Uhler.] 440 [April 17, 



galgulim:. 



Galgulus Latr. 

 G. oculatus. 



Naucoris oculaia Fabr., Syst. Rhyng., Ill, 5. Galgulus oculatus 

 Latr., Hist. Nat. Ins., xn, 386, pi. 95, fig. 9. 



No. 67, Harris' Collection, ?. "In brooks, leaping like a frog. 

 North Carolina, Prof. Hentz." Determined by Mr. Say. 



The above observation may apply to the beds of brooks from which 

 the water has been withdrawn. These insects do not live in the 

 water, but on muddy spots where the water has previously stood, or 

 on the damp banks of pools and streams, among the grass or stones. 



They vary very much in colors and size. The most brightly col- 

 ored specimens being of a clay brownish, speckled with silvery spots. 

 Others are dull rufous, greenish, dirty brownish, or clay brownish, 

 with a large black cloud on the disk. In Maryland, the species ap- 

 pears in May; a few stragglers have also been taken in August. 



NEPID^. 



Nepa Linn. 

 N. apiculata. 



Nepa apiculata Harris, Ins. Mass., 1862, pi. 1. fig. 1. 



No. 26, Harris' Collection. (i Nepa apiculata Say, MS. Under 

 stones near water. May 15, 1826." 



The principal differences between our species and the European 

 one consist in the color of the tergum, which is red in the latter, fus- 

 cous in ours, and in the length of the apical tubes, which in ours are 

 stouter and shorter. A single specimen only, lacking the apical tubes, 

 remains in the collection. 



Ranatra Fabr. 

 1. E. fusca. 



Ranatra fusca Beauv., Ins. Af. et Amer., 235, pi. 20, fig. 1. Ran- 

 atra nigra H.-Schf., Wanz. Ins., iv, 32, tab. 290, fig. L, head. 



No. 65, Harris' Collection. "Ranatra fusca Beauv. Pond, Taun- 

 ton, May 23, 1827 ; June 10, 1829. Cambridge, Oct. 1, 1832.' 

 Determined by Mr. Say. 



This species is sometimes very common in eastern Massachusetts. 

 Mr. E. P. Austin kindly presented to me several specimens of both 

 sexes, collected in Fresh Pond, Cambridge. These, in common wfth 



