ACANTHOSOMA. 



315 



apical segmeutal angles acute, angles of the sixth segment strongly 

 produced, blackish-brown : body beneath and legs ochraceous, 

 abdomen speckled with purplish on each lateral ai'ea. 



Length 12 ; breadth between pronotal angles 6 millim. 



Hah. Bombay {LeWi). Calcutta {Atlcimon). Sikliim. Burma; 

 Palon {Fea). 



507. Microdeuterus dallasi, Atkins. J. A. S. B. Iviii, p. 21 (1889). 



Microdeuterus megacephalus, 

 Dull, (iiec Ilerr-Sch.^ List 

 Hem. i, p. 300, t. 10, f. 4 

 (1851). 



This species was separated 

 by Atkinson from M. mega- 

 cephalus by the differences in 

 the spinose posterior prolon- 

 gations of the connexivum, 

 which though present are 

 much less produced ; it is 

 also more unicolorous above 

 and smaller in size. 

 Length 9 millim. 

 jVorth India {Boys, Brit. Mus.). 



Mkrodc uterus dallasi. 



Genus ACANTHOSOMA. 



Acanthosoma, Curtis, Brit. E?it. i, p. 28 (1821) ; Dall. (part.) List 



Hem. i, p. 198 (1851) ; Fieb. Fur. Hem. p. 327 (1861). 

 Cliiiocoris, part., Halm, Wanz. Lis. ii, p. 70 (1831). 

 Oxydalus, iMuls. Sf Rey, Pim. France, Pent. p. 324 (1866). 

 Elasmostethus, Stdl, Of v. Vet.-Ak. Fdrh. 1872, (3) p. 39. 



Type, A. Iwrnorrhoidale, Linn., a Palsearctic species. 



Distribution. Nearctic, Neotropical, Palsearctic, and Oriental 

 Regions. 



Head small, flat, triangular ; antennae five-jointed, first joint 

 extending beyond the apex of the head; pronotum without carinate 

 margins, the lateral angles moderately prominent ; scutellum 

 slightly longer than broad, its apex much narrowed : sternal 

 ridge very high, abruptly lowered before the intermediate coxae, 

 rounded anteriorly and extending beyond the base of the head ; 

 apical angles of the sixth abdominal segment rounded at their 

 apices in the male sex. 



508. Acanthosoma proximum, Ball. List Hem. i, p. 303 (1851) ; Dist. 

 Sec. Yarkand Miss., Rhynch. p. 7 (1879). 



Above brownish or yellowish-green, coarsely punctate, the head, 

 margins and lateral angles of pronotum paler in hue, the last, 

 both above and beneath, with a roseate tinge; punctures blackish, 



