64 ENTOMOLOGICAL NEWS [Feb., 'll 



mg, Metathoracic (+ first abdominal?) ganglion. 



msp, Metathoracic spiracle. 



wit, Malpighian tubes. 



oc, Oesophagus. 



Ri, First branch of radius vein (= median vein of de Selys). 



1-4, Fourth lateral branch of right anterior gastric trachea. 



rcg, Point of attachment of right caudal gill. 



rcgt, Right caudal gill trachea. 



rdrt, Right dorsal rectal trachea. 



rdt, Right dorsal trachea. 



rlrt. Right lateral rectal trachea. 



rlt, Right lateral trachea. 



Ks, Radial sector (= sub-nodal sector of de Selys). 



so, Superior appendages of imago ('Cercoids'). 



Sc, Subcosta vein. 



sbl, Sub-anal lamina. 



sp, Site of future spiracle. 



spl, Supra-anal lamina. 



tab. Tendon of abductor mandibulae. 



tad, Tendon of adductor mandibulae. 



ts, Testes. 



t*, Tooth on median labial lobe. 



u, Undetermined tube. 



rd, Vas deferens (beginning of). 



wm, Wing muscle. 



wp, Outline of wing-pad. 



X, Tenth abdominal segment. 



The Tenth Pleocoma (Col.). 



BY H. F. FALL. 



On the 1 2th of last October, Mr. Chas. Camp, a student in 

 the Pasadena High School, while repairing a trail in a small 

 canon in the mountains near Sierra Madre, cut into a large 

 beetle a few inches below the surface, the remains of which 

 he brought to me for identification. 



The specimen proved to be a female Pleocoma; a most in- 

 teresting discovery, inasmuch as no representative of the 

 genus had ever been found in this vicinity. One hundred and 

 fifty miles north, along the South Fork of the Kaweah River 



