FALSE WIRE WORMS OF PACIFIC NORTHWEST. 



79 



of short hairs on caudal segment. Head subquadrate, very convex, distance from 

 base to labrum equal to one-half width 

 of head, sides converging anteriorly, 

 posterior angles rounded ; two stout hairs 

 on lateral dorsal surface; two oblong 

 black eye-spots on lateral anterior part, 

 a large one at base of antennae, and a 

 smaller one posterior and dorsad of this. 

 Suture arising at base of each mandible 

 flexed laterally and converging posteri- 

 orly to unite with the median suture at a 

 distance from base of head equal to one- 

 fourth distance from base to labrum; 

 mouthparts usually directed ventrally. 

 Labrum large, basal joint trapeziform, 

 terminal joint rounded, bearing several 

 hairs on margin, both joints margined 

 anteriorly. Mandibles large, visible from 

 above . Labium not covering mandib les , 

 ligula broader than palp if er; labial palpi 

 cylindrical, two-jointed, second joint 

 papilliform ; men turn larger than palpifer, 

 submentum larger than mentum, all 

 quadrangular and narrower at base than 

 at anterior margin. Maxillae larger than 

 labium, stipes directed laterally, palpifer 

 elongate and directed antero-medially; 

 maxillary palpi at about middle of 

 palpifer, three-jointed, first and second 

 joints about equal in length, first stouter, 

 third papilliform. Thoracic legs stout; 

 first pair longer than width of thorax, 

 second and third pairs one- third shorter; 

 first pair very heavy, terminal hook as 

 long as fourth joint, second joint bearing 



Fig. 24. —False wireworm, Eleodcs letchcri vandykei. 

 a, Larva, dorsal aspect; b, head, dorsal aspect; 

 c, head, ventral aspect; d, caudal s?gment, dorsal 

 aspect, a, Much enlarged; b, c, d, more enlarged. 

 (Original.) 



2 stout short spines on inner distal margin, third joint bearing 3 marginal spines 



and fourth joint bearing 4 such spines. 

 The pupa (fig. 25). — Length 11 mm., 

 width 5.3 mm., arcuate dorsally, flat- 

 tened to slightly concave ventrally. 

 Entirely white when first pupated but 

 eyes soon become black followed by 

 tips of mandibles; just prior to emerging 

 the elytra and dorsum of thorax become 

 black. Head pressed to the prosternum. 

 Pronotum very broad and protruding- 

 anterior to the head, making the latter 

 invisible from above. Mesonotum very 

 narrow and scutelliform, with indistinct 

 transverse sulcus slightly anterior to mid- 

 & fo die. Metanotum sagittiform, about as 



Fig. 25.— False wireworm, Eleodcs letcheri vandyln.- broad at anterior margin as mesonotum. 

 a, Pupa, ventral aspect; b, same, dorsal aspect. At the base of each elytron and of each 

 Much enlarged. (Original.) secondary wing pad is a rounded swell- 



ing. Seven abdominal plates visible dorsally. Between dorsal and pleural abdominal 



