158 Philippine Journal of Science i»w 



This species was first described from a single male as belong- 

 ing to Dynopsylla, but some characters were noted in which the 

 species did not conform to the generic type. Subsequently many 

 other specimens of this species have come to hand and among 

 them females. The genitalia of the female at once show a 

 marked difference not only from Dynopsylla but from most other 

 genera. This species, therefore, is designated the type of a 

 new genus, which appears to be related to other genera of Car- 

 sidarinae. Since the first description did not include the female 

 and was somewhat inadequate in a few other respects, a more 

 detailed specific description is given herewith to replace the 

 other. 



Thysanogyna minor Crawford. Plate II, figs. 2 and 4. 



Dynopsylla minor Crawford, Philip. Journ. Sci. § D 12 (1917) 263. 



Length of body, 2.7 millimeters ; length of f orewing, 5 ; greatest 

 width, 2.3. General color light brown with darker brown streaks 

 on thoracic dorsum or the color may be dark brown with lighter 

 streaks; antennae with apical third or half of segments 3 to 8 

 and all of 9 and 10 black. Body surface more or less covered 

 with white flocculent excretion. Insect large and robust. 



Head about as broad as prothorax, but mesothorax consider- 

 ably broader, not much deflexed, cleft in front. Vertex a little 

 more than half as long as broad, deeply concave, the median 

 suture prominent, and the two halves nearly quadrate, the outer 

 anterior corner acute and upstanding, giving the appearance of 

 a horn (somewhat as in Dynopsylla) ; anterior margin of ver- 

 tex somewhat emarginate, the protruding genae at base of an- 

 tennae much emphasizing this emargination. Anterior ocellus 

 in front at base of cleft; frons visible as a small and narrow 

 sclerite between genae and below front ocellus. Genae very large, 

 protruding in front to form antennal bases, beneath the head 

 and just in front of labrum produced into a pair of verj^ small 

 wartlike cones. Labrum not large ; beak about as long as third 

 antennal segment. Antennas moderately long and slender, not 

 as long as body but usually as long as head and thorax or a 

 little longer. 



Thorax very large, well arched and broad, sparsely hairy. 

 Pronotum large ; mesonotum very large ; metanotum with a pair 

 of short blunt horns or epiphyses caudad. Legs long and large ; 

 hind tibiae with spur at base and several long fingerlike spines 

 at apex ; tarsi long. Forewings large and long, narrowly rounded 

 at apex, transparent, with four small brown spots along poste- 



