the sand on the shore, but occasionally is found in the water. 

 I have taken the larvae from wet mud and sand along the margin of 

 a small stream at Muncie, 111., and very probably the species occurs 

 in similar situations throue^hout the state. 



*Bull. 111. state Lab. Nat. Hist., Vol. 4, Art VI, pp. 212-214. (1895) 



