NO. 1432. 



NEW SPECIES OF EARWIGS— REHN. 



505 



very .slightly projecting; antenna with fourteen joints present, proxi- 

 mal one large, constricted proximad, second joint small and subspheri- 

 cal, third joint cylindrical, not quite half the length of the proximal, 

 fourth and fifth joints slightly smaller than the third, from this point 

 the segments gradually increase in length toward the apex. Prono- 

 tum slightly transverse, the margins all very slightly arcuate, the 

 caudal angles more rounded than the cephalic, the latter each supplied 

 with several long, stiti' bristles; lateral depressions not deep, a trans- 

 verse depression caudad of the middle is faint and incomplete mesad; 

 median longitudinal sulcus very faint but precurrent. Tegmina 

 slightly more than twice the length of the pronotum; "shoulder" 

 angles rounded, a distinct lateral carina present; caudal margins sub- 

 truncate; the tegmina when in nor- 

 mal position narrower caudad than 

 cephalad. Exposed portion of the 

 wings less than a third the length 

 of the tegmina, rounded with the 

 tips abruptly truncate. Abdomen 

 narrow cephalad, increasing in 

 Ijreadth caudad, the margins of the 

 segments supplied more or less reg- 

 ularly with long, stiff bristles; anal 

 segment subquadrate, the caudal 

 margin truncate, a distinct but shal- 

 low longitudinal median depression 

 present; subgenital plate trigonal, 

 a moderately elevated medio-longi- 

 tudinal area subglabrous, flanked 

 by subovate areas of linear irreg- 

 ular rugosities; pygidium with the 

 proximal portion subtrigonal, the 

 distal portion longitudinal, sub- 

 equal, the apical section expanded 

 into a narrow lamellate structure. 



Fig. 3. — Labidurodes magnificus. x 2. 



Forceps almost eciual to the teg- 

 mina in length, somewhat depressed, gently curved except in the 

 distal fourth of the right arm, which is strongly hooked, and the distal 

 half of the left arm which is regularh^ but not strongly curved; inter- 

 nal margins with several crenulations on the proximal third, otherwise 

 unarmed. Limbs with the femora distinctly inflated; tarsi of the 

 cephalic pair with the distal joint distinctly longer than the proximal, 

 of the median pair slightly longer, of the caudal pair distinctly shorter, 

 second joint depressed, cordiform; arolia present, minute. 



General color l)lackish bay, brighter cephalad; exposed portions of 

 the wings ocher yellow with the lateral margins dark; feet paler, 

 inclined toward yellowish, with the hairs golden brown. 



