548 CLASS INSECTA. 



small palette in the form of a long square. Their antennas 

 are at least of the length of the head and corslet. The body 

 is perfectly oval, and more broad than high. The eyes are 

 either not at all, or very little prominent.* 



Hygkobia, Lat. Hydrachna^ Fab. Clairv. Pcelobius, 



Schoenh. 



Which again have the tarsi with five distinct articulations, 

 and of which the four anterior ones are dilated almost equally 

 at their base, in the males, into a small palette formed like a 

 long square, but whose antennae are shorter than the head and 

 corslet; which have the. body oval, very thick in the middle, 

 and the eyes prominent.-]- 



* D. fuscus, Panz. Faun. Insect. Germ. LXXXVI. 5. ; D. Cinereus, 

 F.Fanz. ibid. XXXI. iu; D.zonatus, F. Panz. ibid, XXXYlll. 5; D. bi- 

 punctattis, F. Panz. ibid. XCI. 6 ; D.fenestratus, F. Panz. ibid. XXXVIII. 

 16 ; D. Chalconatus, F. Panz. ibid. 17 ; D. aier, F. Panz. ibid. 15; D. guttU' 

 tus, Payk. Panz. ibid. XC. i.; D.fuligenosus, F. Panz. ibid. XXXVIII. 14; 

 D. bi-pustulattis, F. Panz. ibid. CI. 2 ; J). Stagnalis, F. Panz. ibid. XCI. 7 ; 

 D. transversalisy F. Panz. ibid. LXXXVI. 6 ; D. abbreviatus, F. Panz. 

 ibid. XIV. i. ; D. maculatus, F. Panz. ibid. 7. ; D. agilis, F. Panz. ibid. XC. 

 2 ; D. adspersus, F. Panz. ibid. XXXVIII. 18; JD. miniitus, F. Panz. XXVI. 

 5. 5.; D. leander, Oliv. ibid. iii. 23; D varius, Oliv. ibid. ii. 17; D. bi- 

 maculatus, Oliv. ibid. 18. See Clarville, Entom. Helv., torn. II., genus 

 Coli/mbetes. 



Some small species having no distinct scutellum, and whose anterior 

 tarsi are but little dilated in the males, compose the genus 



Lacophilds of Dr. Leach. — He quotes the following: D. hyalinusy 

 Marsh ; D. interruptus, Panz. ; D. minutiis, Lin. ; D. marmoreus, Oliv. 

 See his Zool. Miscel. III. p. 72. 



•j- Hydrachna Hermanni, Fab. Latr. Gen. Crust, et Insect. I. vi. 5; 

 Clairv, Entom. Helv. II. xxvii. A. a. ; //. uligi7iosa, Clairv. ibid. B. b. 



These insects, and the Halipli form in the method of Dr. Leach, Zool. 

 Misc. III. p. 68, a particular group, having for characters, a scutellum, 

 all the feet adapted for walking, five articulations in all the tarsi, and two 

 crotchets at the end of the last. 



