64 M. A. Carrikcr 



any other, but is distinguished from that species by the larger 

 size, slenderer posterior femora and tibiae, and darker, narrower 

 lateral bands of abdomen. 



Menopon thoracicum Gieb., pi. VII, fig, 3 



Female. — Body, length 1.4 mm., width .54 mm.: pale ful- 

 vous, with narrow, dusky, occipital margin ; two 1)lackish ocular 

 flecks ; fuscus markings on head and thorax and dee]) fuscus 

 lateral bands on abdomen. 



Head, length .28 mm., width .40 mm. ; front rounded, with 

 four short hairs between the projecting palpi and two longer 

 ones in front of the ocular emargination ; the emargination dis- 

 tinct, rather shallow, "and with ocular fringe; temples moder- 

 ately expanded, rounded, with four long, slightly pustulated, 

 hairs ; occipital margin concave, transverse in center, with two 

 short marginal hairs, and the whole narrowly margined with 

 blackish ; a large, faint, occipital signature, with pale bands curv- 

 ing from its anterior corners to the base of the mandibles, which 

 are smatl, with dark points ; ocular bands indistinct, filling the 

 ocular depression, with a black fleck in the center and another 

 on the large clear eye; a brown spot on the margin just in front 

 of the palpi. 



. Prothorax with slightly produced, blunt anterior angles, bear- 

 ing three spines, the posterior angles bear one long hair, and tiiL 

 flatly rounded posterior margin four hairs ; the chitin bars quite 

 distinct, in the form of slightly flattened semicircles in the region 

 of the anterior angles, a pale transverse line ; metathorax with 

 quite a prominent suture setting off the mesothorax, which ha.'i 

 an angulatcd posterior margin and heavy bands on the anterior 

 angles ; sides of metathorax straight, widely diverging, and with 

 narrow marginal bands ; posterior angles obtuse, dusky, and with 

 one long hair and three spines ; posterior margin flatly rounded, 

 with a complete row of hairs : pale brown coxal bands showing 

 through ; legs concolorous witli body, bearing a few short hairs 

 and with indistinct marginal markings on tibiae. 



Abdomen rather large, elliptical, lateral angles serrate, armed 

 with one long hair and several short bristles ; posterior margin.s. 



186 



